14679

Rules and Regulations Federal Register Vol. 77, No. 49

Tuesday, March 13, 2012

This section of the FEDERAL REGISTER The Director of the Federal Register This has been seen in cases of dispatch contains regulatory documents having general approved the incorporation by reference with one thrust reverser inoperative; and applicability and legal effect, most of which of certain publications listed in this AD —One thrust lever moved in forward position are keyed to and codified in the Code of as of April 17, 2012. after landing, usually when bringing the thrust lever back from REVERSE to IDLE. Federal Regulations, which is published under The Director of the Federal Register 50 titles pursuant to 44 U.S.C. 1510. These thrust asymmetry conditions, if not approved the incorporation by reference corrected, could result in loss of control of The Code of Federal Regulations is sold by of a certain publication listed in this AD the aeroplane during landing. the Superintendent of Documents. Prices of as of June 24, 2002 (67 FR 35425, May This [EASA] AD supersedes DGAC France new books are listed in the first FEDERAL 20, 2002). AD 94–211–059(B) R2 and 96–079–079(B) REGISTER issue of each week. ADDRESSES: You may examine the AD [which corresponds to FAA AD 97–22–13 (62 docket on the Internet at http:// FR 58891, October 31, 1997], mandating www.regulations.gov or in person at the Aircraft Flight Manual Temporary Revision DEPARTMENT OF TRANSPORTATION reference 9.99.99/20 and the installation of U.S. Department of Transportation, FWC P/N 350E017248685 (H1D2) as Federal Aviation Administration Docket Operations, M–30, West terminating action for both ADs. Building Ground Floor, Room W12–140, This [EASA] AD retains the requirements 14 CFR Part 39 1200 New Jersey Avenue SE., of DGAC France AD 2000–320–147(B) [which Washington, DC. corresponds to FAA AD 2002–10–06 (67 FR [Docket No. FAA–2011–1087; Directorate FOR FURTHER INFORMATION CONTACT: Tim 35425, May 20, 2002)], which is also superseded, which required the installation Identifier 2011–NM–032–AD; Amendment Dulin, Aerospace Engineer, 39–16967; AD 2012–04–11] of FWC P/N 350E017271616 (H1E2). International Branch, ANM–116, For the reasons described above, this RIN 2120–AA64 Transport Airplane Directorate, FAA, [EASA] AD requires the replacement of both 1601 Lind Avenue SW., Renton, FWC units with minimum FWC P/N Airworthiness Directives; Airbus Washington 98057–3356; telephone 350E053020909 (H2F5) units, introducing Airplanes (425) 227–2141; fax (425) 227–1149. ‘‘Enhanced RETARD’’ logic. AGENCY: Federal Aviation SUPPLEMENTARY INFORMATION: You may obtain further information by examining the MCAI in the AD docket. Administration (FAA), Department of Discussion Transportation (DOT). We issued a notice of proposed Comments ACTION: Final rule. rulemaking (NPRM) to amend 14 CFR We gave the public the opportunity to SUMMARY: We are superseding two part 39 to include an AD that would participate in developing this AD. We existing airworthiness directives (AD). apply to the specified products. That considered the comment received. The One existing AD is for Airbus Model NPRM was published in the Federal commenter supports the NPRM (76 FR A319, A320, and A321 series airplanes Register on October 19, 2011 (76 FR 64854, October 19, 2011). without Airbus modification 26017. 64854), and proposed to supersede AD Explanation of Changes Made to This That AD currently requires replacing the 97–22–13, Amendment 39–10185 (62 AD flight warning computers (FWCs). The FR 58891, October 31, 1997); and AD We have redesignated paragraph (g) other existing AD is for Airbus Model 2002–10–06, Amendment 39–12752 (67 and Note 1 of the NPRM (76 FR 64854, A320 and A321 series airplanes on FR 35425, May 20, 2002). That NPRM October 19, 2011) to paragraphs (g)(1) which Airbus modification 24612 or proposed to correct an unsafe condition and (g)(2) in this AD, respectively. We Airbus Service Bulletin A320–31–1080 for the specified products. The MCAI have revised certain headings has not been accomplished. That states: throughout this AD. We have also existing AD currently requires revising Following in-service experience, analyses revised the wording in paragraphs (g)(2) the limitations section of the airplane of the failure to follow procedure or heed and (j) of this AD; this change has not flight manual. This new AD requires existing cockpit cues were conducted to changed the intent of those paragraphs. replacing both FWC units with certain assess the consequences of mismanagement FWC units. This AD was prompted by of thrust levers during landing. Conclusion in-service events of thrust lever The investigation results identified the need for improvements in the identification We reviewed the available data, mismanagement and a manufacturer of throttle mis-positioning and so providing including the comment received, and analysis on the failure to follow further opportunity for the flight crew to determined that air safety and the procedure or heed existing cockpit cues. identify an incorrect thrust lever public interest require adopting the AD The analysis of the thrust lever configuration and to correct this. For the with the changes described previously management issue showed two A320 family of aeroplanes this being IDLE or and minor editorial changes. We have categories of scenarios that could lead to REVERSE, which is necessary to enable determined that these minor changes: thrust asymmetry during landing, with ground spoiler (G/S) extension and auto- • brake (A/BRK) functions. In addition, the Are consistent with the intent that controllability and deceleration was proposed in the NPRM (76 FR consequences. We are issuing this AD to analysis of the thrust lever management issue shows two categories of scenarios that could 64854, October 19, 2011) for correcting prevent thrust asymmetry conditions lead to thrust asymmetry during landing with the unsafe condition; and which could result in loss of control of controllability and deceleration • Do not add any additional burden the airplane during landing. consequences: upon the public than was already DATES: This AD becomes effective April —One thrust lever kept in forward thrust proposed in the NPRM (76 FR 64854, 17, 2012. when the other is put in IDLE or REVERSE. October 19, 2011).

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Costs of Compliance 2. Is not a ’’significant rule’’ under the (c) Applicability We estimate that this AD will affect DOT Regulatory Policies and Procedures This AD applies to Airbus Model A318– about 729 products of U.S. registry. The (44 FR 11034, February 26, 1979); 111, –112, –121, and –122 airplanes; Model actions that are required by AD 2002– 3. Will not affect intrastate aviation in A319–111, –112, –113, –114, –115, –131, Alaska; and –132, and –133 airplanes; Model A320–111, 10–06, Amendment 39–12752 (67 FR –211, –212, –214, –231, –232, and –233 35425, May 20, 2002) and retained in 4. Will not have a significant airplanes; and Model A321–111, –112, –131, this AD take about 7 work-hours per economic impact, positive or negative, –211, –212, –213, –231, and –232 airplanes; product, at an average labor rate of $85 on a substantial number of small entities certificated in any category; all serial per work hour. Required parts would under the criteria of the Regulatory numbers; if equipped with a flight warning cost about $0 per product. Where the Flexibility Act. computer (FWC) with a part number (P/N) service information lists required parts We prepared a regulatory evaluation listed in table 1 of this AD. costs that are covered under warranty, of the estimated costs to comply with we have assumed that there will be no this AD and placed it in the AD docket. TABLE 1—LIST OF FWC PART charge for these parts. As we do not NUMBERS AFFECTED BY THIS AD control warranty coverage for affected Examining the AD Docket parties, some parties may incur costs You may examine the AD docket on FWC Part No. higher than estimated here. Based on the Internet at http:// 350E≤017238484 (H1D1) these figures, the estimated cost of the www.regulations.gov; or in person at the 350E≤016187171 (C5) currently required actions is $595 per Docket Operations office between 9 a.m. 350E≤017248685 (H1D2) product. and 5 p.m., Monday through Friday, 350E≤017251414 (H1E1) We estimate that it would take about except Federal holidays. The AD docket 350E≤017271616 (H1E2) 4 work-hours per product to comply contains the NPRM (76 FR 64857, 350E≤018291818 (H1E3CJ) ≤ with the new basic requirements of this October 19, 2011), the regulatory 350E 018301919 (H1E3P) 350E≤018312020 (H1E3Q) AD. The average labor rate is $85 per evaluation, any comments received, and work-hour. Required parts would cost 350E≤053020202 (H2E2) other information. The street address for 350E≤053020303 (H2E3) about $0 per product. Based on these the Docket Operations office (telephone ≤ figures, we estimate the cost of this AD 350E 053020404 (H2E4) (800) 647–5527) is in the ADDRESSES 350E≤053020606 (H2F2) on U.S. operators to be $247,860, or section. Comments will be available in 350E≤053020707 (H2F3) $340 per product. the AD docket shortly after receipt. 350E≤053021010 (H2F3P) 350E≤053020808 (H2F4) Authority for This Rulemaking List of Subjects in 14 CFR Part 39 Title 49 of the United States Code (d) Subject specifies the FAA’s authority to issue Air transportation, Aircraft, Aviation rules on aviation safety. Subtitle I, safety, Incorporation by reference, Air Transport Association (ATA) of Safety. America Code 31: Indicating and Recording section 106, describes the authority of Systems. the FAA Administrator. ‘‘Subtitle VII: Adoption of the Amendment Aviation Programs,’’ describes in more (e) Reason detail the scope of the Agency’s Accordingly, under the authority This AD was prompted by in-service authority. delegated to me by the Administrator, events of thrust lever mismanagement and a We are issuing this rulemaking under the FAA amends 14 CFR part 39 as manufacturer analysis on the failure to follow the authority described in ‘‘Subtitle VII, follows: procedure or heed existing cockpit cues. The Part A, Subpart III, Section 44701: analysis of the thrust lever management issue PART 39—AIRWORTHINESS General requirements.’’ Under that showed two categories of scenarios that DIRECTIVES could lead to thrust asymmetry during section, Congress charges the FAA with landing, with controllability and deceleration promoting safe flight of civil aircraft in ■ 1. The authority citation for part 39 consequences. We are issuing this AD to air commerce by prescribing regulations continues to read as follows: prevent thrust asymmetry conditions which for practices, methods, and procedures could result in loss of control of the airplane the Administrator finds necessary for Authority: 49 U.S.C. 106(g), 40113, 44701. during landing. safety in air commerce. This regulation § 39.13 [Amended] (f) Compliance is within the scope of that authority because it addresses an unsafe condition ■ 2. The FAA amends § 39.13 by You are responsible for having the actions that is likely to exist or develop on removing AD 97–22–13, Amendment required by this AD performed within the 39–10185 (62 FR 58891, October 31, compliance times specified, unless the products identified in this rulemaking actions have already been done. action. 1997); and AD 2002–10–06, Amendment 39–12752 (67 FR 35425, (g) Restatement of Requirements of AD 2002– Regulatory Findings May 20, 2002); and adding the following 10–06, Amendment 39–12752 (67 FR 35425, We determined that this AD will not new AD: May 20, 2002): Modification have federalism implications under 2012–04–11 Airbus: Amendment 39–16967. (1) For Model A319, A320, and A321 series Executive Order 13132. This AD will Docket No. FAA–2011–1087; Directorate airplanes without Airbus modification 26017: not have a substantial direct effect on Identifier 2011–NM–032–AD. Within 18 months after June 24, 2002 (the the States, on the relationship between effective date of AD 2002–10–06, (a) Effective Date the national government and the States, Amendment 39–12752 (67 FR 35425, May 20, 2002)), replace the flight warning computers or on the distribution of power and This airworthiness directive (AD) becomes effective April 17, 2012. (FWCs) in accordance with Airbus Service responsibilities among the various Bulletin A320–31–1106, Revision 04, dated levels of government. (b) Affected ADs December 21, 1999; or Airbus Mandatory For the reasons discussed above, I This AD supersedes AD 97–22–13, Service Bulletin A320–31–1106, Revision 05, certify this AD: Amendment 39–10185 (62 FR 58891, October dated September 21, 2000. 1. Is not a ’’significant regulatory 31, 1997); and AD 2002–10–06, Amendment (2) This paragraph provides credit for action’’ under Executive Order 12866; 39–12752 (67 FR 35425, May 20, 2002). replacement of the FWCs required by

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paragraph (g)(1) of this AD, if the Tim Dulin, Aerospace Engineer, International reference at the National Archives and replacement was done before June 24, 2002 Branch, ANM–116, Transport Airplane Records Administration (NARA). For (the effective date of AD 2002–10–06, Directorate, FAA, 1601 Lind Avenue SW., information on the availability of this Amendment 39–12752 (67 FR 35425, May 20, Renton, Washington 98057–3356; telephone material at an NARA facility, call 202–741– 2002)), using Airbus Service Bulletin A320– 425–227–2141; fax 425–227–1149. 6030, or go to http://www.archives.gov/ 31–1106, dated January 3, 1997; Revision 01, Information may be emailed to: 9-ANM-116- federal_register/code_of_federal_regulations/ dated April 16, 1997; Revision 02, dated [email protected]. Before using ibr_locations.html. January 20, 1998; or Revision 03, dated July any approved AMOC, notify your appropriate Issued in Renton, Washington, on January 9, 1999. principal inspector, or lacking a principal 24, 2012. inspector, the manager of the local flight (h) Restatement of Requirements of AD standards district office/certificate holding Kalene C. Yanamura, 2002–10–06, Amendment 39–12752 (67 FR district office. The AMOC approval letter Acting Manager, Transport Airplane 35425, May 20, 2002): Optional Method of must specifically reference this AD. Directorate, Aircraft Certification Service. Compliance (2) Airworthy Product: For any requirement [FR Doc. 2012–5859 Filed 3–12–12; 8:45 am] Installation of a FWC standard in in this AD to obtain corrective actions from BILLING CODE 4910–13–P accordance with the Accomplishment a manufacturer or other source, use these Instructions of Airbus Service Bulletin A320– actions if they are FAA-approved. Corrective 31–1141, Revision 04, dated February 14, actions are considered FAA-approved if they DEPARTMENT OF TRANSPORTATION 2002, is an acceptable method of compliance are approved by the State of Design Authority with the replacement required by paragraph (or their delegated agent). You are required Federal Aviation Administration (g) of this AD. to assure the product is airworthy before it (i) New Requirements of This AD: Flight is returned to service. 14 CFR Part 39 Warning Computer Replacement (m) Related Information [Docket No. FAA–2011–0318; Directorate Within 48 months after the effective date Refer to MCAI EASA Airworthiness Identifier 2010–CE–033–AD; Amendment of this AD: Replace both FWC units with Directive 2011–0001, dated January 10, 2011; 39–16966; AD 2012–04–10] FWC part number 350E053020909, in Airbus Service Bulletin A320–31–1106, accordance with the Accomplishment Revision 04, dated December 21, 1999; RIN 2120–AA64 Instructions of Airbus Mandatory Service Airbus Mandatory Service Bulletin A320–31– Bulletin A320–31–1334, Revision 04, 1106, Revision 05, dated September 21, 2000; Airworthiness Directives; Burl A. including Appendix 01, dated September 12, Airbus Service Bulletin A320–31–1141, Rogers (Type Certificate Previously 2011. Revision 04, dated February 14, 2002; and Held by William Brad Mitchell and (j) Credit for Previous Actions Airbus Mandatory Service Bulletin A320–31– Aeronca, Inc.) Airplanes 1334, Revision 04, including Appendix 01, (1) For all airplanes, except for Model dated September 12, 2011; for related AGENCY: Federal Aviation A319 series airplanes on which information. Administration (FAA), DOT. modifications 28238, 28162, and 28342 have been incorporated: This paragraph provides (n) Material Incorporated by Reference ACTION: Final rule. credit for replacing both FWCs, as required (1) You must use the following service by paragraph (i) of this AD, if the SUMMARY: We are adopting a new information to do the actions required by this replacements were performed before the airworthiness directive (AD) for all Burl AD, unless the AD specifies otherwise. The effective date of this AD using Airbus Service A. Rogers (type certificate previously Director of the Federal Register approved the Bulletin A320–31–1334, dated July 30, 2009; held by William Brad Mitchell and incorporation by reference (IBR) of the Revision 01, dated December 14, 2009; following service information under 5 U.S.C. Aeronca, Inc.) Models 15AC and S15AC Revision 02, dated September 13, 2010; or 552(a) and 1 CFR part 51 on the date airplanes. This AD was prompted by Revision 03, dated March 15, 2011. specified. reports of intergranular exfoliation and (2) This paragraph provides credit for (2) The following service information was corrosion of the upper and/or lower replacing both FWCs in lieu of the installation specified in paragraph (h) of this approved for IBR on April 17, 2012. wing main spar cap angles found on the AD, if the replacements were performed (i) Airbus Mandatory Service Bulletin affected airplanes. This AD requires before the effective date of this AD using A320–31–1106, Revision 05, dated repetitive inspections of the upper and Airbus Service Bulletin A320–31–1141, September 21, 2000. lower main wing spar cap angles for dated March 6, 2000; Revision 01, dated May (ii) Airbus Service Bulletin A320–31–1141, cracks and/or corrosion and installing Revision 04, dated February 14, 2002. 25, 2000; Revision 02, dated January 22, inspection access panels. This AD also 2001; or Revision 03, dated June 12, 2001. (iii) Airbus Mandatory Service Bulletin A320–31–1334, Revision 04, including requires replacing the wing spar cap (k) Parts Installation Appendix 01, dated September 12, 2011. angles if moderate or severe corrosion is As of the effective date of this AD, and (3) The following service information was found and applying corrosion inhibitor. after accomplishing the actions in paragraph approved for IBR on IBR June 24, 2002 (67 We are issuing this AD to correct the (i) of this AD, no person may install a FWC FR 35425, May 20, 2002). unsafe condition on these products. with a part number listed in table 1 of this (i) Airbus Service Bulletin A320–31–1106, DATES: This AD is effective April 17, AD on any airplane. Revision 04, dated December 21, 1999. (4) For service information identified in 2012. (l) Other FAA AD Provisions this AD, contact Airbus, Airworthiness The Director of the Federal Register The following provisions also apply to this Office—EAS, 1 Rond Point Maurice Bellonte, approved the incorporation by reference AD: 31707 Blagnac Cedex, France; telephone +33 of certain publications listed in the AD (1) Alternative Methods of Compliance 5 61 93 36 96; fax +33 5 61 93 44 51; email: as of April 17, 2012. (AMOCs): The Manager, International [email protected]; Internet ADDRESSES: For service information Branch, ANM–116, Transport Airplane http://www.airbus.com. identified in this AD, contact Burl’s Directorate, FAA, has the authority to (5) You may review copies of the service Aircraft, LLC, P.O. Box 671487, approve AMOCs for this AD, if requested information at the FAA, Transport Airplane Chugiak, Alaska 99567–1487; phone: using the procedures found in 14 CFR 39.19. Directorate, 1601 Lind Avenue SW., Renton, In accordance with 14 CFR 39.19, send your Washington. For information on the (907) 688–3715; fax (907) 688–5031; request to your principal inspector or local availability of this material at the FAA, call email [email protected]; Internet: Flight Standards District Office, as 425–227–1221. http://www.burlac.com. You may appropriate. If sending information directly (6) You may also review copies of the review copies of the referenced service to the International Branch, send it to ATTN: service information that is incorporated by information at the FAA, Small Airplane

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