80 FR 48013 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 80, Issue 154 (August 11, 2015)
Federal Aviation Administration
Federal Register Volume 80, Issue 154 (August 11, 2015)
| Page Range | 48013-48018 | |
| FR Document | 2015-19316 |
[Federal Register Volume 80, Number 154 (Tuesday, August 11, 2015)] [Rules and Regulations] [Pages 48013-48018] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2015-19316] ======================================================================= ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2014-0487; Directorate Identifier 2014-NM-026-AD; Amendment 39-18226; AD 2015-16-01] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are superseding Airworthiness Directive (AD) 2012-19-11 for certain The Boeing Company Model 737 airplanes. AD 2012-19-11 required incorporating design changes to improve the reliability of the cabin altitude warning system by installing a redundant cabin altitude pressure switch, replacing the aural warning module (AWM) with a new or reworked AWM, and changing certain wire bundles or connecting certain previously capped and stowed wires as necessary. For certain airplanes, AD 2012-19-11 also required prior or concurrent incorporation of related design changes by modifying the instrument panels, installing light assemblies, modifying the wire bundles, and installing a new circuit breaker, as necessary. This AD was prompted by the report of a flightcrew not receiving an aural warning during a lack-of-cabin pressurization event. We are issuing this AD to prevent the loss of cabin altitude warning, which could delay flightcrew recognition of a lack of cabin pressurization, and could result in incapacitation of the flightcrew due to hypoxia (a lack of oxygen in the body), and consequent loss of control of the airplane. DATES: This AD is effective September 15, 2015. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of September 15, 2015. The Director of the Federal Register approved the incorporation by reference of certain other publications listed in this AD as of November 7, 2012 (77 FR 60296, October 3, 2012). ADDRESSES: For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014- 0487; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800-647- 5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Francis Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057- 3356; telephone: 425-917-6596; fax: 425-917-6590; email: Francis.Smith@faa.gov. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012). AD 2012-19-11 [[Page 48014]] applied to certain The Boeing Company Model 737 airplanes. The NPRM published in the Federal Register on July 29, 2014 (79 FR 43983). The NPRM was prompted by the report of a flightcrew not receiving an aural warning during a lack of cabin pressurization event. The NPRM proposed to continue to require incorporating design changes to improve the reliability of the cabin altitude warning system by installing a redundant cabin altitude pressure switch, replacing the AWM with a new or reworked AWM, and changing certain wire bundles or connecting certain previously capped and stowed wires as necessary. For certain airplanes, the NPRM proposed to continue to require prior or concurrent incorporation of related design changes by modifying the instrument panels, installing light assemblies, modifying the wire bundles, and installing a new circuit breaker, as necessary. The NPRM also proposed to require, for certain airplanes, incorporating related design changes. The NPRM also proposed, for certain airplanes, to no longer give credit for the prior accomplishment of certain actions. We are issuing this AD to prevent the loss of cabin altitude warning, which could delay flightcrew recognition of a lack of cabin pressurization, and could result in incapacitation of the flightcrew due to hypoxia (a lack of oxygen in the body), and consequent loss of control of the airplane. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM (79 FR 43983, July 29, 2014) and the FAA's response to each comment. Request To Use the Latest Service Information Boeing requested that the proposed rule (79 FR 43983, July 29, 2014) incorporate Boeing Special Attention Service Bulletin 737-21- 1165, Revision 3, dated July 16, 2014, and Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014. Boeing stated that it has released new service information and the service information should be reflected in the proposed rule. We agree with the commenter's request to reference the latest service information. We have revised this final rule accordingly. Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014, updates reference document names, corrects typographical errors, and includes airplanes that were removed in error in an earlier revision of the service information. The procedures remain unchanged. In addition, we have added paragraph (j)(2) of this AD, to give credit for previous actions, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 737- 31A1325, dated January 11, 2010, and Boeing Alert Service Bulletin 737- 31A1325, Revision 1, dated July 5, 2012. Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014, includes configuration differences found by operators during incorporation of earlier revisions of the service information. The procedures otherwise remain unchanged. Request To Add an Exception to the Proposed Rule (79 FR 43983, July 29, 2014) An anonymous commenter requested to add an exception to the proposed rule (79 FR 43983, July 29, 2014). The commenter stated that paragraphs (j)(2) and (j)(3) of the proposed AD should include the same exceptions for group 24 through 25 airplanes, and group 27 through 33 airplanes, as identified in Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013. The commenter also stated that paragraphs (i)(2) and (i)(3) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), did not give credit for previous actions for group 24 through 25 airplanes, and group 27 through 33 airplanes, as identified in Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012. The commenter stated that this is because paragraph 1.C. of Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012, explicitly states that changes given in figures 48 through 50 affect wiring changes previously accomplished in Boeing Service Bulletin 737-24A1141; also figures 15 through 17, and airplane line numbers 1 through 740, are moved to a new group 24 through 25 airplanes, and group 27 through 33 airplanes. The commenter stated that if an airplane is identified in groups 24 through 25 airplanes, and group 27 through 33 airplanes, of Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013, the operator can take credit for previous actions accomplished using Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 2011, and Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated June 24, 2010. Therefore, the commenter stated that the operator must, per the exceptions of paragraphs (i)(2) or (i)(3) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), re-comply with the proposed AD once the additional actions are taken. We disagree with the commenter's request. This AD corrects an error in paragraph (i) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012). In AD 2012-19-11, airplanes were identified incorrectly as having wiring instructions that may conflict with the corrective actions of AD 2009-16-07, Amendment 39-15990 (74 FR 41607, August 18, 2009). Further, this AD supersedes (i.e., ``replaces'') AD 2012-19-11, and therefore compliance is required with this new AD only. In addition, there are still exclusions in this AD, but they are now identified by line numbers--not by groups--as shown in paragraphs (j)(1)(ii) and (j)(1)(iii) of this AD. We have not changed this AD in this regard. Request To Extend the Compliance Time United Airlines (UAL) requested that the compliance time for the proposed rule (79 FR 43983, July 29, 2014) be extended a minimum of 1 year for all airplanes. UAL stated that this is due to the increased scope of required testing not documented in Boeing Special Attention Service Bulletin 737-21-1165, Revision 1, dated July 16, 2010, as revised by Boeing Special Attention Service Bulletin 737-21-1165, Revision 2, dated April 30, 2012. UAL commented that Boeing Special Attention Service Bulletin 737-21-1165, Revision 2, dated April 30, 2012, is for the removal of the junction box 46, and additional administrative time is required during the accomplishment of each airplane for obtaining an alternate method of compliance (AMOC). UAL commented that due to the removal of junction box 46, 43 additional operational checks must be accomplished and are estimated to take an additional 30 hours of elapsed time for each airplane. UAL stated that the estimated costs of the proposed rule (79 FR 43983, July 29, 2014) should be revised to include an additional 30 hours for testing. UAL also stated that multiple AMOCs have been required for the concurrent requirements and for airplanes affected by AD 2013-02-05, Amendment 39-17326 (78 FR 6202, January 30, 2013) due to errors in the Boeing data. UAL stated that the time necessary to seek approved AMOCs extends the completion time of each airplane beyond the time allotted in the estimated costs and can result in the airplanes being out of service. [[Page 48015]] We disagree with the commenter's request. Boeing has provided its work estimates based on average times for accomplishing its service information specifically to correct the unsafe condition. The time spent to perform additional functional checks and testing to systems incidentally associated with the unsafe condition in this AD and any associated administrative actions in carrying out all work (related to this AD) will vary among operators. Additionally, we do not consider the time spent processing AMOCs when we determine estimated costs of an AD because of the variable occurrences, scope of technical deviations, and elective nature of many AMOC requests. The estimate of labor hours provides only a guideline for operators, and operators are encouraged to review all relevant work steps to create time and cost estimates specific to their schedules and work processes. Operators that request AMOCs while their airplane is in maintenance do not have to wait for the Seattle Aircraft Certification Office (ACO) approval before they can return the airplane to service, provided the 72-month compliance time has not passed, and operators do not claim compliance credit in their maintenance records until the AMOC is received. As long as the 72-month compliance time has not been exceeded, an AMOC is not needed; therefore, requests for compliance time extensions and Seattle ACO responses to early AMOC requests have no effect on returning an airplane to service from an operator's maintenance cycle. We base AD compliance times primarily on our assessment of safety risk. We consider the overall risk to the fleet, including the severity of the failure and the likelihood of the failure's occurrence in development of the compliance time for the ADs. We work with the respective manufacturers to ensure that all appropriate instructions and parts are available at the appropriate time to meet our collective safety goals, and that those goals are based on safety of the fleet. We have not changed this AD in this regard. Effect of Winglets on AD Aviation Partners Boeing stated that the installation of winglets per STC ST01219SE or ST00830SE does not affect the accomplishment of the manufacturer's service instructions. Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this AD with the changes described previously and minor editorial changes. We have determined that these minor changes:Are consistent with the intent that was proposed in the NPRM (79 FR 43983, July 29, 2014) for correcting the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM (79 FR 43983, July 29, 2014). We also determined that these changes will not increase the economic burden on any operator or increase the scope of this AD. Related Service Information Under 1 CFR Part 51 We reviewed the following service information: Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014. Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013. Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013. Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014. The service information describe procedures for incorporating design changes to improve the reliability of the cabin altitude warning system by installing a redundant cabin altitude pressure switch, replacing the AWM with a new or reworked AWM, and changing certain wire bundles or connecting certain previously capped and stowed wires as necessary. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section of this AD. Costs of Compliance We estimate that this AD affects 1,618 airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost on U.S. Action Labor cost Parts cost Cost per product operators ---------------------------------------------------------------------------------------------------------------- Install a redundant cabin Up to 62 $33,576 Up to $38,846...... Up to $62,852,828 altitude pressure switch, work[dash]hours x replace the AWM with a new or $85 per hour = up reworked AWM, change certain to $5,270. wire bundles or connect certain capped and stowed wires [retained actions from AD 2012- 19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), for 1,618 airplanes]. Modify the instrument panels, Up to 92 5,292 Up to $13,112...... Up to $20,926,752 install light assemblies, modify work[dash]hours x the wire bundles, and install a $85 per hour = up new circuit breaker (concurrent to $7,820. requirements) [retained actions from AD 2012-19-11, Amendment 39- 17206 (77 FR 60296, October 3, 2012), for 1,596 airplanes]. Modify the instrument panels, Up to 92 5,292 Up to $13,112...... Up to $288,464 install light assemblies, modify work[dash]hours x the wire bundles, and install a $85 per hour = up new circuit breaker (concurrent to $7,820. requirements) [new actions for 22 airplanes]. ---------------------------------------------------------------------------------------------------------------- Authority for This Rulemaking Title 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, Section 106, describes the authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the Agency's authority. We are issuing this rulemaking under the authority described in Subtitle VII, [[Page 48016]] Part A, Subpart III, Section 44701, ``General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings We have determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ``significant regulatory action'' under Executive Order 12866, (2) Is not a ``significant rule'' under DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), and adding the following new AD: 2015-16-01 The Boeing Company: Amendment 39-18226; Docket No. FAA- 2014-0487; Directorate Identifier 2014-NM-026-AD. (a) Effective Date This AD is effective September 15, 2015. (b) Affected ADs This AD replaces AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012). (c) Applicability This AD applies to The Boeing Company airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model 737-100, -200, -200C, -300,--400, and -500 series airplanes, as identified in Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013. (2) Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, as identified in Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014. (d) Subject Air Transport Association (ATA) of America Code 21, Air Conditioning. (e) Unsafe Condition This AD was prompted by the report of a flightcrew not receiving an aural warning during a lack of cabin pressurization event. We are issuing this AD to prevent the loss of cabin altitude warning, which could delay flightcrew recognition of a lack of cabin pressurization, and could result in incapacitation of the flightcrew due to hypoxia (a lack of oxygen in the body), and consequent loss of control of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Installation This paragraph restates the actions required by paragraph (g) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), with revised service information. Within 72 months after November 7, 2012 (the effective date of AD 2012-19-11), install a redundant cabin altitude pressure switch, replace the aural warning module (AWM) with a new or reworked AWM, and change certain wire bundles or connect certain capped and stowed wires, as applicable, in accordance with the Accomplishment Instructions of the applicable service information in paragraphs (g)(1) and (g)(2) of this AD; except as provided by paragraph (k)(1) of this AD. (1) Boeing Special Attention Service Bulletin 737-21-1164, Revision 1, dated May 17, 2012; or Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013 (for Model 737-100, -200, -200C, -300, -400, and -500 series airplanes). As of the effective date of this AD, use Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013, for the actions specified in paragraph (g) of this AD. (2) Boeing Special Attention Service Bulletin 737-21-1165, Revision 1, dated July 16, 2010, as revised by Boeing Special Attention Service Bulletin 737-21-1165, Revision 2, dated April 30, 2012; or Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014 (for Model 737-600, -700, -700C, - 800, -900, and -900ER series airplanes). As of the effective date of this AD use Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014. (h) Retained Concurrent Actions This paragraph restates the concurrent actions required by paragraph (h) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), with revised service information. For airplanes identified in Boeing Alert Service Bulletin 737-31A1325, dated January 11, 2010 (for Model 737-100, -200, -200C, -300, -400, and - 500 series airplanes); and Boeing Alert Service Bulletin 737- 31A1332, Revision 3, dated March 28, 2012 (for Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes); except as provided by paragraph (i) of this AD: Before or concurrently with accomplishment of the actions specified in paragraph (g) of this AD, as applicable, modify the instrument panels, install light assemblies, modify the wire bundles, and install a new circuit breaker, in accordance with the Accomplishment Instructions of the applicable service information in paragraphs (h)(1) and (h)(2) of this AD; except as provided by paragraph (k)(2) of this AD. (1) The service information for Model 737-100, -200, -200C, - 300, -400, and -500 series airplanes as identified in paragraphs (h)(1)(i), (h)(1)(ii), and (h)(1)(iii), of this AD. As of the effective date of this AD, use Boeing Alert Service Bulletin 737- 31A1325, Revision 2, dated June 5, 2014 (for Model 737-100, -200, - 200C, -300, -400, and -500 series airplanes), for the actions specified in paragraph (h) of this AD. (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 2010. (ii) Boeing Alert Service Bulletin 737-31A1325, Revision 1, dated July 5, 2012. (iii) Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014. (2) Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012; or Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013 (for Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes). As of the effective date of this AD, use Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013 (for Model 737-600, -700, -700C, -800, - 900, and -900ER series airplanes), for the actions specified in paragraph (h) of this AD. (i) New Concurrent Requirement For airplanes having variable numbers YA001 through YA008 inclusive, YA251, YA501 through YA508 inclusive, and YC321 through YC325 inclusive: Before or concurrently with accomplishment of the actions specified in paragraph (g) of this AD, or within 18 months after the effective date of this AD, whichever occurs later, modify the instrument panels, install light assemblies, modify the wire bundles, and install a new circuit breaker, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin 737- 31A1332, Revision 4, dated October 31, 2013. [[Page 48017]] (j) Credit for Previous Actions (1) This paragraph restates the credit for previous actions stated in paragraph (i) of AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), with correct paragraph reference and revised exempted airplanes. (i) This paragraph provides credit for the actions required by paragraph (g) of this AD, if those actions were performed before November 7, 2012 (the effective date of AD 2012-19-11, Amendment 39- 17206 (77 FR 60296, October 3, 2012)), using Boeing Special Attention Service Bulletin 737-21-1165, Revision 1, dated July 16, 2010, which was incorporated by reference in AD 2012-19-11. (ii) For airplanes identified in Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated June 24, 2010; except airplanes having variable numbers YA001 through YA019 inclusive, YA201 through YA203 inclusive, YA231 through YA242 inclusive, YA251, YA252, YA271, YA272, YA301, YA302, YA311, YA312, YA501 through YA508 inclusive, YA541, YA701, YA702, YC001 through YC007 inclusive, YC051, YC052, YC101, YC102, YC111, YC121, YC301, YC302, YC321 through YC330 inclusive, YC381, YC401 through YC403 inclusive, YC501, YC502, and YE001 through YE003 inclusive: This paragraph provides credit for the actions required by paragraph (h) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated June 24, 2010, which was incorporated by reference in AD 2012-19-11, Amendment 39- 17206 (77 FR 60296, October 3, 2012). (iii) For airplanes identified in Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 2011; except airplanes identified in paragraph (j)(4) of this AD and airplanes having variable numbers YA001 through YA019 inclusive, YA201 through YA203 inclusive, YA231 through YA242 inclusive, YA251, YA252, YA271, YA272, YA301, YA302, YA311, YA312, YA501 through YA508 inclusive, YA541, YA701, YA702, YC001 through YC007 inclusive, YC051, YC052, YC101, YC102, YC111, YC121, YC301, YC302, YC321 through YC330 inclusive, YC381, YC401 through YC403 inclusive, YC501, YC502, and YE001 through YE003 inclusive: This paragraph provides credit for the actions required by paragraph (h) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 2011, which was incorporated by reference in AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012). (iv) For Group 21, Configuration 2 airplanes identified in Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012: This paragraph provides credit for the actions required by paragraph (h) of this AD, if those actions were performed before the effective date of this AD using Boeing Alert Service Bulletin 737- 31A1332, Revision 2, dated August 18, 2011, which was incorporated by reference in AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012); and provided that the actions specified in Boeing Service Bulletin 737-21-1171, dated February 12, 2009 (which is not incorporated by reference in this AD), were accomplished prior to or concurrently with the actions specified in Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 2011. (2) This paragraph provides credit for the actions specified in paragraph (h) of this AD, if those actions were performed before the effective date of this AD using the service information identified in paragraph (j)(2)(i) or (j)(2)(ii) of this AD. (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 2010, which was incorporated by reference in AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012). (ii) Boeing Alert Service Bulletin 737-31A1325, Revision 1, dated July 5, 2012, which is not incorporated by reference in this AD. (k) New Requirements to This AD: Exceptions to the Service Information (1) Where Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013, specifies to contact Boeing for instructions: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (l) of this AD. (2) Where Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014, specifies to contact Boeing for instructions: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (l) of this AD. (l) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in paragraph (m)(1) of this AD. Information may be emailed to: 9-ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO, to make those findings. For a repair method to be approved, the repair must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (4) AMOCs approved for AD 2012-19-11, Amendment 39-17206 (77 FR 60296, October 3, 2012), are approved as AMOCs for the corresponding provisions of this AD. (m) Related Information (1) For more information about this AD, contact Francis Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6596; fax: 425- 917-6590; email: Francis.Smith@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (n)(5) and (n)(6) of this AD. (n) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on September 15, 2015. (i) Boeing Alert Service Bulletin 737-31A1325, Revision 2, dated June 5, 2014. (ii) Boeing Alert Service Bulletin 737-31A1332, Revision 4, dated October 31, 2013. (iii) Boeing Special Attention Service Bulletin 737-21-1164, Revision 2, dated August 23, 2013. (iv) Boeing Special Attention Service Bulletin 737-21-1165, Revision 3, dated July 16, 2014. (4) The following service information was approved for IBR on November 7, 2012 (77 FR 60296, October 3, 2012). (i) Boeing Alert Service Bulletin 737-31A1325, dated January 11, 2010. (ii) Boeing Alert Service Bulletin 737-31A1332, Revision 1, dated June 24, 2010. (iii) Boeing Alert Service Bulletin 737-31A1332, Revision 2, dated August 18, 2011. (iv) Boeing Alert Service Bulletin 737-31A1332, Revision 3, dated March 28, 2012. (v) Boeing Special Attention Service Bulletin 737-21-1164, Revision 1, dated May 17, 2012. (vi) Boeing Special Attention Service Bulletin 737-21-1165, Revision 1, dated July 16, 2010. (vii) Boeing Special Attention Service Bulletin 737-21-1165, Revision 2, dated April 30, 2012. (5) For Boeing service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Data & Services Management, P. O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-5000, extension 1; fax 206-766-5680; Internet https://www.myboeingfleet.com. (6) You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425-227-1221. (7) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html. [[Page 48018]] Issued in Renton, Washington, on July 22, 2015. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2015-19316 Filed 8-10-15; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 80, No. 154 / Tuesday, August 11, 2015 / Rules and Regulations 48013
calendar year, or such other date as percent or more under expected and recognition of a lack of cabin
directed by NCUA. * * * stressed conditions in each quarter of pressurization, and could result in
* * * * * the 9-quarter horizon, the credit union incapacitation of the flightcrew due to
(c) Credit union-run tests under must provide NCUA, by November 30 of hypoxia (a lack of oxygen in the body),
NCUA supervision. After NCUA has the calendar year in which NCUA and consequent loss of control of the
completed three consecutive conducted the tests, a stress test capital airplane.
supervisory stress tests of a covered enhancement plan showing how it will DATES: This AD is effective September
credit union, the covered credit union meet that target. If credit union-run 15, 2015.
may, with NCUA approval, conduct the stress tests show that a covered credit The Director of the Federal Register
tests described in this subpart. A union does not have the ability to approved the incorporation by reference
covered credit union must submit its maintain a stress test capital ratio of 5 of certain publications listed in this AD
request to NCUA to conduct its own percent or more under expected and as of September 15, 2015.
stress test by November 30 for the stressed conditions in each quarter of The Director of the Federal Register
following annual cycle. NCUA will the 9-quarter horizon, the credit union approved the incorporation by reference
approve or decline the credit union’s must incorporate a stress test capital of certain other publications listed in
request by December 31 of the year in enhancement plan into its capital plan. this AD as of November 7, 2012 (77 FR
which the credit union submitted its Any affected credit union operating 60296, October 3, 2012).
request. NCUA reserves the right to without a stress test capital ADDRESSES: For service information
conduct the tests described in this enhancement plan accepted by NCUA identified in this AD, contact Boeing
section on any covered credit union at may be subject to supervisory actions. Commercial Airplanes, Attention: Data
any time. Where both NCUA and a * * * * * & Services Management, P. O. Box 3707,
covered credit union have conducted [FR Doc. 2015–19526 Filed 8–10–15; 8:45 am] MC 2H–65, Seattle, WA 98124–2207;
the tests, the results of NCUA’s tests BILLING CODE 7535–01–P telephone 206–544–5000, extension 1;
will determine whether the covered fax 206–766–5680; Internet https://
credit union has met the requirements www.myboeingfleet.com. You may view
of this subpart. DEPARTMENT OF TRANSPORTATION this referenced service information at
(d) Potential impact on capital. In the FAA, Transport Airplane
conducting stress tests under this Federal Aviation Administration Directorate, 1601 Lind Avenue SW.,
subpart, NCUA or the covered credit Renton, WA. For information on the
union will estimate the following for 14 CFR Part 39 availability of this material at the FAA,
each scenario during each quarter of the [Docket No. FAA–2014–0487; Directorate call 425–227–1221.
stress test horizon: Identifier 2014–NM–026–AD; Amendment
(1) Losses, pre-provision net revenues, Examining the AD Docket
39–18226; AD 2015–16–01]
loan and lease loss provisions, and net You may examine the AD docket on
income; and RIN 2120–AA64 the Internet at http://
(2) The potential impact on the stress www.regulations.gov by searching for
Airworthiness Directives; The Boeing and locating Docket No. FAA–2014–
test capital ratio, incorporating the
Company Airplanes 0487; or in person at the Docket
effects of any capital action over the 9-
quarter stress test horizon and AGENCY: Federal Aviation Management Facility between 9 a.m.
maintenance of an allowance for loan Administration (FAA), DOT. and 5 p.m., Monday through Friday,
losses appropriate for credit exposures ACTION: Final rule. except Federal holidays. The AD docket
throughout the horizon. NCUA or the contains this AD, the regulatory
covered credit union will conduct the SUMMARY: We are superseding evaluation, any comments received, and
stress tests without assuming any risk Airworthiness Directive (AD) 2012–19– other information. The address for the
mitigation actions on the part of the 11 for certain The Boeing Company Docket Office (phone: 800–647–5527) is
covered credit union, except those Model 737 airplanes. AD 2012–19–11 Docket Management Facility, U.S.
existing and identified as part of the required incorporating design changes Department of Transportation, Docket
covered credit union’s balance sheet, or to improve the reliability of the cabin Operations, M–30, West Building
off-balance sheet positions, such as asset altitude warning system by installing a Ground Floor, Room W12–140, 1200
sales or derivatives positions, on the redundant cabin altitude pressure New Jersey Avenue SE., Washington,
date of the stress test. switch, replacing the aural warning DC 20590.
(e) Information collection. Upon module (AWM) with a new or reworked FOR FURTHER INFORMATION CONTACT:
request, the covered credit union must AWM, and changing certain wire Francis Smith, Aerospace Engineer,
provide NCUA with any relevant bundles or connecting certain Cabin Safety and Environmental
qualitative or quantitative information previously capped and stowed wires as Systems Branch, ANM–150S, FAA,
requested by NCUA pertinent to the necessary. For certain airplanes, AD Seattle Aircraft Certification Office,
stress tests under this subpart. 2012–19–11 also required prior or 1601 Lind Avenue SW., Renton, WA
(f) Stress test results. NCUA will concurrent incorporation of related 98057–3356; telephone: 425–917–6596;
provide each covered credit union with design changes by modifying the fax: 425–917–6590; email:
the results of the stress tests by August instrument panels, installing light Francis.Smith@faa.gov.
31 of the year in which it conducted the assemblies, modifying the wire bundles, SUPPLEMENTARY INFORMATION:
tests. A credit union conducting its own and installing a new circuit breaker, as
rmajette on DSK2TPTVN1PROD with RULES
stress tests must incorporate the test necessary. This AD was prompted by Discussion
results in its capital plan. the report of a flightcrew not receiving We issued a notice of proposed
(g) Supervisory actions. If NCUA-run an aural warning during a lack-of-cabin rulemaking (NPRM) to amend 14 CFR
stress tests show that a covered credit pressurization event. We are issuing this part 39 to supersede AD 2012–19–11,
union does not have the ability to AD to prevent the loss of cabin altitude Amendment 39–17206 (77 FR 60296,
maintain a stress test capital ratio of 5 warning, which could delay flightcrew October 3, 2012). AD 2012–19–11
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![Federal Register / Vol. 80, No. 154 / Tuesday, August 11, 2015 / Rules and Regulations 48015
We disagree with the commenter’s We base AD compliance times burden on any operator or increase the
request. Boeing has provided its work primarily on our assessment of safety scope of this AD.
estimates based on average times for risk. We consider the overall risk to the
Related Service Information Under 1
accomplishing its service information fleet, including the severity of the
CFR Part 51
specifically to correct the unsafe failure and the likelihood of the failure’s
condition. The time spent to perform occurrence in development of the We reviewed the following service
additional functional checks and testing compliance time for the ADs. We work information:
to systems incidentally associated with with the respective manufacturers to • Boeing Alert Service Bulletin 737–
the unsafe condition in this AD and any ensure that all appropriate instructions 31A1325, Revision 2, dated June 5,
associated administrative actions in and parts are available at the 2014.
carrying out all work (related to this AD) appropriate time to meet our collective • Boeing Alert Service Bulletin 737–
will vary among operators. safety goals, and that those goals are 31A1332, Revision 4, dated October 31,
Additionally, we do not consider the based on safety of the fleet. We have not 2013.
time spent processing AMOCs when we changed this AD in this regard. • Boeing Special Attention Service
determine estimated costs of an AD Bulletin 737–21–1164, Revision 2, dated
Effect of Winglets on AD August 23, 2013.
because of the variable occurrences,
scope of technical deviations, and Aviation Partners Boeing stated that • Boeing Special Attention Service
elective nature of many AMOC requests. the installation of winglets per STC Bulletin 737–21–1165, Revision 3, dated
ST01219SE or ST00830SE does not July 16, 2014.
The estimate of labor hours provides The service information describe
affect the accomplishment of the
only a guideline for operators, and procedures for incorporating design
manufacturer’s service instructions.
operators are encouraged to review all changes to improve the reliability of the
relevant work steps to create time and Conclusion cabin altitude warning system by
cost estimates specific to their schedules installing a redundant cabin altitude
and work processes. Operators that We reviewed the relevant data,
considered the comments received, and pressure switch, replacing the AWM
request AMOCs while their airplane is with a new or reworked AWM, and
determined that air safety and the
in maintenance do not have to wait for changing certain wire bundles or
public interest require adopting this AD
the Seattle Aircraft Certification Office connecting certain previously capped
with the changes described previously
(ACO) approval before they can return and stowed wires as necessary. This
and minor editorial changes. We have
the airplane to service, provided the 72- service information is reasonably
determined that these minor changes:
month compliance time has not passed, available because the interested parties
and operators do not claim compliance • Are consistent with the intent that
have access to it through their normal
credit in their maintenance records until was proposed in the NPRM (79 FR
course of business or by the means
the AMOC is received. As long as the 43983, July 29, 2014) for correcting the
identified in the ADDRESSES section of
72-month compliance time has not been unsafe condition; and
this AD.
exceeded, an AMOC is not needed; • Do not add any additional burden
therefore, requests for compliance time upon the public than was already Costs of Compliance
extensions and Seattle ACO responses proposed in the NPRM (79 FR 43983, We estimate that this AD affects 1,618
to early AMOC requests have no effect July 29, 2014). airplanes of U.S. registry.
on returning an airplane to service from We also determined that these We estimate the following costs to
an operator’s maintenance cycle. changes will not increase the economic comply with this AD:
ESTIMATED COSTS
Action Labor cost Parts cost Cost per product Cost on U.S. operators
Install a redundant cabin altitude pressure Up to 62 work-hours × $33,576 Up to $38,846 ............. Up to $62,852,828
switch, replace the AWM with a new or re- $85 per hour = up to
worked AWM, change certain wire bundles $5,270.
or connect certain capped and stowed wires
[retained actions from AD 2012–19–11,
Amendment 39–17206 (77 FR 60296, Octo-
ber 3, 2012), for 1,618 airplanes].
Modify the instrument panels, install light as- Up to 92 work-hours × 5,292 Up to $13,112 ............. Up to $20,926,752
semblies, modify the wire bundles, and in- $85 per hour = up to
stall a new circuit breaker (concurrent re- $7,820.
quirements) [retained actions from AD
2012–19–11, Amendment 39–17206 (77 FR
60296, October 3, 2012), for 1,596 air-
planes].
Modify the instrument panels, install light as- Up to 92 work-hours × 5,292 Up to $13,112 ............. Up to $288,464
semblies, modify the wire bundles, and in- $85 per hour = up to
stall a new circuit breaker (concurrent re- $7,820.
quirements) [new actions for 22 airplanes].
rmajette on DSK2TPTVN1PROD with RULES
Authority for This Rulemaking Section 106, describes the authority of detail the scope of the Agency’s
Title 49 of the United States Code the FAA Administrator. Subtitle VII, authority.
specifies the FAA’s authority to issue Aviation Programs, describes in more We are issuing this rulemaking under
rules on aviation safety. Subtitle I, the authority described in Subtitle VII,
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![48016 Federal Register / Vol. 80, No. 154 / Tuesday, August 11, 2015 / Rules and Regulations
Part A, Subpart III, Section 44701, (b) Affected ADs 1165, Revision 3, dated July 16, 2014 (for
‘‘General requirements.’’ Under that This AD replaces AD 2012–19–11, Model 737–600, –700, –700C, –800, –900,
section, Congress charges the FAA with Amendment 39–17206 (77 FR 60296, October and –900ER series airplanes). As of the
promoting safe flight of civil aircraft in 3, 2012). effective date of this AD use Boeing Special
Attention Service Bulletin 737–21–1165,
air commerce by prescribing regulations (c) Applicability Revision 3, dated July 16, 2014.
for practices, methods, and procedures
This AD applies to The Boeing Company
the Administrator finds necessary for (h) Retained Concurrent Actions
airplanes, certificated in any category, as
safety in air commerce. This regulation identified in paragraphs (c)(1) and (c)(2) of This paragraph restates the concurrent
is within the scope of that authority this AD. actions required by paragraph (h) of AD
because it addresses an unsafe condition (1) Model 737–100, –200, –200C, –300,— 2012–19–11, Amendment 39–17206 (77 FR
that is likely to exist or develop on 400, and –500 series airplanes, as identified 60296, October 3, 2012), with revised service
products identified in this rulemaking in Boeing Special Attention Service Bulletin information. For airplanes identified in
action. 737–21–1164, Revision 2, dated August 23, Boeing Alert Service Bulletin 737–31A1325,
2013. dated January 11, 2010 (for Model 737–100,
Regulatory Findings (2) Model 737–600, –700, –700C, –800, –200, –200C, –300, –400, and –500 series
We have determined that this AD will –900, and –900ER series airplanes, as airplanes); and Boeing Alert Service Bulletin
identified in Boeing Special Attention 737–31A1332, Revision 3, dated March 28,
not have federalism implications under
Service Bulletin 737–21–1165, Revision 3, 2012 (for Model 737–600, –700, –700C, –800,
Executive Order 13132. This AD will dated July 16, 2014. –900, and –900ER series airplanes); except as
not have a substantial direct effect on provided by paragraph (i) of this AD: Before
the States, on the relationship between (d) Subject
or concurrently with accomplishment of the
the national government and the States, Air Transport Association (ATA) of actions specified in paragraph (g) of this AD,
or on the distribution of power and America Code 21, Air Conditioning. as applicable, modify the instrument panels,
responsibilities among the various (e) Unsafe Condition install light assemblies, modify the wire
levels of government. bundles, and install a new circuit breaker, in
This AD was prompted by the report of a accordance with the Accomplishment
For the reasons discussed above, I
flightcrew not receiving an aural warning Instructions of the applicable service
certify that this AD: during a lack of cabin pressurization event.
(1) Is not a ‘‘significant regulatory information in paragraphs (h)(1) and (h)(2) of
We are issuing this AD to prevent the loss of this AD; except as provided by paragraph
action’’ under Executive Order 12866, cabin altitude warning, which could delay
(2) Is not a ‘‘significant rule’’ under (k)(2) of this AD.
flightcrew recognition of a lack of cabin (1) The service information for Model 737–
DOT Regulatory Policies and Procedures pressurization, and could result in 100, –200, –200C, –300, –400, and –500
(44 FR 11034, February 26, 1979), incapacitation of the flightcrew due to series airplanes as identified in paragraphs
(3) Will not affect intrastate aviation hypoxia (a lack of oxygen in the body), and
(h)(1)(i), (h)(1)(ii), and (h)(1)(iii), of this AD.
in Alaska, and consequent loss of control of the airplane.
As of the effective date of this AD, use Boeing
(4) Will not have a significant (f) Compliance Alert Service Bulletin 737–31A1325,
economic impact, positive or negative, Revision 2, dated June 5, 2014 (for Model
on a substantial number of small entities Comply with this AD within the
compliance times specified, unless already 737–100, –200, –200C, –300, –400, and –500
under the criteria of the Regulatory done. series airplanes), for the actions specified in
Flexibility Act. paragraph (h) of this AD.
(g) Retained Installation (i) Boeing Alert Service Bulletin 737–
List of Subjects in 14 CFR Part 39 31A1325, dated January 11, 2010.
This paragraph restates the actions
Air transportation, Aircraft, Aviation required by paragraph (g) of AD 2012–19–11, (ii) Boeing Alert Service Bulletin 737–
safety, Incorporation by reference, Amendment 39–17206 (77 FR 60296, October 31A1325, Revision 1, dated July 5, 2012.
Safety. 3, 2012), with revised service information. (iii) Boeing Alert Service Bulletin 737–
Within 72 months after November 7, 2012 31A1325, Revision 2, dated June 5, 2014.
Adoption of the Amendment (the effective date of AD 2012–19–11), install (2) Boeing Alert Service Bulletin 737–
Accordingly, under the authority a redundant cabin altitude pressure switch, 31A1332, Revision 3, dated March 28, 2012;
replace the aural warning module (AWM) or Boeing Alert Service Bulletin 737–
delegated to me by the Administrator,
with a new or reworked AWM, and change 31A1332, Revision 4, dated October 31, 2013
the FAA amends 14 CFR part 39 as (for Model 737–600, –700, –700C, –800,
certain wire bundles or connect certain
follows: capped and stowed wires, as applicable, in –900, and –900ER series airplanes). As of the
accordance with the Accomplishment effective date of this AD, use Boeing Alert
PART 39—AIRWORTHINESS Instructions of the applicable service Service Bulletin 737–31A1332, Revision 4,
DIRECTIVES information in paragraphs (g)(1) and (g)(2) of dated October 31, 2013 (for Model 737–600,
this AD; except as provided by paragraph –700, –700C, –800, –900, and –900ER series
■ 1. The authority citation for part 39 (k)(1) of this AD. airplanes), for the actions specified in
continues to read as follows: (1) Boeing Special Attention Service paragraph (h) of this AD.
Authority: 49 U.S.C. 106(g), 40113, 44701. Bulletin 737–21–1164, Revision 1, dated May
(i) New Concurrent Requirement
17, 2012; or Boeing Special Attention Service
§ 39.13 [Amended] Bulletin 737–21–1164, Revision 2, dated For airplanes having variable numbers
August 23, 2013 (for Model 737–100, –200, YA001 through YA008 inclusive, YA251,
■ 2. The FAA amends § 39.13 by
–200C, –300, –400, and –500 series YA501 through YA508 inclusive, and YC321
removing Airworthiness Directive (AD) through YC325 inclusive: Before or
airplanes). As of the effective date of this AD,
2012–19–11, Amendment 39–17206 (77 use Boeing Special Attention Service Bulletin concurrently with accomplishment of the
FR 60296, October 3, 2012), and adding 737–21–1164, Revision 2, dated August 23, actions specified in paragraph (g) of this AD,
the following new AD: 2013, for the actions specified in paragraph or within 18 months after the effective date
rmajette on DSK2TPTVN1PROD with RULES
2015–16–01 The Boeing Company: (g) of this AD. of this AD, whichever occurs later, modify
Amendment 39–18226; Docket No. (2) Boeing Special Attention Service the instrument panels, install light
FAA–2014–0487; Directorate Identifier Bulletin 737–21–1165, Revision 1, dated July assemblies, modify the wire bundles, and
2014–NM–026–AD. 16, 2010, as revised by Boeing Special install a new circuit breaker, in accordance
Attention Service Bulletin 737–21–1165, with the Accomplishment Instructions of
(a) Effective Date Revision 2, dated April 30, 2012; or Boeing Boeing Alert Service Bulletin 737–31A1332,
This AD is effective September 15, 2015. Special Attention Service Bulletin 737–21– Revision 4, dated October 31, 2013.
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![48018 Federal Register / Vol. 80, No. 154 / Tuesday, August 11, 2015 / Rules and Regulations
Issued in Renton, Washington, on July 22, Engine Certification Office, FAA, Engine General requirements.’’ Under that
2015. & Propeller Directorate, 12 New England section, Congress charges the FAA with
Victor Wicklund, Executive Park, Burlington, MA 01803; promoting safe flight of civil aircraft in
Acting Manager, Transport Airplane phone: 781–238–7747; fax: 781–238– air commerce by prescribing regulations
Directorate, Aircraft Certification Service. 7199; email: katheryn.malatek@faa.gov. for practices, methods, and procedures
[FR Doc. 2015–19316 Filed 8–10–15; 8:45 am] SUPPLEMENTARY INFORMATION: the Administrator finds necessary for
BILLING CODE 4910–13–P safety in air commerce. This regulation
Discussion is within the scope of that authority
We issued a notice of proposed because it addresses an unsafe condition
DEPARTMENT OF TRANSPORTATION rulemaking (NPRM) to amend 14 CFR that is likely to exist or develop on
part 39 by adding an AD that would products identified in this rulemaking
Federal Aviation Administration apply to the specified products. The action.
NPRM was published in the Federal
14 CFR Part 39 Register on April 29, 2015 (80 FR Regulatory Findings
[Docket No. FAA–2015–0095; Directorate 23741). The NPRM proposed to correct We determined that this AD will not
Identifier 2015–NE–01–AD; Amendment 39– an unsafe condition for the specified have federalism implications under
18228; AD 2015–16–03] products. The MCAI states: Executive Order 13132. This AD will
There were a number of pre-MOD/SB 72– not have a substantial direct effect on
RIN 2120–AA64 the States, on the relationship between
7730 High Pressure Turbine (HPT) blade
failures, with some occurring within a the national government and the States,
Airworthiness Directives; Rolls-Royce
relatively short time. Engineering analysis or on the distribution of power and
plc Turbofan Engines carried out by RR on those occurrences responsibilities among the various
AGENCY: Federal Aviation indicates that certain pre-MOD/SB 72–7730 levels of government.
blades, Part Number (P/N) UL32958 and P/ For the reasons discussed above, I
Administration (FAA), DOT.
N UL21691 (hereafter referred to as ‘affected
ACTION: Final rule. HPT blade’), with an accumulated life of
certify this AD:
6500 flight hours (FH) since new or more, (1) Is not a ‘‘significant regulatory
SUMMARY: We are adopting a new have an increased risk of in-service failure. action’’ under Executive Order 12866,
airworthiness directive (AD) for certain This condition, if not corrected, could lead (2) Is not a ‘‘significant rule’’ under
Rolls-Royce plc (RR) RB211–524B–02, to HPT blade failure, release of debris and the DOT Regulatory Policies and
RB211–524B2–19, RB211–524B3–02, consequent (partial or complete) loss of Procedures (44 FR 11034, February 26,
RB211–524B4–02, RB211–524B4–D–02, engine power, possibly resulting in reduced 1979),
RB211–524C2–19, RB211–524D4–19, control of the aeroplane. (3) Will not affect intrastate aviation
RB211–524D4–39, and RB211–524D4X– in Alaska to the extent that it justifies
19 turbofan engines. This AD requires Comments making a regulatory distinction, and
removing affected high-pressure turbine We gave the public the opportunity to (4) Will not have a significant
(HPT) blades. This AD was prompted by participate in developing this AD. We economic impact, positive or negative,
several failures of affected HPT blades. received no comments on the NPRM (80 on a substantial number of small entities
We are issuing this AD to prevent FR 23741, April 29, 2015). under the criteria of the Regulatory
failure of the HPT blade, which could Conclusion Flexibility Act.
lead to failure of one or more engines,
We reviewed the available data and List of Subjects in 14 CFR Part 39
loss of thrust control, and damage to the
airplane. determined that air safety and the Air transportation, Aircraft, Aviation
public interest require adopting this AD safety, Incorporation by reference,
DATES: This AD becomes effective
as proposed. Safety.
September 15, 2015.
Costs of Compliance Adoption of the Amendment
Examining the AD Docket
We estimate that this AD affects 6 Accordingly, under the authority
You may examine the AD docket on
engines installed on airplanes of U.S. delegated to me by the Administrator,
the Internet at http://
registry. We also estimate that it will the FAA amends 14 CFR part 39 as
www.regulations.gov by searching for
take about 4 hours per engine to comply follows:
and locating Docket No. FAA–2015–
with this AD. The average labor rate is
0095; or in person at the Docket
$85 per hour. Pro-rated cost of required PART 39—AIRWORTHINESS
Management Facility between 9 a.m.
parts is about $250,000 per engine. DIRECTIVES
and 5 p.m., Monday through Friday,
Based on these figures, we estimate the
except Federal holidays. The AD docket ■ 1. The authority citation for part 39
cost of this AD on U.S. operators to be
contains this AD, the mandatory continues to read as follows:
$1,502,040.
continuing airworthiness information
(MCAI), the regulatory evaluation, any Authority for This Rulemaking Authority: 49 U.S.C. 106(g), 40113, 44701.
comments received, and other Title 49 of the United States Code § 39.13 [Amended]
information. The address for the Docket specifies the FAA’s authority to issue
Office (phone: 800–647–5527) is ■ 2. The FAA amends § 39.13 by adding
rules on aviation safety. Subtitle I, the following new airworthiness
Document Management Facility, U.S. section 106, describes the authority of
Department of Transportation, Docket directive (AD):
rmajette on DSK2TPTVN1PROD with RULES
the FAA Administrator. ‘‘Subtitle VII:
Operations, M–30, West Building Aviation Programs,’’ describes in more 2015–16–03 Rolls-Royce plc: Amendment
Ground Floor, Room W12–140, 1200 39–18228; Docket No. FAA–2015–0095;
detail the scope of the Agency’s Directorate Identifier 2015–NE–01–AD.
New Jersey Avenue SE., Washington, authority.
DC 20590. We are issuing this rulemaking under (a) Effective Date
FOR FURTHER INFORMATION CONTACT: the authority described in ‘‘Subtitle VII, This AD becomes effective September 15,
Katheryn Malatek, Aerospace Engineer, Part A, Subpart III, Section 44701: 2015.
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Document Created: 2016-09-27 22:25:07
Document Modified: 2016-09-27 22:25:07
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective September 15, 2015. | |
| Contact | Francis Smith, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057- 3356; telephone: 425-917-6596; fax: 425-917-6590; email: [email protected] | |
| FR Citation | 80 FR 48013 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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