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Faa–2014–0122 11728 Federal Register / Vol. 79, No. 41 / Monday, March 3, 2014 / Proposed Rules (h) Definition of Serviceable Assembly Lind Avenue SW., Renton, Washington • Federal eRulemaking Portal: Go to For purposes of this AD, an acceptable 98057–3356; phone: (425) 917–6501; fax: http://www.regulations.gov. Follow the serviceable turbine exhaust plug assembly (425) 917–6590; email: kevin.nguyen@ instructions for submitting comments. must meet the conditions specified in faa.gov. • Fax: 202–493–2251. (2) For service information identified in paragraph (h)(1) or (h)(2) of this AD. • Mail: U.S. Department of (1) A new assembly with part number this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Transportation, Docket Operations, M– 314W5520–22. 30, West Building Ground Floor, Room (2) A serviceable assembly as defined in Management, P. O. Box 3707, MC 2H–65, the Accomplishment Instructions of Boeing Seattle, WA 98124–2207; telephone 206– W12–140, 1200 New Jersey Avenue SE., Special Attention Service Bulletin 777–78– 544–5000, extension 1; fax 206–766–5680; Washington, DC 20590. 0051, Revision 3, dated August 23, 2012; Internet https://www.myboeingfleet.com. You • Hand Delivery: Deliver to Mail except, for any assembly on which the may view this referenced service information address above between 9 a.m. and 5 actions specified in Part 2 or Part 3 of the at the FAA, Transport Airplane Directorate, p.m., Monday through Friday, except Accomplishment Instructions of Boeing 1601 Lind Avenue SW., Renton, WA. For Federal holidays. Special Attention Service Bulletin 777–78– information on the availability of this material at the FAA, call 425–227–1221. For service information identified in 0051, Revision 3, dated August 23, 2012, are this proposed AD, contact Boeing done, and Boeing Special Attention Service Issued in Renton, Washington, on February Bulletin 777–78–0051, Revision 3, dated Commercial Airplanes, Attention: Data 24, 2014. & Services Management, P.O. Box 3707, August 23, 2012, specifies to contact Boeing Jeffrey E. Duven, for repair instructions, this AD requires MC 2H–65, Seattle, WA 98124–2207; repair before further flight using a method Manager, Transport Airplane Directorate, telephone 206–544–5000, extension 1; approved in accordance with the procedures Aircraft Certification Service. fax 206–766–5680; Internet https:// specified in paragraph (k) of this AD. [FR Doc. 2014–04568 Filed 2–28–14; 8:45 am] www.myboeingfleet.com. You may view (i) Exception to Service Information BILLING CODE 4910–13–P this referenced service information at Specifications the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Where paragraph 1.E., ‘‘Compliance,’’ of DEPARTMENT OF TRANSPORTATION Boeing Special Attention Service Bulletin Renton, WA 98057. For information on the availability of this material at the 777–78–0051, Revision 3, dated August 23, Federal Aviation Administration 2012, specifies a compliance time ‘‘after the FAA, call 425–227–2112. Revision 3 date of this service bulletin,’’ this AD requires compliance within the 14 CFR Part 39 Examining the AD Docket applicable time after the effective date of this You may examine the AD docket on AD. [Docket No. FAA–2014–0122; Directorate the Internet at http:// Identifier 2014–NM–002–AD] (j) Parts Installation Limitation www.regulations.gov by searching for and locating Docket No. FAA–2014– As of the effective date of this AD, only a RIN 2120–AA64 serviceable turbine exhaust plug assembly 0122; or in person at the Docket may be installed on any airplane. Airworthiness Directives; The Boeing Management Facility between 9 a.m. Company Airplanes and 5 p.m., Monday through Friday, (k) Alternative Methods of Compliance except Federal holidays. The AD docket (AMOCs) AGENCY: Federal Aviation contains this proposed AD, the (1) The Manager, Seattle Aircraft Administration (FAA), DOT. regulatory evaluation, any comments Certification Office (ACO), FAA, has the received, and other information. The authority to approve AMOCs for this AD, if ACTION: Notice of proposed rulemaking requested using the procedures found in 14 (NPRM). street address for the Docket Office CFR 39.19. In accordance with 14 CFR 39.19, (phone: 800–647–5527) is in the send your request to your principal inspector SUMMARY: We propose to adopt a new ADDRESSES section. Comments will be or local Flight Standards District Office, as airworthiness directive (AD) for certain available in the AD docket shortly after appropriate. If sending information directly The Boeing Company Model 737–600, receipt. to the manager of the ACO, send it to the –700, –700C, –800, and –900 series FOR FURTHER INFORMATION CONTACT: attention of the person identified in airplanes. This proposed AD was Marie Hogestad, Aerospace Engineer, paragraph (m) of this AD. Information may be prompted by reports in which a single, emailed to: 9-ANM-Seattle-ACO-AMOC- Systems and Equipment Branch, ANM– undetected, erroneous radio altimeter 130S, FAA, Seattle Aircraft Certification [email protected]. output caused the autothrottle to enter (2) Before using any approved AMOC, Office, 1601 Lind Avenue SW., Renton, notify your appropriate principal inspector, landing flare retard mode prematurely WA 98057–3356; phone: 425–917–6418; or lacking a principal inspector, the manager on approach. This proposed AD would fax: 425–917–6590; email: of the local flight standards district office/ require removing certain autothrottle [email protected]. computers and installing a new or certificate holding district office. SUPPLEMENTARY INFORMATION: (3) An AMOC that provides an acceptable reworked autothrottle computer. We are level of safety may be used for any repair proposing this AD to prevent a single, Comments Invited required by this AD if it is approved by the undetected, erroneous radio altimeter Boeing Commercial Airplanes Organization We invite you to send any written output from causing premature relevant data, views, or arguments about Designation Authorization (ODA) that has autothrottle landing flare retard and been authorized by the Manager, Seattle this proposal. Send your comments to ACO, to make those findings. For a repair subsequent loss of automatic speed an address listed under the ADDRESSES method to be approved, the repair must meet control, which could result in loss of section. Include ‘‘Docket No. FAA– the certification basis of the airplane, and the control of the airplane. 2014–0122; Directorate Identifier 2014– approval must specifically refer to this AD. DATES: We must receive comments on NM–002–AD’’ at the beginning of your (l) Related Information this proposed AD by April 17, 2014. comments. We specifically invite (1) For more information about this AD, ADDRESSES: You may send comments, comments on the overall regulatory, contact Kevin Nguyen, Aerospace Engineer, using the procedures found in 14 CFR economic, environmental, and energy Propulsion Branch, ANM–140S, Seattle 11.43 and 11.45, by any of the following aspects of this proposed AD. We will Aircraft Certification Office (ACO) FAA, 1601 methods: consider all comments received by the VerDate Mar<15>2010 16:22 Feb 28, 2014 Jkt 232001 PO 00000 Frm 00015 Fmt 4702 Sfmt 4702 E:\FR\FM\03MRP1.SGM 03MRP1 mstockstill on DSK4VPTVN1PROD with PROPOSALS Federal Register / Vol. 79, No. 41 / Monday, March 3, 2014 / Proposed Rules 11729 closing date and may amend this to inhibit landing flare retard mode and, FAA’s Determination proposed AD because of those therefore, can enter landing flare retard We are proposing this AD because we comments. mode prematurely due to a single, evaluated all the relevant information We will post all comments we undetected, erroneous radio altimeter and determined the unsafe condition receive, without change, to http:// signal. This condition, if not corrected, described previously is likely to exist or www.regulations.gov, including any could result in a single, undetected, develop in other products of the same personal information you provide. We erroneous radio altimeter output, type design. will also post a report summarizing each causing premature autothrottle landing substantive verbal contact we receive flare retard and subsequent loss of Proposed AD Requirements about this proposed AD. automatic speed control, which could This proposed AD would require Discussion result in loss of control of the airplane. removing certain autothrottle computers and installing a new or reworked We received reports in which a single, Relevant Service Information autothrottle computer as specified in the undetected, erroneous radio altimeter We reviewed Boeing Alert Service service information described output caused the autothrottle to enter Bulletin 737–22A1215, dated November previously. landing flare retard mode prematurely on approach. The autothrottle computer 22, 2013. For information on the Costs of Compliance delivered on Boeing Model 737NG procedures, see this service information We estimate that this proposed AD airplanes listed in the applicability of at http://www.regulations.gov by affects 497 airplanes of U.S. registry. this proposed AD does not have an searching for Docket No. FAA–2014– We estimate the following costs to autothrottle radio altimeter comparator 0122. comply with this proposed AD: ESTIMATED COSTS Cost per Cost on U.S. Action Labor cost Parts cost product operators Autothrottle computer replacement ................. 1 work-hour × $85 per hour = $85 ................. $0 $85 $42,245 Authority for This Rulemaking (1) Is not a ‘‘significant regulatory (a) Comments Due Date action’’ under Executive Order 12866, Title 49 of the United States Code We must receive comments by April 17, (2) Is not a ‘‘significant rule’’ under specifies the FAA’s authority to issue 2014. the DOT Regulatory Policies and rules on aviation safety. Subtitle I, (b) Affected ADs Procedures (44 FR 11034, February 26, section 106, describes the authority of 1979), None. the FAA Administrator. Subtitle VII: (3) Will not affect intrastate aviation Aviation Programs, describes in more (c) Applicability in Alaska, and detail the scope of the Agency’s This AD applies to The Boeing Company (4) Will not have a significant authority.
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