Federal Register / Vol. 80, No. 91 / Tuesday, May 12, 2015 / Rules and Regulations 27081

TABLE 1 TO PARAGRAPH (h) OF THIS AD—WORK TASKS—Continued

Accomplish the identified work tasks in accordance with For Model— Previously modified using— the instructions of—

A310–204 and –304 ...... Service Bulletin Work Tasks 831–802001 and 831–803001 using Airbus A310–74–2003, dated Service Bulletin A310–74–2003, Revision 06, dated July 2, 2010. January 27, 2014. A310–204 and –304 airplanes ...... Airbus Service Bulletin Work Tasks 831–802001 and 831–803001 using Airbus A310–74–2003, Revision Service Bulletin A310–74–2003, Revision 06, dated 01, dated April 1, 2011. January 27, 2014. A310–204 and –304 airplanes ...... Airbus Service Bulletin Work Tasks 831–802001 and 831–803001 using Airbus A310–74–2003, Revision Service Bulletin A310–74–2003, Revision 06, dated 02, dated February 9, January 27, 2014. 2012. A310–204 and –304 airplanes ...... Airbus Service Bulletin Work Task 831–803001 using Airbus Service Bulletin A310–74–2003, Revision A310–74 2003, Revision 06, dated January 27, 2014. 03, dated May 10, 2012.

(i) Credit for Previous Actions Flight Standards District Office, as Office—EAW, 1 Rond Point Maurice (1) This paragraph provides credit for the appropriate. If sending information directly Bellonte, 31707 Blagnac Cedex, ; actions required by paragraph (g) of this AD, to the International Branch, send it to ATTN: telephone +33 5 61 93 36 96; fax +33 5 61 if those actions were performed before the Dan Rodina, Engineer, 93 44 51; email account.airworth-eas@ effective date of this AD using the applicable International Branch, ANM–116, Transport airbus.com; Internet http://www.airbus.com. service information specified in paragraphs Directorate, FAA, 1601 Lind (4) You may view this service information (i)(1)(i) and (i)(2)(ii) of this AD, and provided Avenue SW., Renton, WA 98057–3356; at the FAA, Transport Airplane Directorate, that the additional work in Airbus Service telephone 425–227–2125; fax 425–227–1149. 1601 Lind Avenue SW., Renton, WA. For Bulletin A300–74–6003, Revision 06, dated Information may be emailed to: 9-ANM-116- information on the availability of this January 27, 2014; or Airbus Service Bulletin [email protected]. Before using material at the FAA, call 425–227–1221. A310–74–2003, Revision 06, dated January any approved AMOC, notify your appropriate (5) You may view this service information 27, 2014; is done, as required by paragraph principal inspector, or lacking a principal that is incorporated by reference at the (g) of this AD. inspector, the manager of the local flight National Archives and Records standards district office/certificate holding (i) For Model A300 B4–601, B4–603, and Administration (NARA). For information on district office. The AMOC approval letter B4–605R airplanes, Model A300 F4–605R the availability of this material at NARA, call must specifically reference this AD. airplanes, and Model A300 C4–605R Variant 202–741–6030, or go to: http:// (2) Contacting the Manufacturer: For any F airplanes: Airbus Mandatory Service www.archives.gov/federal-register/cfr/ibr- requirement in this AD to obtain corrective Bulletin A300–74–6003, Revision 04, dated locations.html. actions from a manufacturer, the action must January 9, 2013, which is not incorporated by be accomplished using a method approved Issued in Renton, Washington, on April 10, reference in this AD. by the Manager, International Branch, ANM– 2015. (ii) For Model A310–204 and –304 116, Transport Airplane Directorate, FAA; or Jeffrey E. Duven, airplanes: Airbus Mandatory Service Bulletin the European Aviation Safety Agency A310–74–2003, Revision 04, dated January 9, Manager, Transport Airplane Directorate, (EASA); or Airbus’s EASA Design Aircraft Certification Service. 2013, which is not incorporated by reference Organization Approval (DOA). If approved by [FR Doc. 2015–10181 Filed 5–11–15; 8:45 am] in this AD. the DOA, the approval must include the (2) This paragraph provides credit for the DOA-authorized signature. BILLING CODE 4910–13–P actions required by paragraph (g) of this AD, if those actions were performed before the (k) Related Information effective date of this AD using the applicable (1) Refer to Mandatory Continuing DEPARTMENT OF TRANSPORTATION service information specified in paragraphs Airworthiness Information (MCAI) EASA (i)(2)(i) and (i)(2)(ii) of this AD. Airworthiness Directive 2014–0156, dated Federal Aviation Administration (i) For Model A300 B4–601, B4–603, and July 3, 2014, for related information. This B4–605R airplanes, Model A300 F4–605R MCAI may be found in the AD docket on the 14 CFR Part 39 airplanes, and Model A300 C4–605R Variant Internet at http://www.regulations.gov/ F airplanes: Airbus Service Bulletin A300– #!documentDetail;D=FAA-2012-0636-0002. [Docket No. FAA–2012–1107; Directorate 74–6003, Revision 05, dated May 23, 2013, (2) Service information identified in this Identifier 2011–NM–216–AD; Amendment which is not incorporated by reference in this AD that is not incorporated by reference may 39–18143; AD 2015–08–07] AD. be viewed at the addresses specified in (ii) For Model A310–204 and –304 paragraphs (l)(3) and (l)(4) of this AD. RIN 2120–AA64 airplanes: Airbus Service Bulletin A310–74– 2003, Revision 05, dated May 23, 2013, (l) Material Incorporated by Reference Airworthiness Directives; Zodiac which is not incorporated by reference in this (1) The Director of the Federal Register Aerotechnics (Formerly Intertechnique AD. approved the incorporation by reference Aircraft Systems) Oxygen Mask (IBR) of the service information listed in this Regulators (j) Other FAA AD Provisions paragraph under 5 U.S.C. 552(a) and 1 CFR The following provisions also apply to this part 51. AGENCY: Federal Aviation AD: (2) You must use this service information Administration (FAA), Department of (1) Alternative Methods of Compliance as applicable to do the actions required by Transportation (DOT). (AMOCs): The Manager, International this AD, unless this AD specifies otherwise. Branch, ANM–116, Transport Airplane (i) Airbus Service Bulletin A300–74–6003, ACTION: Final rule. Directorate, FAA, has the authority to Revision 06, dated January 27, 2014. approve AMOCs for this AD, if requested (ii) Airbus Service Bulletin A310–74–2003, SUMMARY: We are adopting a new using the procedures found in 14 CFR 39.19. Revision 06, dated January 27, 2014. airworthiness directive (AD) for certain In accordance with 14 CFR 39.19, send your (3) For service information identified in Zodiac Aerotechnics (formerly request to your principal inspector or local this AD, contact Airbus SAS, Airworthiness Intertechnique Aircraft Systems) oxygen

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mask regulators. This AD was prompted (formerly Intertechnique Aircraft service publications which identify by s/n by a report of a malfunctioning mask Systems) oxygen mask regulators. The and P/N, in Appendix II of the SB, more having an inflatable harness with a high NPRM published in the Federal oxygen mask regulators that are known or premature rupture rate due to defective Register on October 25, 2012 (77 FR suspected to have an affected harness installed. Finally, this [EASA] AD is revised silicon. This AD requires inspecting and 65148). to add a Note to the Required Actions replacing defective harnesses with new The European Aviation Safety Agency section, to stress the fact that other oxygen or modified serviceable units. We are (EASA), which is the Technical Agent mask regulators could be affected, in addition issuing this AD to detect and correct for the Member States of the European to those listed in Appendix II of the SB. defective harnesses, which could lead, Union, has issued EASA Airworthiness in case of a sudden depressurization Directive 2011–0090R1, dated July 13, You may examine the MCAI in the event, to a harness rupture, thereby 2011 (referred to after this as the AD docket on the Internet at http:// providing inadequate protection against Mandatory Continuing Airworthiness www.regulations.gov/ hypoxia and possibly resulting in Information, or ‘‘the MCAI’’), to detect #!documentDetail;D=FAA-2012-1107- unconsciousness of the affected and correct an unsafe condition on 0003. flightcrew member and consequent certain Zodiac Aerotechnics (formerly Actions Since the NPRM (77 FR 65148, reduced control of the airplane. Intertechnique Aircraft Systems) oxygen October 25, 2012) was Issued mask regulators. The MCAI states: DATES: This AD becomes effective June We have reviewed 16, 2015. A malfunction of a quick donning mask Service Bulletin MXH–35–241, Revision The Director of the Federal Register was reported to [Zodiac Aerotechnics 3, dated June 23, 2011. The NPRM approved the incorporation by reference (formerly] Intertechnique [Aircraft Systems], referenced Zodiac Aerospace (formerly of certain publications listed in this AD who initiated an investigation in order to Intertechnique Aircraft Systems) Service as of June 16, 2015. detect the root cause and the failure mode. Bulletin MXH–35–241, Revision 2, ADDRESSES: You may examine the AD Despite the fact that the analysis did not lead to any final conclusion, discrete suspected dated May 19, 2011, as one of the docket on the Internet at http:// silicon batches have been identified which appropriate sources of service www.regulations.gov/ have shown an unusually high premature information for the required actions. #!docketDetail;D=FAA-2012-1107; or in rupture rate. Zodiac Aerospace Service Bulletin person at the Docket Management Some of the affected harnesses are known MXH–35–241, Revision 3, dated June Facility, U.S. Department of to have been delivered as spares. 23, 2011, corrected typographical errors Transportation, Docket Operations, M– Consequently, an inflatable harness belonging to one of the suspect batches may and updated a flow chart, but specifies 30, West Building Ground Floor, Room the same procedures as the earlier W12–140, 1200 New Jersey Avenue SE., have become installed on an Oxygen Mask Regulator, the serial number (s/n) or [part revision. Washington, DC. number] P/N of which is not identified in We have revised the references in For Zodiac Aerospace service Appendix II of Intertechnique [Zodiac paragraphs (g) and (h) of this AD to refer information identified in this AD, Aerospace] Service Bulletin (SB) MXH–35– to Zodiac Aerospace Service Bulletin contact Zodiac Services, Technical 240. MXH–35–241, Revision 3, dated June Publication Department, Zodiac This fact widens the Applicability of this 23, 2011, as one of the appropriate [EASA] AD to extend beyond the individual Aerotechnics, Oxygen Systems Europe, sources of service information for the 61 Rue Pierre Curie–CS20001, 78373 Oxygen Mask Regulators identified by s/n and P/N in Appendix II of the SB. required actions. We have also added Plaisir Cedex, France; phone: (33) 01 61 Zodiac Aerospace Service Bulletin 34 23 23; fax: (33) 01 30 55 71 61; email: This condition, if not detected and corrected, could lead, in case of a sudden MXH–35–241, Revision 2, dated May [email protected]; depressurization event, to a harness rupture, 19, 2011, to paragraph (l) of this AD to Internet: thereby providing inadequate protection allow credit for previous actions done www.services.zodiacaerospace.com. against hypoxia of the affected flight crew using that service information. You may view this referenced service member, possibly resulting in information at the FAA, Transport unconsciousness and consequent reduced Comments Airplane Directorate, 1601 Lind Avenue control of the aeroplane. For the reasons described above, this We gave the public the opportunity to SW., Renton, WA. For information on participate in developing this AD. The the availability of this material at the [EASA] AD requires the identification and replacement of all potentially defective following presents the comments FAA, call 425–227–1221. It is also harnesses with serviceable units. received on the NPRM (77 FR 65148, available on the Internet at http:// Note 1: The affected batches were installed October 25, 2012) and the FAA’s www.regulations.gov by searching for on harnesses manufactured between response to each comment. and locating Docket No. FAA–2012– December 2008 and August 2010, having 1107. dates codes 0850S (week 50 of 2008) through Request To Revise Service Information 1031S (week 31 of 2010). Contact FOR FURTHER INFORMATION CONTACT: Ian Note 2: Harness assemblies that do not Lucas, Aerospace Engineer, Boston have a batch code were manufactured before Zodiac Aerotechnics (formerly Aircraft Certification Office (ACO) week 33 of 2008 and are not affected by this Intertechnique Aircraft Systems) ANE–150, FAA, Engine and Propeller unsafe condition. requested revising the contact address, Directorate, 12 New England Executive This [EASA] AD has been revised to telephone number, and Web site in Park, Burlington, MA 01803; phone: correct a typographical error in the paragraph (n)(2) of the NPRM (77 FR 781–238–7757; fax: 781–238–7170; Applicability, which inadvertently referred 65148, October 25, 2012) to read ‘‘61 email: [email protected]. to P/N MA10–12 masks, whereas in fact, all Rue Pierre Curie CS20001,’’ and P/N MA10 series could have an affected SUPPLEMENTARY INFORMATION: ‘‘telephone: (33) 1 61 34 23 23,’’ and harness installed. In addition, this revised ‘‘www.services.zodiacaerospace.com.’’ Discussion [EASA] AD corrects Note 2 (above), which confused harness manufacturing date codes We have revised this AD to identify We issued a notice of proposed with the affected harnesses batch codes. the legal name of the manufacturer as rulemaking (NPRM) to amend 14 CFR This [EASA] AD is also revised to make published in the most recent technical part 39 by adding an AD that would reference to the latest revisions of the service order for crewmember demand apply to certain Zodiac Aerotechnics referenced Intertechnique [Zodiac Aerospace] oxygen masks. Intertechnique Aircraft

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Systems changed its legal name to 7, dated September 1, 2011, could apply ‘‘Before further flight’’ specified in Zodiac Aerotechnics; therefore we to Bombardier airplanes if the crew paragraph (h) of the NPRM (77 FR revised the manufacturer name in the oxygen masks delivered with the 65148, dated October 25, 2012) be SUMMARY and ADDRESSES sections, and airplanes were removed and replaced replaced using a compliance time of ‘‘Applicability’’ and ‘‘Material with masks listed in Zodiac Aerospace ‘‘Within 24 months after the effective Incorporated by Reference’’ paragraphs Service Bulletin MXH–35–240, Revision date of this AD,’’ to match the of this AD. We have changed this 7, dated September 1, 2011. compliance time specified in paragraph contact information in the ADDRESSES We acknowledge the commenter’s (g)(1) of the NPRM. Air Wisconsin section of this final rule and paragraph concern that it may be possible that a stated paragraph (g)(1) of the NPRM (o)(3) of this AD accordingly. harness on a Bombardier airplane may would require an inspection to be replaced with one listed in Appendix determine if the part number and batch Request To Withdraw NPRM (77 FR I of Zodiac Service Bulletin MXH–35– number of the inflatable harness are 65148, October 25, 2012) or Revise 240, Revision 7, dated September 1, listed in Appendix I of Zodiac Service Compliance Time 2011, during the maintenance of the Bulletin MXH–35–241, Revision 2, American (American) airplane. However, this AD corresponds dated May 19, 2011. requested that we withdraw the NPRM to EASA AD 2011–0090R1, dated July We agree with the commenter’s (77 FR 65148, October 25, 2012). Based 13, 2011, which specifies using Zodiac request because the intent of this final on Boeing’s analysis referenced in a Aerospace Service Bulletin MXH–35– rule is to replace affected harnesses Boeing Service Letter, American 241, Revision 3, dated June 23, 2011, for within a compliance time of 24 months. disagreed with the need for the NPRM. Bombardier airplanes. The suggested We have changed the compliance time American stated that the concern in the changes would alter the actions in paragraph (h) of this AD to read, NPRM has been reviewed by Boeing for currently proposed in the NPRM (77 FR ‘‘Within 24 months after the effective potential safety and was found not to be 65148, October 25, 2012), so additional date of this AD.’’ safety-based on a numerical risk rulemaking would be required. assessment. American stated that if we We find that delaying this action Request To Revise Exception Paragraph do not withdraw the NPRM, it requests would be inappropriate in light of the to Include Date of Manufacture (DMF) that we extend the threshold specified identified unsafe condition. Therefore, Codes in the NPRM to a minimum of 3 years. we have not changed this AD regarding American requested that the list of We do not agree with the commenter’s this issue. However, we might consider excluded part numbers specified by request to withdraw the NPRM (77 FR further rulemaking if EASA issues paragraph 1.A.(4) of Zodiac Service 65148, October 25, 2012) or extend the additional rulemaking or we determine Bulletin MXH–35–240, Revision 7, compliance time. We agree with the that an additional inspection of dated September 1, 2011, be included in EASA’s finding of an unsafe condition, Bombardier airplanes for harnesses paragraph (i) of the NPRM (77 FR 65148, as explained in EASA AD 2011–0090R1, identified in Appendix I of Zodiac October 25, 2012), for clarity. dated July 13, 2011, as well as the Service Bulletin MXH–35–240, Revision We agree with the commenter’s compliance time for taking corrective 7, dated September 1, 2011, is request to include the excluded part action that is specified in the EASA AD necessary. numbers because the list of excluded 2011–0090R1. However, affected oxygen mask regulators specified by operators may request approval of an Request To Revise Regulatory paragraph 1.A.(4), ‘‘Not Concerned alternative method of compliance Paragraph into a Note Equipment,’’ of Zodiac Service Bulletin (AMOC) for an extension of the United Airlines (United) requested MXH–35–240, Revision 7, dated compliance time for the inspection that we change paragraph (g)(2) of the September 1, 2011, is not directly under the provisions of paragraph (m) of NPRM (77 FR 65148, October 25, 2012) captured in the content of this AD. We this AD by submitting data to a note. United contends that have changed paragraph (i) of this AD substantiating that the change would paragraph (g)(2) of the NPRM is worded to include those part numbers listed in provide an acceptable level of safety. as a clarification as to whether an paragraph 1.A.(4), ‘‘Not Concerned We have not changed this AD in this operator can use Appendix II of Zodiac Equipment,’’ of Zodiac Service Bulletin regard. Service Bulletin MXH 35 240, Revision MXH–35–240, Revision 7, dated Request To Clarify Affected Airplanes 7, dated September 1, 2011; or September 1, 2011. Appendix II of Zodiac Service Bulletin for Inspection and Replacement Request To Revise Applicability Requirements MXH 35 241, Revision 3, dated June 23, 2011; alone in demonstrating American requested that paragraph (c) Horizon Air requested that paragraphs compliance to the AD. of the NPRM (77 FR 65148, October 25, (g)(1), (g)(2), (h), and (k) of the NPRM We agree that the wording in 2012) be revised to state the AD is (77 FR 65148, October 25, 2012) be paragraph (g)(2) of the NPRM (77 FR applicable only to harnesses having revised for clarity. Horizon stated the 65148, October 25, 2012) is DMF codes between (0850S) and NPRM appears to address only the ‘‘as informational and is meant to clarify (1031S). American explained that the delivered’’ condition of the airplanes. that using Appendix II of Zodiac Service corresponding EASA AD 2011–0090R1, Horizon indicated the NPRM stated that Bulletin MXH 35 241, Revision 3, dated dated July 13, 2011, requires the Zodiac Aerospace Service Bulletin June 23, 2011 alone is not allowed. We identification and replacement of ‘‘all MXH–35–240, Revision 7, dated have re-designated paragraph (g)(2) of potentially defective harnesses.’’ September 1, 2011, applies ‘‘for all the NPRM as Note 1 to paragraph (g) of American explained that specifying aircraft other than Bombardier this AD. We have also re-designated which harnesses had affected DMF airplanes,’’ and Zodiac Aerospace paragraph (g)(1) of the NPRM as codes would provide clarity. Service Bulletin MXH–35–241, Revision paragraph (g) of this AD. We disagree with the commenter’s 3, dated June 23, 2011, applies ‘‘for request to revise the applicability Bombardier airplanes.’’ Horizon stated Request To Revise Compliance Time specified in paragraph (c) of this AD. this is incorrect since Zodiac Aerospace Air Wisconsin Airlines (Air The applicability specified in paragraph Service Bulletin MXH–35–240, Revision Wisconsin) requested that the phrase (c) of this AD identifies affected oxygen

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mask regulators since harnesses can be unsafe condition. Also, since oxygen replacement before further flight. We rotated and replaced on the oxygen mask regulators are rotable parts, it is have not changed the final rule mask regulators. We also note that DMF possible that an oxygen mask regulator regarding this issue. codes apply to the regulators and not can be rotated onto a new production Request To Reference Flow Chart the harnesses. aircraft once it is in service. No change Contained in Service Information However, we note that paragraph (i) of has been made to this AD in this regard. this AD does clarify which harnesses are Boeing requested that paragraph (k) of affected by the inspection and Request To Revise Wording in the NPRM (77 FR 65148, October 25, replacement requirements of paragraphs Paragraph (k) of the NPRM (77 FR 2012) be revised by adding the words (g) and (h) of this AD. Paragraph (i) of 65148, October 25, 2012) ‘‘This determination can be made by this AD also states that oxygen mask American and Horizon Air requested following the flow chart contained in regulators having certain DMF codes are we revise paragraph (k) of the NPRM (77 paragraph 3., ‘‘Accomplishment excluded from the inspection and FR 65148, October 25, 2012) by Instructions,’’ of Zodiac Service Bulletin replacement requirements of paragraphs replacing the word ‘‘install’’ with the MXH–35–240, Revision 7, dated (g) and (h) of this AD. No change has word ‘‘replace.’’ American stated if the September 1, 2011.’’ Boeing stated that, been made to this AD in this regard. oxygen mask/regulator is removed to by adding these words, the NPRM facilitate maintenance prior to the would match EASA AD 2011–0090 R1, Request To Clarify Affected Oxygen compliance date of the AD, the NPRM, dated July 13, 2011. Boeing stated the Mask Regulators as written, would prohibit operators flow chart includes an acceptance United requested we revise paragraph from re-installing the crew oxygen decision based on the letter ‘‘I’’ written (i) of the NPRM (77 FR 65148, October mask/regulator and would require on the bushing of the inflatable harness 25, 2012) by adding the words ‘‘having immediate installation of a new or re- of the crew oxygen mask to indicate it a part number and batch number identified harness in order to comply has been inspected using this service identified in Appendix I of the service with the AD. Horizon stated that the use information. information specified in paragraph (i)(1) of the word ‘‘install’’ effectively reduces We agree with the commenter’s or (i)(2) of this AD’’ to clarify which the compliance time to perform the request because using the flow chart in masks are subject to inspection and inspection and replacement specified by paragraph 3., ‘‘Accomplishment replacement requirements. United also paragraphs (g) and (h) of the NPRM. Instructions,’’ of Zodiac Service Bulletin requested that we revise paragraph (i) of American stated this clarification would MXH–35–240, Revision 7, dated the NPRM by specifying that the part allow operators adequate time to remove September 1, 2011, reflects the current number and batch number are those of and re-install a crew oxygen mask/ method to determine whether a mask the ‘‘harness assembly,’’ and the date of regulator to facilitate maintenance prior needs to be replaced. We have revised manufacturing is that of the ‘‘mask to the compliance date. paragraph (k) of this AD by referring to assembly.’’ United stated that, while paragraph the flow chart contained in paragraph We agree with the commenter’s (h) of the NPRM (77 FR 65148, October 3., ‘‘Accomplishment Instructions,’’ of request for the reasons provided by the 25, 2012) clearly stated the replacement Zodiac Aerospace Service Bulletin commenter. We have revised paragraph requirement, United had concerns MXH–35–240, Revision 7, dated (i) of this AD accordingly. regarding Zodiac Service Bulletin September 1, 2011, to determine if parts MXH–35–240, Revision 7, dated are not listed in Appendix I of Zodiac Request To Carry Forward Exceptions September 1, 2011. We contacted and Allow Original Equipment Aerospace Service Bulletin MXH–35– United for clarification. Where 240, Revision 7, dated September 1, Manufacturer (OEM) Date in Lieu of paragraph 3.C. of the Accomplishment DMF Code 2011. Instructions of Zodiac Service Bulletin We have also removed the reference Boeing requested that we revise the MXH–35–240, Revision 7, dated to Zodiac Aerospace Service Bulletin NPRM (77 FR 65148, October 25, 2012) September 1, 2011, uses the word MXH–35–241, Revision 2, dated May to allow the exceptions of paragraph (i) ‘‘modification,’’ United suggested using 19, 2011, from paragraph (k) of the of the NPRM to carry forward into the word ‘‘replacement.’’ NPRM (77 FR 65148, October 25, 2012), paragraph (k) of the NPRM for the parts We agree to provide clarification. The in order to match EASA AD 2011–0090 installation prohibition for new intent of the ‘‘Parts Installation R1, dated July 13, 2011. For all production aircraft. Boeing also Prohibition’’ specified in paragraph (k) airplanes, the parts listed in Appendix requested that we revise the NPRM to of this AD is that operators replace parts I of Zodiac Aerospace Service Bulletin allow the date on which an oxygen with good parts rather than bad parts. MXH–35–240, Revision 7, dated mask was serviced for remanufacture or Although the words ‘‘install,’’ and September 1, 2011, may not be installed. overhaul by the OEM to replace the date ‘‘modification’’ are generally considered of manufacture of the original mask. to be broader than the word ‘‘replace,’’ Removal of ‘‘Airworthy Product’’ Boeing contends that, where inflatable for purposes of this AD, these words Paragraph from this AD harnesses have been serviced, the OEM should be interpreted as meaning We have removed paragraph (m)(2) of meets all existing AD requirements. ‘‘replace’’ while remaining within the the NPRM (77 FR 65148, October 25, We disagree with both requests for spirit and intent of the AD. Therefore, 2012) since the airworthy product allowing the exceptions to carry forward simply reinstalling the same part during statement regarding contacting the and to allow the date of service to maintenance activities is acceptable for manufacturer or other sources is replace the date of manufacture because compliance with the requirements of unnecessary in this AD. We the root cause of the defective oxygen paragraph (k) of this AD for that redesignated paragraph (m)(1) as masks is a high premature rupture rate reinstallation. However, if an inflatable paragraph (m) of this AD. due to defective silicon. This harness has a part number and batch manufacturing defect affected a specific number identified as being from a Conclusion manufacturing batch. Thus, it is defective batch during the inspection We reviewed the relevant data, possible that a mask overhaul may not required by paragraph (g) of this AD, considered the comments received, and necessarily address the root cause or paragraph (h) of this AD requires determined that air safety and the

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public interest require adopting this AD products identified in this rulemaking (a) Effective Date with the changes described previously action. This AD becomes effective June 16, 2015. and minor editorial changes. We have Regulatory Findings (b) Affected ADs determined that these minor changes: • Are consistent with the intent that We determined that this AD will not None. was proposed in the NPRM (77 FR have federalism implications under (c) Applicability Executive Order 13132. This AD will 65148, October 25, 2012) for correcting This AD applies to Zodiac Aerotechnics the unsafe condition; and not have a substantial direct effect on (formerly Intertechnique Aircraft Systems) • Do not add any additional burden the States, on the relationship between flightcrew oxygen mask regulators, all part upon the public than was already the national government and the States, number (P/N) MA10, MC10, MC20, MF10, proposed in the NPRM (77 FR 65148, or on the distribution of power and MF20, MLC20, MLD20, MRA005, MRA022, October 25, 2012). responsibilities among the various and MRA023 series; certificated in any We also determined that these levels of government. category; installed on, but not limited to, changes will not increase the economic For the reasons discussed above, I airplanes manufactured by Airbus, ATR, BAE burden on any operator or increase the certify that this AD: Systems (Type Certificate previously held by British Aerospace), Boeing, Bombardier scope of this AD. 1. Is not a ‘‘significant regulatory action’’ under Executive Order 12866; (Type Certificate previously held by Related Service Information Under 1 2. Is not a ‘‘significant rule’’ under the Canadair, De Havilland Canada), Cessna, CFR Part 51 DOT Regulatory Policies and Procedures Dassault, EADS CASA, EMBRAER, Gulfstream, Hawker Beechcraft (Type Zodiac Aerospace has issued Service (44 FR 11034, February 26, 1979); Certificate previously held by Raytheon, Bulletin MXH–35–240, Revision 7, 3. Will not affect intrastate aviation in Beech), Israel Aircraft Industries (IAI), dated September 1, 2011; and Service Alaska; and McDonnell Douglas, Piaggio, Pilatus, Piper, Bulletin MXH–35–241, Revision 3, 4. Will not have a significant and SOCATA. economic impact, positive or negative, dated June 23, 2011. The service (d) Subject information describes procedures for on a substantial number of small entities under the criteria of the Regulatory Air Transport Association (ATA) of inspecting and replacing defective America Code 35, Oxygen. harnesses with new or modified Flexibility Act. serviceable units. This service Examining the AD Docket (e) Reason information is reasonably available at You may examine the AD docket on This AD was prompted by a report of a malfunctioning mask having an inflatable http://www.regulations.gov by searching the Internet at http://www.regulations. for and locating Docket No. FAA–2012– harness with a high premature rupture rate gov/#!docketDetail;D=FAA-2012-1107; due to defective silicon. We are issuing this 1107. Or see ADDRESSES for other ways or in person at the Docket Management to access this service information. AD to detect and correct defective harnesses, Facility between 9 a.m. and 5 p.m., which could lead, in case of a sudden Costs of Compliance Monday through Friday, except Federal depressurization event, to a harness rupture, holidays. The AD docket contains this thereby providing inadequate protection We estimate that this AD affects 5,500 AD, the regulatory evaluation, any against hypoxia and possibly resulting in airplanes of U.S. registry. comments received, and other unconsciousness of the affected flightcrew We also estimate that it will take information. The street address for the member and consequent reduced control of about 1 work-hour per product to Docket Operations office (telephone the airplane. comply with the basic requirements of 800–647–5527) is in the ADDRESSES (f) Compliance this AD. The average labor rate is $85 section. per work-hour. Required parts will cost You are responsible for having the actions $0 per product. Based on these figures, List of Subjects in 14 CFR Part 39 required by this AD performed within the compliance times specified, unless the we estimate the cost of this AD on U.S. Air transportation, Aircraft, Aviation actions have already been done. operators to be $467,500, or $85 per safety, Incorporation by reference, (g) Inspection product. Safety. Except as provided by paragraph (i) of this Authority for this Rulemaking Adoption of the Amendment AD: Within 24 months after the effective date Title 49 of the United States Code Accordingly, under the authority of this AD, inspect the inflatable harness specifies the FAA’s authority to issue delegated to me by the Administrator, fitted to each flightcrew oxygen mask rules on aviation safety. Subtitle I, regulator to determine if the inflatable the FAA amends 14 CFR part 39 as harness is installed with a part number and section 106, describes the authority of follows: the FAA Administrator. ‘‘Subtitle VII: a batch number identified in Appendix I of Zodiac Aerospace Service Bulletin MXH–35– Aviation Programs,’’ describes in more PART 39—AIRWORTHINESS 240, Revision 7, dated September 1, 2011 (for detail the scope of the Agency’s DIRECTIVES all airplanes other than Bombardier authority. airplanes); or Appendix I of Zodiac ■ We are issuing this rulemaking under 1. The authority citation for part 39 Aerospace Service Bulletin MXH–35–241, the authority described in ‘‘Subtitle VII, continues to read as follows: Revision 3, dated June 23, 2011 (for Part A, Subpart III, Section 44701: Authority: 49 U.S.C. 106(g), 40113, 44701. Bombardier airplanes). General requirements.’’ Under that Note 1 to paragraph (g) of this AD: section, Congress charges the FAA with § 39.13 [Amended] Referring only to Appendix II of Zodiac promoting safe flight of civil aircraft in ■ 2. The FAA amends § 39.13 by adding Aerospace Service Bulletin MXH–35–240, Revision 7, dated September 1, 2011; or air commerce by prescribing regulations the following new airworthiness for practices, methods, and procedures Appendix II of Zodiac Aerospace Service directive (AD): Bulletin MXH–35–241, Revision 3, dated the Administrator finds necessary for 2015–08–07 Zodiac Aerotechnics (formerly June 23, 2011; to identify a specific oxygen safety in air commerce. This regulation Intertechnique Aircraft Systems): mask regulator is insufficient to demonstrate is within the scope of that authority Amendment 39–18143. Docket No. that the inflatable harness fitted to that because it addresses an unsafe condition FAA–2012–1107; Directorate Identifier oxygen mask regulator is not listed in that is likely to exist or develop on 2011–NM–216–AD. Appendix I of Zodiac Aerospace Service

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Bulletin MXH–35–240, Revision 7, dated listed in Appendix I of Zodiac Aerospace (i) Zodiac Aerospace Service Bulletin September 1, 2011; or Appendix I of Zodiac Service Bulletin MXH–35–240, Revision 7, MXH–35–240, Revision 7, dated September Aerospace Service Bulletin MXH–35–241, dated September 1, 2011, by following the 1, 2011. Revision 3, dated June 23, 2011. flow chart contained in paragraph 3., (ii) Zodiac Aerospace Service Bulletin ‘‘Accomplishment Instructions,’’ of Zodiac MXH–35–241, Revision 3, dated June 23, (h) Replacement Aerospace Service Bulletin MXH–35–240, 2011. If during the inspection required by Revision 7, dated September 1, 2011. (3) For Zodiac Aerospace service information identified in this AD, contact paragraph (g) of this AD, an inflatable (l) Credit for Previous Actions harness has a part number and batch number Zodiac Services, Technical Publication identified in Appendix I of Zodiac Aerospace This paragraph provides credit for actions Department, Zodiac Aerotechnics, Oxygen Service Bulletin MXH–35–240, Revision 7, required by paragraph (g) of this AD, if those Systems Europe, 61 Rue Pierre Curie– dated September 1, 2011 (for all airplanes actions were performed before the effective CS20001, 78373 Plaisir Cedex, France; other than Bombardier airplanes); or date of this AD using the service information phone: (33) 01 61 34 23 23; fax: (33) 01 30 Appendix I of Zodiac Aerospace Service specified in paragraphs (l)(1) through (l)(4) of 55 71 61; email: yann.laine@ Bulletin MXH–35–241, Revision 3, dated this AD, as applicable, which are not zodiacaerospace.com; Internet: June 23, 2011 (for Bombardier airplanes): incorporated by reference in this AD. www.services.zodiacaerospace.com. Within 24 months after the effective date of (1) Zodiac Aerospace Service Bulletin (4) You may view this service information this AD, replace the inflatable harness with MXH–35–240, Revision 6, dated August 16, at the FAA, Transport Airplane Directorate, a new or re-identified harness, in accordance 2011 (for all airplanes other than Bombardier 1601 Lind Avenue SW., Renton, WA. For with the Accomplishment Instructions of airplanes). information on the availability of this Zodiac Aerospace Service Bulletin MXH–35– (2) Zodiac Aerospace Service Bulletin material at the FAA, call 425–227–1221. MXH–35–240, Revision 5, dated July 26, 240, Revision 7, dated September 1, 2011 (for (5) You may view this service information 2011 (for all airplanes other than Bombardier all airplanes other than Bombardier that is incorporated by reference at the airplanes). airplanes); or Zodiac Aerospace Service National Archives and Records (3) Zodiac Aerospace Service Bulletin Bulletin MXH–35–241, Revision 3, dated Administration (NARA). For information on MXH–35–240, Revision 4, dated June 10, June 23, 2011 (for Bombardier airplanes). the availability of this material at NARA, call 2011 (for all airplanes other than Bombardier 202–741–6030, or go to: http:// (i) Exception airplanes). www.archives.gov/federal-register/cfr/ibr- Oxygen mask regulators having a date of (4) Zodiac Aerospace Service Bulletin locations.html. manufacturing (DMF) code of November MXH–35–241, Revision 2, dated May 19, 2011 (for Bombardier airplanes). Issued in Renton, Washington, on April 10, 2008 (112008 or 11–08) or earlier, and those 2015. with a DMF code of January 2011 (012011 or (m) Alternative Methods of Compliance Jeffrey E. Duven, 01–11) or later; and those having a part (AMOCs) number listed in paragraph 1.A.(4), ‘‘Not Manager, Transport Airplane Directorate, The Manager, Boston Aircraft Certification Aircraft Certification Service. Concerned Equipment,’’ of Zodiac Aerospace Office (ACO) ANE–150, FAA, has the Service Bulletin MXH–35–240, Revision 7, authority to approve AMOCs for this AD, if [FR Doc. 2015–09467 Filed 5–11–15; 8:45 am] dated September 1, 2011, are excluded from requested using the procedures found in 14 BILLING CODE 4910–13–P the inspection and replacement requirements CFR 39.19. In accordance with 14 CFR 39.19, of paragraphs (g) and (h) of this AD, provided send your request to your principal inspector it can be demonstrated that the inflatable or local Flight Standards District Office, as harness has not been replaced on those DEPARTMENT OF HOMELAND appropriate. If sending information directly SECURITY masks with an inflatable harness having a to the ACO, send it to ATTN: Ian Lucas, part number and batch number identified in Aerospace Engineer, Boston ACO, ANE–150, Appendix I of the applicable service FAA, Engine and Propeller Directorate, 12 Coast Guard information specified in paragraph (i)(1) or New England Executive Park, Burlington, (i)(2) of this AD. A review of airplane MA 01803; phone: 781–238–7757; fax: 781– 33 CFR Part 100 delivery or maintenance records is acceptable 238–7170. Before using any approved AMOC, [Docket No. USCG–2011–0595] to make the determination specified in this notify your appropriate principal inspector, paragraph, if the part number and batch or lacking a principal inspector, the manager Special Local Regulation; Annual number of the harness assembly, and the of the local flight standards district office/ DMF code of the mask assembly, can be certificate holding district office. The AMOC Kennewick, Washington, Columbia conclusively determined from that review. approval letter must specifically reference Unlimited Hydroplane Races (1) Zodiac Aerospace Service Bulletin this AD. MXH–35–240, Revision 7, dated September AGENCY: Coast Guard, DHS. 1, 2011 (for all airplanes other than (n) Related Information ACTION: Notice of enforcement of Bombardier airplanes). (1) Refer to Mandatory Continuing regulation. (2) Zodiac Aerospace Service Bulletin Airworthiness Information (MCAI) EASA MXH–35–241, Revision 3, dated June 23, Airworthiness Directive 2011–0090R1, dated SUMMARY: The Coast Guard will enforce 2011 (for Bombardier airplanes). July 13, 2011, for related information. This the special local regulation for the MCAI may be found in the AD docket on the ‘‘Annual Kennewick, Washington, (j) Definition Internet at http://www.regulations.gov/# Columbia Unlimited Hydroplane Races’’ For the purpose of this AD, Bombardier !documentDetail;D=FAA-2012-1107-0003. from 8:30 a.m. to 7:30 p.m. each day, airplanes include airplanes previously (2) Service information identified in this from July 24, 2015 through July 26, manufactured by Canadair or by De AD that is not incorporated by reference is Havilland Canada. available at the addresses specified in 2015. This action is necessary to assist paragraphs (o)(3) and (o)(4) of this AD. in minimizing the inherent dangers (k) Parts Installation Prohibition associated with hydroplane races. As of the effective date of this AD, no (o) Material Incorporated by Reference During the enforcement period, no person may install a flightcrew oxygen mask (1) The Director of the Federal Register person or vessel may enter the regulated regulator having a part number and batch approved the incorporation by reference area without permission from the Sector number on the inflatable harness that is (IBR) of the service information listed in this Columbia River Captain of the Port. found in Appendix I of Zodiac Aerospace paragraph under 5 U.S.C. 552(a) and 1 CFR Service Bulletin MXH–35–240, Revision 7, part 51. DATES: The regulation in 33 CFR dated September 1, 2011 (for all airplanes); (2) You must use this service information 100.1303 will be enforced from 8:30 on any airplane. Operators may determine if as applicable to do the actions required by a.m. until 7:30 p.m. on July 24, 2015 the part number and batch number are not this AD, unless this AD specifies otherwise. through July 26, 2015.

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