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AD. Information may be emailed to: 9-ANM- National Archives and Records FAA, Transport Standards Branch, 1601 [email protected]. Administration (NARA). For information on Lind Avenue SW., Renton, WA. For (2) Before using any approved AMOC, the availability of this material at NARA, call information on the availability of this notify your appropriate principal inspector, 202–741–6030, or go to: http:// material at the FAA, call 425–227–1221. or lacking a principal inspector, the manager www.archives.gov/federal-register/cfr/ibr- of the local flight standards district office/ locations.html. It is also available on the Internet at certificate holding district office. http://www.regulations.gov by searching (3) An AMOC that provides an acceptable Issued in Renton, Washington, on for and locating Docket No. FAA–2016– level of safety may be used for any repair, November 3, 2017. 9568. modification, or alteration required by this Jeffrey E. Duven, AD if it is approved by the Boeing Director, System Oversight Division, Aircraft Examining the AD Docket Commercial Airplanes Organization Certification Service. You may examine the AD docket on Designation Authorization (ODA) that has [FR Doc. 2017–24624 Filed 11–14–17; 8:45 am] the Internet at http:// been authorized by the Manager, Los Angeles ACO Branch, to make those findings. To be BILLING CODE 4910–13–P www.regulations.gov by searching for approved, the repair method, modification and locating Docket No. FAA–2016– deviation, or alteration deviation must meet 9568; or in person at the Docket the certification basis of the airplane, and the DEPARTMENT OF TRANSPORTATION Management Facility between 9 a.m. approval must specifically refer to this AD. and 5 p.m., Monday through Friday, (4) Except as required by paragraph (h)(2) Federal Administration except Federal holidays. The AD docket of this AD: For service information that contains this AD, the regulatory contains steps that are labeled as RC, the 14 CFR Part 39 provisions of paragraphs (i)(4)(i) and (i)(4)(ii) evaluation, any comments received, and of this AD apply. [Docket No. FAA–2016–9568; Product other information. The street address for (i) The steps labeled as RC, including Identifier 2016–NM–150–AD; Amendment the Docket Office (telephone 800–647– substeps under an RC step and any figures 39–19077; AD 2017–21–06] 5527) is Docket Management Facility, identified in an RC step, must be done to U.S. Department of Transportation, comply with the AD. If a step or substep is RIN 2120–AA64 Docket Operations, M–30, West labeled ‘‘RC Exempt,’’ then the RC Building Ground Floor, Room W12–140, requirement is removed from that step or Airworthiness Directives; 328 Support Services GmbH ( 1200 New Jersey Avenue SE., substep. An AMOC is required for any Washington, DC 20590. deviations to RC steps, including substeps Previously Held by AvCraft Aerospace and identified figures. GmbH; Fairchild Dornier GmbH; FOR FURTHER INFORMATION CONTACT: (ii) Steps not labeled as RC may be Dornier Luftfahrt GmbH) Airplanes Todd Thompson, Aerospace Engineer, deviated from using accepted methods in International Section, Transport accordance with the operator’s maintenance AGENCY: Federal Aviation Standards Branch, FAA, 1601 Lind or inspection program without obtaining Administration (FAA), Department of Avenue SW., Renton, WA 98057–3356; approval of an AMOC, provided the RC steps, Transportation (DOT). telephone 425–227–1175; fax 425–227– including substeps and identified figures, can still be done as specified, and the airplane ACTION: Final rule. 1149. can be put back in an airworthy condition. SUPPLEMENTARY INFORMATION: SUMMARY: We are adopting a new (j) Related Information airworthiness directive (AD) for certain Discussion For more information about this AD, 328 Support Services GmbH Model We issued a supplemental notice of contact Payman Soltani, Aerospace Engineer, 328–100 and Model 328–300 airplanes. proposed rulemaking (SNPRM) to Airframe Section, FAA, Los Angeles ACO This AD was prompted by reports of amend 14 CFR part 39 by adding an AD Branch, 3960 Paramount Boulevard, broken bonding wires of certain fuel Lakewood, CA 90712–4137; phone: 562–627– that would apply to certain 328 Support line clamps. This AD requires repetitive Services GmbH Model 328–100 and 5313; fax: 562–627–5210; email: inspections of certain fuel line clamps [email protected]. Model 328–300 airplanes. The SNPRM for discrepancies; repetitive inspections published in the Federal Register on (k) Material Incorporated by Reference of certain parts for chafing marks; and June 30, 2017 (82 FR 29786) (‘‘the (1) The Director of the Federal Register replacement of any discrepant parts. SNPRM’’). We preceded the SNPRM approved the incorporation by reference This AD also includes an optional with a notice of proposed rulemaking (IBR) of the service information listed in this modification, which is a terminating paragraph under 5 U.S.C. 552(a) and 1 CFR (NPRM) that published in the Federal action for the inspections. We are Register on January 11, 2017 (82 FR part 51. issuing this AD to address the unsafe (2) You must use this service information 3217) (‘‘the NPRM’’). The NPRM as applicable to do the actions required by condition on these products. proposed to require a one-time this AD, unless the AD specifies otherwise. DATES: This AD is effective December inspection of certain fuel line clamps for (i) Boeing Alert Service Bulletin 737– 20, 2017. discrepancies, and replacement of any 57A1335, dated May 24, 2017. The Director of the Federal Register discrepant clamps. The NPRM was (ii) Reserved. approved the incorporation by reference prompted by reports of broken bonding (3) For service information identified in of certain publications listed in this AD this AD, contact Boeing Commercial wires of certain fuel line clamps. The Airplanes, Attention: Contractual & Data as of December 20, 2017. SNPRM proposed to expand the Services (C&DS), 2600 Westminster Blvd., ADDRESSES: For service information applicability and require repetitive MC 110–SK57, Seal Beach, CA 90740–5600; identified in this final rule, contact 328 inspections of certain fuel line clamps telephone 562–797–1717; Internet https:// Support Services GmbH, Global Support for discrepancies; repetitive inspections www.myboeingfleet.com. Center, P.O. Box 1252, D–82231 of certain jet fuel pumps, connection (4) You may view this service information Wessling, Federal Republic of ; parts, and fuel lines for chafing marks; at the FAA, Transport Standards Branch, 1601 Lind Avenue SW., Renton, WA. For telephone +49 8153 88111 6666; fax +49 a measurement of the depth of the information on the availability of this 8153 88111 6565; email gsc.op@ chafing marks on affected parts; and material at the FAA, call 425–227–1221. 328support.de; Internet http:// replacement of any discrepant parts. We (5) You may view this service information www.328support.de. You may view this are issuing this AD to prevent the loss that is incorporated by reference at the referenced service information at the of bonding function, which, in

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combination with a lightning strike, AD 2016–0169, which is superseded, and public interest require adopting this AD could create a source of ignition in a requires repetitive inspections of all with the changes described previously fuel tank, possibly resulting in a fire or Hydraflow fuel line clamps [i.e., a general and minor editorial changes. We have explosion and consequent loss of the visual inspection of all Hydraflow fuel line determined that these minor changes: airplane. clamps for worn and missing bonding wires; • a general visual inspection of the jet pump Are consistent with the intent that The European Aviation Safety Agency outlet, connection part, and fuel lines for was proposed in the SNPRM for (EASA), which is the Technical Agent chafing marks; and a measurement of the correcting the unsafe condition; and for the Member States of the European depth of the chafing marks on affected parts] • Do not add any additional burden Union, has issued EASA Airworthiness and continued reporting to the TC Holder. upon the public than was already Directive 2017–0016, dated January 31, You may examine the MCAI in the proposed in the SNPRM. 2017 (referred to after this as the AD docket on the Internet at http:// Mandatory Continuing Airworthiness We also determined that these www.regulations.gov by searching for Information, or ‘‘the MCAI’’), to correct changes will not increase the economic and locating Docket No. FAA–2016– an unsafe condition for certain 328 burden on any operator or increase the 9568. Support Services GmbH Model 328–100 scope of this AD. and Model 328–300 airplanes. The Comments Related Service Information Under 1 MCAI states: We gave the public the opportunity to CFR Part 51 Occurrences of broken bonding wires of participate in developing this AD. The 328 Support Services GmbH has the fuel line clamps have been reported on following presents the comment issued Alert Service Bulletin ASB–328J– –100 and Dornier 328–300 received on the SNPRM and the FAA’s aeroplanes equipped with fuel line clamps 28–018, Revision 2, dated December 12, Part Number (P/N) 14C02–10A, or P/N response to that comment. 2016; and Alert Service Bulletin ASB– 14C02–12A, or P/N 14C02–16A. The affected Request To Incorporate a New Optional 328–28–041, Revision 2, dated fuel line clamps have been installed in Terminating Action December 12, 2016. The service accordance with the instructions of Dornier information describes procedures for a 328 Service Bulletin (SB) SB–328–28–490 or One commenter, Christoph general visual inspection of all SB–328J–28–241, as applicable, to reduce Thallmayr, stated that 328 Support Hydraflow fuel line clamps for worn occurrences of fuel line chafing. Services has released Service Bulletin The results of the investigation did not and missing bonding wires; a general SB–328–28–553, Revision 1, dated July visual inspection of the jet pump outlet, identify design deficiency or production 10, 2017; and Service Bulletin SB–328J– failure of the fuel line clamps. It is assumed connection part, and fuel lines for that the chafing and breaking of the bonding 28–322, Revision 1, dated July 10, 2017. chafing marks; a measurement of the wires are caused either by excessive The commenter noted that this service depth of the chafing marks; and vibration, misalignment, excessive information contains instructions for a replacement of discrepant parts. These installation tolerances or mistakes on modification, which is considered a documents are distinct since they apply installation or a combination thereof. terminating action to the inspections to different airplane models. This condition, if not detected and specified in the SNPRM. The 328 Support Services GmbH has also corrected, could lead to the loss of bonding commenter requested that we function and, in combination with a issued Service Bulletin SB–328–28–553, incorporate the terminating action and lightning strike, create a source of ignition in Revision 1, dated July 10, 2017; and applicable service information into the a fuel tank, possibly resulting in a fire or Service Bulletin SB–328J–28–322, final rule. explosion and consequent loss of the Revision 1, dated July 10, 2017. The aeroplane. We agree with the commenter’s To address the unsafe condition, 328 request. We have added paragraph (l) to service information describes Support Services issued Alert SB (ASB) this AD to allow operators to procedures for modifying the wing tank ASB–328–28–041 (for Dornier 328–100) and accomplish an optional terminating distribution system. These documents ASB–328J–28–018 (for Dornier 328–300), modification, which must be done in are distinct since they apply to different providing inspection instructions. accordance with 328 Support Services airplane models. Consequently, EASA issued AD 2016–0169 This service information is reasonably [which corresponds to the NPRM] to require GmbH Service Bulletin SB–328–28–553, a one-time inspection of the fuel line clamps Revision 1, dated July 10, 2017; or available because the interested parties and, depending on findings, replacement. Service Bulletin SB–328J–28–322, have access to it through their normal That [EASA] AD also required the reporting Revision 1, dated July 10, 2017; as course of business or by the means of all inspection results to the design applicable. We also have redesignated identified in the ADDRESSES section. approval holder. subsequent paragraphs accordingly. Since that [EASA] AD was issued, it was Costs of Compliance determined that repetitive inspections are Conclusion We estimate that this AD affects 25 necessary and 328 Support Services revised the applicable ASBs accordingly. We reviewed the relevant data, airplanes of U.S. registry. For the reason described above, this considered the comment received, and We estimate the following costs to [EASA] AD retains the requirements of EASA determined that air safety and the comply with this AD:

ESTIMATED COSTS

Cost on U.S. Action Labor cost Parts cost Cost per product operators

Inspections/measurement .. 8 work-hours × $85 per hour = $680 $0 $680 per inspection cycle $17,000 per inspection per inspection cycle. cycle. Reporting ...... 1 work hour × $85 per hour = $85 per 0 $85 per inspection cycle .. $2,125 per inspection inspection cycle. cycle.

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ESTIMATED COSTS FOR OPTIONAL ACTIONS

Cost per Action Labor cost Parts cost product

Modification ...... Up to 12 work-hours × $85 per hour = $1,020 ...... Up to $2,800 ...... Up to $3,820.

We estimate the following costs to do required inspections and measurement. number of aircraft that might need these any necessary replacements that would We have no way of determining the replacements: be required based on the results of the

ON-CONDITION COSTS

Cost per Action Labor cost Parts cost product

Replacement ...... Up to 1 work-hour × $85 per hour = $85 ...... Up to $588 ...... Up to $673.

Paperwork Reduction Act products identified in this rulemaking the FAA amends 14 CFR part 39 as A federal agency may not conduct or action. follows: This AD is issued in accordance with sponsor, and a person is not required to PART 39—AIRWORTHINESS respond to, nor shall a person be subject authority delegated by the Executive DIRECTIVES to penalty for failure to comply with a Director, Aircraft Certification Service, collection of information subject to the as authorized by FAA Order 8000.51C. ■ In accordance with that order, issuance 1. The authority citation for part 39 requirements of the Paperwork continues to read as follows: Reduction Act unless that collection of of ADs is normally a function of the information displays a current valid Compliance and Airworthiness Authority: 49 U.S.C. 106(g), 40113, 44701. Division, but during this transition OMB control number. The control § 39.13 [Amended] number for the collection of information period, the Executive Director has ■ required by this AD is 2120–0056. The delegated the authority to issue ADs 2. The FAA amends § 39.13 by adding paperwork cost associated with this AD applicable to transport category the following new airworthiness has been detailed in the Costs of airplanes to the Director of the System directive (AD): Compliance section of this document Oversight Division. 2017–21–06 328 Support Services GmbH and includes time for reviewing Regulatory Findings (Type Certificate previously held by instructions, as well as completing and AvCraft Aerospace GmbH; Fairchild reviewing the collection of information. We determined that this AD will not Dornier GmbH; Dornier Luftfahrt Therefore, all reporting associated with have federalism implications under GmbH): Amendment 39–19077; Docket Executive Order 13132. This AD will No. FAA–2016–9568; Product Identifier this AD is mandatory. Comments 2016–NM–150–AD. concerning the accuracy of this burden not have a substantial direct effect on and suggestions for reducing the burden the States, on the relationship between (a) Effective Date should be directed to the FAA at 800 the national government and the States, This AD is effective December 20, 2017. or on the distribution of power and Independence Ave. SW., Washington, (b) Affected ADs DC 20591, ATTN: Information responsibilities among the various Collection Clearance Officer, AES–200. levels of government. None. For the reasons discussed above, I Authority for This Rulemaking (c) Applicability certify that this AD: This AD applies to 328 Support Services Title 49 of the United States Code 1. Is not a ‘‘significant regulatory GmbH (Type Certificate Previously Held by specifies the FAA’s authority to issue action’’ under Executive Order 12866; AvCraft Aerospace GmbH; Fairchild Dornier rules on aviation safety. Subtitle I, 2. Is not a ‘‘significant rule’’ under the GmbH; Dornier Luftfahrt GmbH) airplanes, section 106, describes the authority of DOT Regulatory Policies and Procedures certificated in any category, as identified in the FAA Administrator. ‘‘Subtitle VII: (44 FR 11034, February 26, 1979); paragraphs (c)(1) and (c)(2) of this AD. Aviation Programs,’’ describes in more 3. Will not affect intrastate aviation in (1) Model 328–100 airplanes, all serial detail the scope of the Agency’s Alaska; and numbers. authority. 4. Will not have a significant (2) Model 328–300 airplanes, all serial numbers. We are issuing this rulemaking under economic impact, positive or negative, the authority described in ‘‘Subtitle VII, on a substantial number of small entities (d) Subject Part A, Subpart III, Section 44701: under the criteria of the Regulatory Air Transport Association (ATA) of General requirements.’’ Under that Flexibility Act. America Code 28, Fuel. section, Congress charges the FAA with (e) Reason promoting safe flight of civil aircraft in List of Subjects in 14 CFR Part 39 air commerce by prescribing regulations Air transportation, Aircraft, Aviation This AD was prompted by reports of for practices, methods, and procedures broken bonding wires of certain fuel line safety, Incorporation by reference, clamps. We are issuing this AD to prevent the the Administrator finds necessary for Safety. loss of bonding function, which, in safety in air commerce. This regulation Adoption of the Amendment combination with a lightning strike, could is within the scope of that authority create a source of ignition in a fuel tank, because it addresses an unsafe condition Accordingly, under the authority possibly resulting in a fire or explosion and that is likely to exist or develop on delegated to me by the Administrator, consequent loss of the airplane.

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(f) Compliance (1) 328 Support Services GmbH Alert this collection of information is estimated to Comply with this AD within the Service Bulletin ASB–328–28–041, dated be approximately 5 minutes per response, compliance times specified, unless already June 14, 2016. including the time for reviewing instructions, done. (2) 328 Support Services GmbH Alert completing and reviewing the collection of Service Bulletin ASB–328–28–041, Revision information. All responses to this collection (g) Repetitive Inspections 1, dated October 13, 2016. of information are mandatory. Comments Within 6 months after the effective date of (3) 328 Support Services GmbH Alert concerning the accuracy of this burden and this AD, do a general visual inspection of all Service Bulletin ASB–328J–28–018, dated suggestions for reducing the burden should Hydraflow fuel line clamps for worn and June 3, 2016. be directed to the FAA at: 800 Independence missing bonding wires; do a general visual (4) 328 Support Services GmbH Alert Ave. SW., Washington, DC 20591, Attn: inspection of the jet pump outlet, connection Service Bulletin ASB–328J–28–018, Revision Information Collection Clearance Officer, part, and fuel lines for chafing marks; and for 1, dated October 13, 2016. AES–200. parts with chafing marks, before further (k) Clamp Replacement: No Terminating (n) Related Information flight, measure the depth of the chafing Action if Clamp Replacement is Done marks; in accordance with the (1) Refer to Mandatory Continuing Replacement of clamps as required by Accomplishment Instructions of the service Airworthiness Information (MCAI) EASA paragraph (h) of this AD does not constitute information specified in paragraph (g)(1) or terminating action for the repetitive Airworthiness Directive 2017–0016, dated (g)(2) of this AD, as applicable. Repeat the inspections required by paragraph (g) of this January 31, 2017, for related information. inspections thereafter at intervals not to AD for that airplane. This MCAI may be found in the AD docket exceed 2,500 flight hours. on the Internet at http://www.regulations.gov (1) 328 Support Services GmbH Alert (l) Optional Terminating Modification by searching for and locating Docket No. Service Bulletin ASB–328–28–041, Revision Modification of the wing tank distribution FAA–2016–9568. 2, dated December 12, 2016 (for Model 328– system, in accordance with the (2) For more information about this AD, 100 airplanes). Accomplishment Instructions of 328 Support contact Todd Thompson, Aerospace (2) 328 Support Services GmbH Alert Services GmbH Service Bulletin SB–328–28– Engineer, International Section, Transport Service Bulletin ASB–328J–28–018, Revision 553, Revision 1, dated July 10, 2017; or 328 Standards Branch, FAA, 1601 Lind Avenue 2, dated December 12, 2016 (for Model 328– Support Services GmbH Service Bulletin SB– SW., Renton, WA 98057–3356; telephone 300 airplanes). 328J–28–322, Revision 1, dated July 10, 2017, 425–227–1175; fax 425–227–1149. (h) Replacement of Parts as applicable, terminates the actions required (3) Service information identified in this by paragraphs (g), (h), and (i) of this AD for AD that is not incorporated by reference is (1) If any worn or missing bonding wires the modified airplane. available at the addresses specified in are found during any inspection required by paragraphs (o)(3) and (o)(4) of this AD. paragraph (g) of this AD, before further flight, (m) Other FAA AD Provisions replace all affected clamps, in accordance The following provisions also apply to this (o) Material Incorporated by Reference with the Accomplishment Instructions of the AD: (1) The Director of the Federal Register service information specified in paragraph (1) Alternative Methods of Compliance approved the incorporation by reference (g)(1) or (g)(2) of this AD, as applicable. (AMOCs): The Manager, International (IBR) of the service information listed in this (2) If, during any inspection required by Section, Transport Standards Branch, FAA, paragraph under 5 U.S.C. 552(a) and 1 CFR paragraph (g) of this AD, any chafing depth has the authority to approve AMOCs for this part 51. is found that is more than the replacement AD, if requested using the procedures found (2) You must use this service information limits specified in the Accomplishment in 14 CFR 39.19. In accordance with 14 CFR as applicable to do the actions required by Instructions of the service information 39.19, send your request to your principal this AD, unless this AD specifies otherwise. specified in paragraph (g)(1) or (g)(2) of this inspector or local Flight Standards District (i) 328 Support Services GmbH Alert AD, as applicable, before further flight, Office, as appropriate. If sending information Service Bulletin ASB–328–28–041, Revision replace all affected parts, in accordance with directly to the International Section, send it 2, dated December 12, 2016. the Accomplishment Instructions of the to the attention of the person identified in (ii) 328 Support Services GmbH Alert service information specified in paragraph paragraph (n)(2) of this AD. Information may Service Bulletin ASB–328J–28–018, Revision (g)(1) or (g)(2) of this AD, as applicable. be emailed to: 9-ANM-116-AMOC- 2, dated December 12, 2016. [email protected]. Before using any (i) Reporting (iii) 328 Support Services GmbH Service approved AMOC, notify your appropriate At the applicable time specified in Bulletin SB–328–28–553, Revision 1, dated principal inspector, or lacking a principal July 10, 2017. paragraph (i)(1) or (i)(2) of this AD, report the inspector, the manager of the local flight (iv) 328 Support Services GmbH Service inspection results, positive or negative, to standards district office/certificate holding Bulletin SB–328J–28–322, Revision 1, dated 328 Support Services, GmbH, Global Support district office. July 10, 2017. Center, P.O. Box 1252, D–82231 Wessling, (2) Contacting the Manufacturer: For any (3) For service information identified in Federal Republic of Germany; fax +49 8153 requirement in this AD to obtain corrective this AD, contact 328 Support Services GmbH, 88111 6565; email [email protected]. actions from a manufacturer, the action must The report must include findings on fuel line be accomplished using a method approved Global Support Center, P.O. Box 1252, D– clamps, aircraft serial number, total flight by the Manager, International Section, 82231 Wessling, Federal Republic of hours, and total landings. Transport Standards Branch, FAA; or the Germany; telephone +49 8153 88111 6666; (1) If the inspection was done on or after European Aviation Safety Agency (EASA); or fax +49 8153 88111 6565; email gsc.op@ the effective date of this AD: Submit the 328 Support Services GmbH’s EASA Design 328support.de; Internet http:// report within 30 days after the inspection. Organization Approval (DOA). If approved by www.328support.de. (2) If the inspection was done before the the DOA, the approval must include the (4) You may view this service information effective date of this AD: Submit the report DOA-authorized signature. at the FAA, Transport Standards Branch, within 30 days after the effective date of this (3) Reporting Requirements: A federal 1601 Lind Avenue SW., Renton, WA. For AD. agency may not conduct or sponsor, and a information on the availability of this person is not required to respond to, nor material at the FAA, call 425–227–1221. (j) Credit for Previous Actions shall a person be subject to a penalty for (5) You may view this service information This paragraph provides credit for the failure to comply with a collection of that is incorporated by reference at the initial inspection, parts replacement, and information subject to the requirements of National Archives and Records initial report required by paragraphs (g), (h), the Paperwork Reduction Act unless that Administration (NARA). For information on and (i) of this AD, if those actions were collection of information displays a current the availability of this material at NARA, call performed before the effective date of this AD valid OMB Control Number. The OMB 202–741–6030, or go to: http:// using the service information specified in Control Number for this information www.archives.gov/federal-register/cfr/ibr- paragraphs (j)(1) through (j)(4) of this AD. collection is 2120–0056. Public reporting for locations.html.

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Issued in Renton, Washington, on October www.regulations.gov by searching for addressed, this condition may affect 11, 2017. and locating Docket No. FAA–2017– continued safe flight and landing. Jeffrey E. Duven, 0528; or in person at the Docket Due to similarities in the air data systems, similar events could happen on Bombardier Director, System Oversight Division, Aircraft Management Facility between 9 a.m. Inc. CL–600–2B16 aeroplanes. Certification Service. and 5 p.m., Monday through Friday, This [Canadian] AD mandates the [FR Doc. 2017–22561 Filed 11–14–17; 8:45 am] except Federal holidays. The AD docket incorporation of Aircraft Flight Manual BILLING CODE 4910–13–P contains this AD, the regulatory (AFM) procedures to guide the crew to evaluation, any comments received, and stabilize the aeroplanes airspeed and attitude other information. The street address for for continued safe flight and landing. DEPARTMENT OF TRANSPORTATION the Docket Office (telephone 800–647– You may examine the MCAI in the 5527) is Docket Management Facility, Federal Aviation Administration AD docket on the Internet at http:// U.S. Department of Transportation, www.regulations.gov by searching for Docket Operations, M–30, West 14 CFR Part 39 and locating Docket No. FAA–2017– Building Ground Floor, Room W12–140, 0528. [Docket No. FAA–2017–0528; Product 1200 New Jersey Avenue SE., Identifier 2017–NM–028–AD; Amendment Washington, DC 20590. Comments 39–19091; AD 2017–22–11] FOR FURTHER INFORMATION CONTACT: We gave the public the opportunity to RIN 2120–AA64 Assata Dessaline, Aerospace Engineer, participate in developing this AD. We Avionics and Administrative Services considered the comment received. Airworthiness Directives; Bombardier, Section, FAA, New York ACO Branch, Inc., Airplanes Request To Clarify Introduction of 1600 Stewart Avenue, Suite 410, ‘‘Unreliable Airspeed’’ AFM Procedures Westbury, NY 11590; telephone: 516– AGENCY: Federal Aviation The commenter, Marjolaine Bourget, 228–7301; fax: 516–794–5531. Administration (FAA), Department of stated that the ‘‘unreliable airspeed’’ Transportation (DOT). SUPPLEMENTARY INFORMATION: procedures, while provided in the AFM ACTION: Final rule. Discussion revisions identified in the proposed requirements, were actually introduced SUMMARY: We are adopting a new We issued a notice of proposed airworthiness directive (AD) for certain in the previous revision of the identified rulemaking (NPRM) to amend 14 CFR Bombardier, Inc., Model CL–600–2B16 AFMs. part 39 by adding an AD that would From this statement, we infer that the (CL–604 Variant) airplanes. This AD apply to certain Bombardier, Inc., Model commenter was requesting that we add was prompted by reports of in-service CL–600–2B16 (CL–604 Variant) a statement that the ‘‘unreliable incidents regarding the loss of all air airplanes. The NPRM published in the airspeed’’ procedures were introduced data system information provided to the Federal Register on June 5, 2017 (82 FR in the previous revision of the identified flightcrew. This AD requires revising 25746) (‘‘the NPRM’’). The NPRM was AFMs. The commenter provided no the airplane flight manual (AFM) to prompted by reports of in-service justification for this request. We provide ‘‘Unreliable Airspeed’’ incidents regarding the loss of all air acknowledge that the ‘‘unreliable procedures to the flightcrew to stabilize data system information provided to the airspeed’’ procedures were introduced the airplane’s airspeed and attitude for flightcrew. The NPRM proposed to in an earlier revision of the identified continued safe flight and landing. We require revising the AFM to provide AFMs. We have revised this AD by are issuing this AD to address the unsafe ‘‘Unreliable Airspeed’’ procedures to the adding new paragraph (h) to this AD condition on these products. flightcrew to stabilize the airplane’s that provides credit to operators for DATES: This AD is effective December airspeed and attitude for continued safe previously completing the actions 20, 2017. flight and landing. We are issuing this required by paragraph (g) of this AD if The Director of the Federal Register AD to provide the flightcrew with they used the applicable previous AFM approved the incorporation by reference procedures for ‘‘Unreliable Airspeed’’ revision. of certain publications listed in this AD that stabilize the airplane’s airspeed and as of December 20, 2017. Conclusion attitude for continued safe flight and ADDRESSES: For service information landing. We reviewed the relevant data, identified in this final rule, contact Transport Civil Aviation considered the comment received, and Bombardier, Inc., 400 Coˆte-Vertu Road (TCCA), which is the aviation authority determined that air safety and the West, Dorval, Que´bec H4S 1Y9, Canada; for Canada, has issued Canadian public interest require adopting this AD telephone: 514–855–5000; fax: 514– Airworthiness Directive CF–2017–01, as proposed, except for minor editorial 855–7401; email: thd.crj@ dated January 6, 2017 (referred to after changes. We have determined that these aero.bombardier.com; Internet: http:// this as the Mandatory Continuing minor changes: www.bombardier.com. You may view • Airworthiness Information, or ‘‘the Are consistent with the intent that this referenced service information at MCAI’’), to correct an unsafe condition was proposed in the NPRM for the FAA, Transport Standards Branch, for certain Bombardier, Inc., Model CL– correcting the unsafe condition; and 1601 Lind Avenue SW., Renton, WA. • Do not add any additional burden 600–2B16 (CL–604 Variant) airplanes. For information on the availability of upon the public than was already The MCAI states: this material at the FAA, call 425–227– proposed in the NPRM. 1221. It is also available on the Internet A number of in-service incidents have been reported on CL–600–2C10 aeroplanes Related Service Information Under 1 at http://www.regulations.gov by regarding a loss of all air data information CFR Part 51 searching for and locating Docket No. provided to the crew. The air data FAA–2017–0528. information was recovered as the aeroplane Bombardier, Inc., has issued Unreliable Airspeed, of Section 03–15, Examining the AD Docket descended to lower altitudes. An investigation determined that the root cause Instruments System, of Chapter 3, You may examine the AD docket on in both events was high altitude icing (ice Emergency Procedures, of the following the Internet at http:// crystal contamination). If not recognized and AFMs:

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