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Rules and Regulations Federal Register Vol 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(67 FR [Docket No. FAA–2011–1087; Directorate FOR FURTHER INFORMATION CONTACT: Tim 35425, May 20, 2002)], which is also superseded, which required the installation Identifier 2011–NM–032–AD; Amendment Dulin, Aerospace Engineer, 39–16967; AD 2012–04–11] of FWC P/N 350E017271616 (H1E2).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). VerDate Mar<15>2010 17:06 Mar 12, 2012 Jkt 226001 PO 00000 Frm 00001 Fmt 4700 Sfmt 4700 E:\FR\FM\13MRR1.SGM 13MRR1 srobinson on DSK4SPTVN1PROD with RULES 14680 Federal Register / Vol. 77, No. 49 / Tuesday, March 13, 2012 / Rules and Regulations 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.
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