81 FR 26115 - Airworthiness Directives; Airbus Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 81, Issue 84 (May 2, 2016)
Federal Aviation Administration
Federal Register Volume 81, Issue 84 (May 2, 2016)
| Page Range | 26115-26121 | |
| FR Document | 2016-09119 |
[Federal Register Volume 81, Number 84 (Monday, May 2, 2016)] [Rules and Regulations] [Pages 26115-26121] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2016-09119] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2015-2458; Directorate Identifier 2014-NM-122-AD; Amendment 39-18468; AD 2016-07-23] RIN 2120-AA64 Airworthiness Directives; Airbus Airplanes AGENCY: Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. ----------------------------------------------------------------------- SUMMARY: We are adopting a new airworthiness directive (AD) for all Airbus Model A318, A319, A320, and A321 series airplanes. This AD was prompted by reports of in-flight loss of fixed and hinged main landing gear (MLG) fairings, and reports of post-modification MLG fixed fairing assemblies that have wear and corrosion. This AD requires, for certain airplanes, repetitive replacements of the fixed fairing upper and lower attachment studs of both left-hand (LH) and the right-hand (RH) MLG; and repetitive inspections for corrosion, wear, fatigue cracking, and loose studs of each forward stud assembly of the fixed fairing door upper and lower forward attachment of both LH and RH MLG; and replacement if necessary. This AD also provides an optional terminating modification for the repetitive replacements of the fixed fairing upper and lower attachment studs. We are issuing this AD to prevent in-flight detachment of an MLG fixed fairing and consequent damage to the airplane. DATES: This AD becomes effective June 6, 2016. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of June 6, 2016. ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 2458; or in person at the 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. For service information identified in this final rule, contact Airbus, Airworthiness Office--EIAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email [email protected]; Internet http://www.airbus.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. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 2458. FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; fax 425-227-1149. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Airbus Model A318, A319, A320, and A321 series airplanes. The NPRM published in the Federal Register on July 8, 2015 (80 FR 38992) (``the NPRM''). The NPRM was prompted by reports of in-flight loss of fixed and hinged MLG fairings, and reports of post-modification MLG fixed fairing assemblies that have wear and corrosion. The NPRM proposed to require, for certain airplanes, repetitive replacements of the fixed fairing upper and lower attachment studs of both the LH and RH MLG; and repetitive inspections for corrosion, wear, fatigue cracking, and loose studs of each forward stud assembly of the fixed fairing door upper and lower forward attachment of both LH and RH MLG; and replacement if necessary. The NPRM also proposed an optional terminating modification for the repetitive replacements of the fixed fairing upper and lower attachment studs. We are issuing this AD to prevent in-flight detachment of an MLG fixed fairing and consequent damage to the airplane. The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Airworthiness Directive 2015-0001R1, dated January 15, 2015 (referred to after this as the Mandatory Continuing Airworthiness Information, or ``the MCAI''), to correct an unsafe condition for all Airbus Model A318, A319, A320, and A321 series airplanes. The MCAI states: Several occurrences of in-flight loss of main landing gear (MLG) fixed and hinged fairings were reported. The majority of reported events occurred following scheduled maintenance activities. One result of the investigation was that a discrepancy between the drawing and the maintenance manuals was discovered. The maintenance documents were corrected to prevent mis-rigging of the MLG fixed and hinged fairings, which could induce fatigue cracking. Airbus issued Service Bulletin (SB) A320-52-1083, providing instructions for a one-time inspection of the MLG fixed fairing composite insert and the surrounding area, replacement of the adjustment studs at the lower forward position and adjustment to the new clearance tolerances. That SB was replaced by Airbus SB A320-52- 1100 (mod 27716) introducing a re-designed location stud, rod end and location plate at the forward upper and lower leg fixed-fairing [[Page 26116]] positions. Subsequently, reports were received of post-mod 27716/ post-SB A320-52-1100 MLG fixed fairing assemblies with corrosion, which could also induce cracking. This condition, if not detected and corrected, could lead to further cases of in-flight detachment of a MLG fixed fairing, possibly resulting in injury to persons on the ground and/or damage to the aeroplane. To address this potential unsafe condition, EASA issued AD 2014- 0096 [http://ad.easa.europa.eu/blob/easa_ad_2014_0096_superseded.pdf/AD_2014-0096_1] to require [for certain airplanes] repetitive detailed inspections (DET) of the MLG fixed fairings, and, depending on findings, accomplishment of applicable corrective actions. That [EASA] AD also prohibited installation of certain MLG fixed fairing rod end assemblies and studs as replacement parts on aeroplanes incorporating Airbus mod 27716 in production, or modified in accordance with Airbus SB A320- 52-1100 (any revision) in service. Since EASA AD 2014-0096 was issued, Airbus developed an alternative inspection programme to meet the AD requirements. In addition, a terminating action (mod 155648) was developed, which is to be made available for in service aeroplanes through Airbus SB A320-52-1165. For the reasons described above, this [EASA] AD retains the requirements of EASA AD 2014-0096, which is superseded, and adds an optional terminating action for the repetitive inspections. For post-mod aeroplanes, i.e., incorporating Airbus mod 155648 in production, or modified by Airbus SB A320-52-1165 in service, the only remaining requirement is to ensure that pre-mod components are no longer installed. Prompted by these developments, EASA issued AD * * *, retaining the requirements of EASA AD 2014-0096, which was superseded, and adding an optional terminating action for the repetitive inspections. For post-mod aeroplanes, i.e., incorporating Airbus mod 155648 in production, or modified by Airbus SB A320-52-1165 in service, the only remaining requirement is to ensure that pre-mod components are no longer installed. Since that [EASA] AD was issued, it was discovered that a certain plate support, Part Number (P/N) D5285600620000 as listed in Table 3 of the [EASA] AD, remains part of the post SB A320-52-1165 configuration and is therefore not affected by any prohibition of installation--paragraph (11) of the [EASA] AD. In addition, an error was detected in Table 1 of the [EASA] AD (missing P/N plate support) and paragraph (9) was found to be incorrectly worded. For the reasons described above, this [EASA] AD is revised to introduce the necessary corrections. Required actions also include, for airplanes in Airbus pre-Airbus Modification 27716 and pre-Airbus Service Bulletin A320-52-1100 configuration on which certain components have been installed, repetitive replacements of the fixed fairing upper and lower attachment studs of both the LH and RH MLG. An optional terminating modification also is provided for the repetitive replacements of the fixed fairing upper and lower attachment studs. The optional terminating modification includes a resonance frequency inspection for debonding of the composite insert and delamination of the honeycomb area around the insert, and applicable corrective actions if necessary; and installation of new studs, rod ends, and location plates at the forward upper and lower leg fixed- fairing positions. An additional optional terminating modification, for airplanes in pre-Airbus Modification 27716 and pre-Airbus Service Bulletin A320-52- 1100 configuration, includes installation of a locking device, new studs, rod ends, and location plates at the forward upper and lower leg fixed-fairing positions. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015- 2458. Comments We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA's response to each comment. Request To Revise Applicability in SUMMARY Section of the NPRM United Airlines (UAL) requested that we revise the SUMMARY section of the NPRM to include Model A320 series airplanes. We agree with the commenter's request. The published version of the NPRM SUMMARY inadvertently did not include Model A320 series airplanes. We have revised the SUMMARY section of this final rule accordingly. Request To Revise Inspection Findings UAL requested that we revise paragraphs (i), (k), and (m) of the proposed AD, by replacing the term ``fatigue'' with ``deformation.'' UAL stated that the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, dated February 4, 2014, do not provide any specific method for doing a detailed inspection for indications of fatigue. We disagree with the commenter's Request to replace the term ``fatigue'' with ``deformation.'' The intent of the Airbus service information and the FAA AD is to inspect for ``fatigue cracking.'' For clarity, we have revised the SUMMARY and Discussion sections of this final rule, and paragraphs (i), (k), and (m) of this AD, by changing ``fatigue'' to ``fatigue cracking.'' Request To Use Revised Service Information American Airlines (AAL) requested that we revise the proposed AD to reference Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. We agree with the commenter's request. No additional work is required by this revision of the service information. We have revised paragraphs (g), (i), (k), (l), and (m) of this AD to reference Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. We have added credit for the actions required by paragraphs (g), (i), (k), (l), and (m) of this AD, if those actions were performed before the effective date of this AD using Airbus Service Bulletin A320-52-1163, dated February 4, 2014. Request To Revise Re-Identification of Fairing Part Number AAL requested that we revise paragraphs (k), (l), (m), and (n) of the proposed AD to remove the re-identification of the fairing part number specified in Airbus Service Bulletin A320-52-1165, including Appendix 01, dated November 3, 2014, on airplanes that are pre-Airbus Modification 27716 and post-modification Airbus Service Bulletin A320- 52-1100. AAL stated that a discrepancy in Airbus Service Bulletin A320- 52-1165, including Appendix 01, dated November 3, 2014, makes it impossible to re-identify the fairing part number. We agree with AAL that Airbus Service Bulletin A320-52-1165, including Appendix 01, dated November 3, 2014, has a discrepancy in the re-identification of the fairing part number. Airbus has revised the instructions for re-identification of the fairing part number for pre- Airbus Modification 27716 and post-modification Airbus Service Bulletin A320-52-1100 configuration airplanes in Airbus Service Bulletin A320- 52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. We have revised paragraphs (k), (l)(1), (m), and (n)(3) of this AD to reference Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015, as the appropriate source of service information for the applicable actions in those paragraphs. [[Page 26117]] Request To Specify Allowable Corrosion Limits AAL requested that we specify the allowable corrosion limits that would allow release of the airplane into service with corroded stud assemblies. AAL stated that paragraph (l)(2) of the proposed AD allows an operator to release an airplane into service with corrosion on the stud assembly, without accomplishing any corrective action at the time of the corrosion findings, provided that the stud assembly is not loose. We disagree with the commenter's request to specify corrosion limits in the AD. The corrosion level(s) and subsequent action(s) in general are defined in the AAL corrosion prevention and corrosion control maintenance program (CPCP). For this AD, operators have an option to either replace the affected stud assemblies (that have corrosion but the corroded stud is not loose) before further flight as specified in paragraph (l)(1) of this AD or perform repetitive inspections as specified in paragraph (l)(2) of this AD until corrective actions are done as specified in paragraph (m) of this AD. We have not changed this AD in this regard. Request to Add Paragraph To Specify No Reporting Is Required UAL requested that we add a paragraph in the proposed AD, to remove the Airbus Service Bulletin A320-52-1163, dated February 4, 2014, requirement to report all inspection findings to Airbus. We agree with the commenter's request. We have added new paragraph (q) to this AD, which states that although Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015, specifies to submit certain information to the manufacturer, and specifies that action as ``RC'' (Required for Compliance), this AD does not include that requirement. We have redesignated subsequent paragraphs accordingly. Although not required to do so by this AD, we recommend that operators submit such information based on the Airbus service information request. This information may be beneficial to Airbus for product improvements. Request To Clarify Repetitive Inspection Interval AAL requested clarification of the repetitive inspection interval in paragraph (l)(2) of the proposed AD. AAL stated that, if Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015, was referenced in this AD, this service information includes an option for a repetitive inspection interval of 750 flight cycles. We agree to clarify the repetitive inspection interval in paragraph (l)(2) of this AD. The 4-month repetitive inspection interval specified in paragraph (l)(2) of this AD has precedence over the 750-flight-cycle interval specified in Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. We have not changed this AD in this regard. Request To Revise Corrective Actions Delta Airlines (DAL) requested that we revise paragraph (k) of the proposed AD to require the replacement of only the affected assembly and not the upper and lower fixed fairing forward attachment assemblies of the LH and RH MLG because of one finding on an affected assembly. DAL stated that paragraph (k) of the proposed AD places an undue burden on operators by having to replace airworthy parts because one of the affected parts was found with a finding of corrosion, wear, fatigue cracking, or loose studs. We agree with the commenter's request. We agree with DAL that only parts with indication of corrosion, wear, fatigue cracking, or loose studs should be replaced. We have revised paragraph (k) of this AD to require replacing discrepant upper and lower fixed fairing forward attachment stud assemblies of the LH and RH MLG. Request To Revise Exceptions to AD Actions DAL requested that we revise paragraph (o) of the proposed AD to indicate that paragraphs (g) through (n) of the proposed AD are not applicable to post-Airbus Modification 155648 configuration airplanes. DAL stated that paragraph (o) of the proposed AD provides relief from the requirements of paragraphs (g) and (i) of the proposed AD, but related paragraphs (h), (j), (k), (l), and (n) of the proposed AD are not included in the relief. We agree with the commenter that the intent of this AD is to not require paragraphs (g) through (n) of this AD if conditions stated in paragraph (o) of this AD are met. The requirements of paragraphs (k), (l), and (m) of this AD are conditional and will not apply to operators that are not required to do paragraphs (g) and (i) of this AD. Paragraph (n) of this AD is an explanation of terminating actions. We have clarified paragraphs (h) and (j) of this AD to refer to the exempt airplanes. Request To Delete Paragraph (p)(1) of the Proposed AD, and Change Wording in Paragraphs (p)(1) Through (p)(4) of the Proposed AD DAL requested that we delete paragraph (p)(1) of the proposed AD. DAL stated that paragraph (p)(1) of the proposed AD applies to pre- Airbus Modification 27716 and pre-Airbus Service Bulletin A320-52-1100 configuration airplanes, but provides a requirement for post-Airbus Modification 27716 or post-Airbus Service Bulletin A320-52-1100 configuration airplanes, which is redundant with the requirements of paragraph (p)(2) of the proposed AD. Delta also requested that we replace the word ``and'' in paragraphs (p)(1) through (p)(4) of the proposed AD with ``or'' to clarify the requirement and be consistent with the wording used in paragraph (i) of the proposed AD. We partially agree with the commenter's requests. We agree with DAL to revise paragraphs (p)(1) through (p)(4) of this AD to replace ``and'' with ``or.'' We do not agree with deleting paragraph (p)(1) of this AD. Paragraph (p)(1) of this AD is applicable for airplanes in pre-Airbus Modification 27716 or pre-Airbus Service Bulletin A320-52- 1100 configuration, and the parts prohibition is effective after doing the actions provided in paragraph (n)(2) of this AD. Paragraph (p)(2) of this AD is applicable for airplanes in post-Airbus Modification 27716 or post-Airbus Service Bulletin A320-52-1100 configuration, and the parts prohibition is effective as of the effective date of this AD. Therefore, paragraphs (p)(1) and (p)(2) of this AD are not redundant. We have not changed this AD in this regard. Request To Delete Paragraph (p)(3) of the Proposed AD DAL requested that we delete paragraph (p)(3) of the proposed AD. DAL stated that paragraph (p)(3) of the proposed AD applies to pre- Airbus Modification 155648 and pre-Airbus Service Bulletin A320-52-1165 configuration airplanes, but provides a requirement for post-Airbus Modification 155648 or post-Airbus Service Bulletin A320-52-1165, which is redundant with the requirements of paragraph (p)(4) of the proposed AD. We do not agree with the commenter's request. Paragraph (p)(3) of this AD is applicable for airplanes which have not been modified to post-Airbus Modification 155648 or post-Airbus Service Bulletin A320- 52-1165 configuration. Paragraph (p)(4) of this AD is applicable for airplanes that are in post-Airbus Modification 155648 or [[Page 26118]] post-Airbus Service Bulletin A320-52-1165 configuration. We have not changed this AD in this regard. 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 for correcting the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM. 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: Airbus Service Bulletin A320-52-1100, Revision 01, dated March 12, 1999. This service information describes procedures for modification of the airplane to post-Airbus Modification 27716 configuration (by replacing the location stud, rod end, and location plate at the forward upper and lower leg fixed-fairing positions of the MLG door assemblies). The modification includes a resonance frequency inspection for debonding of the composite insert and delamination of the honeycomb area around the insert, and applicable corrective actions. Corrective actions include repairing the insert. The actions in this service information are an optional terminating modification. Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. This service information describes procedures for inspection of the fixed fairing forward attachments of the MLG door assemblies, and replacement of the fixed fairing upper and lower attachment studs of the LH and RH MLG door assemblies. Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. This service information describes procedures for replacing the fairing attachment stud assemblies of the MLG door assembly with new assemblies. The actions in this service information are an optional terminating modification. 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. Explanation of ``RC'' (Required for Compliance) (RC) Procedures and Tests in Service Information The FAA worked in conjunction with industry, under the Airworthiness Directive Implementation Aviation Rulemaking Committee (ARC), to enhance the AD system. One enhancement was a new process for annotating which procedures and tests in the service information are required for compliance with an AD. Differentiating these procedures and tests from other tasks in the service information is expected to improve an owner's/operator's understanding of crucial AD requirements and helps to provide consistent judgment in AD compliance. The procedures and tests identified as RC in any service information have a direct effect on detecting, preventing, resolving, or eliminating an identified unsafe condition. As specified in a NOTE under the Accomplishment Instructions of the specified service information, procedures and tests that are identified as RC in any service information must be done to comply with the AD. However, procedures and tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an alternative method of compliance (AMOC), provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC will require approval of an AMOC. Costs of Compliance We estimate that this AD affects 851 airplanes of U.S. registry. We also estimate that it will take about 18 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $85 per work-hour. Required parts will cost about $4,110 per product. Based on these figures, we estimate the cost of this AD on U.S. operators to be $4,799,640, or $5,640 per product. We estimate that the optional terminating modification would take about 18 work-hours and require parts costing $4,110, for a cost of $5,640 per product. In addition, we estimate that any necessary follow-on actions would take about 18 work-hours and require parts costing $4,110, for a cost of $5,640 per product. We have no way of determining the number of aircraft that might need these actions. According to the manufacturer, some of the costs of this AD might be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all costs in our cost estimate. 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, 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 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 the 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. Examining the AD Docket You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2015-2458; or in [[Page 26119]] 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 street address for the Docket Operations office (telephone 800-647-5527) is in the ADDRESSES section. 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 adding the following new airworthiness directive (AD): 2016-07-23 Airbus: Amendment 39-18468. Docket No. FAA-2015-2458; Directorate Identifier 2014-NM-122-AD. (a) Effective Date This AD becomes effective June 6, 2016. (b) Affected ADs None. (c) Applicability This AD applies to the Airbus airplanes identified in paragraphs (c)(1) through (c)(4) of this AD, certificated in any category, all manufacturer serial numbers. (1) Airbus Model A318-111, -112, -121, and -122 airplanes. (2) Airbus Model A319-111, -112, -113, -114, -115, -131, -132, and -133 airplanes. (3) Airbus Model A320-211, -212, -214, -231, -232, and -233 airplanes. (4) Airbus Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. (d) Subject Air Transport Association (ATA) of America Code 52, Doors. (e) Reason This AD was prompted by reports of in-flight loss of fixed and hinged main landing gear (MLG) fairings, and reports of post- modification MLG fixed fairing assemblies that have wear and corrosion. We are issuing this AD to prevent in-flight detachment of an MLG fixed fairing and consequent damage to the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Repetitive Replacements For airplanes in pre-Airbus Modification 27716 and pre-Airbus Service Bulletin A320-52-1100 configuration, with any of the components installed that are identified in paragraphs (g)(1) through (g)(5) of this AD: At the applicable compliance time specified in paragraph (h) of this AD, replace fixed fairing upper and lower attachment studs of both left-hand (LH) and right-hand (RH) MLG, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. Repeat the replacements thereafter at intervals not to exceed 6,500 flight cycles. (1) Plate--support having part number (P/N) D5284024820000. (2) Plate--support P/N D5284024820200. (3) Stud--adjustment having P/N D5284024420000. (4) Rod end assembly (lower) having P/N D5284000500000. (5) Rod end assembly (upper) having P/N D5284000600000. (h) Compliance Times for the Requirements of Paragraph (g) of This AD For airplanes identified in paragraph (g) of this AD, except as provided by paragraph (o) of this AD: Do the initial replacement required by paragraph (g) of this AD at the latest of the times specified in paragraphs (h)(1) through (h)(4) of this AD. (1) Before the accumulation of 6,500 total flight cycles since the airplane's first flight. (2) Within 6,500 flight cycles since the last installation of a pre-Airbus Modification 27716 stud on the airplane. (3) Within 1,500 flight cycles after the effective date of this AD. (4) Within 8 months after the effective date of this AD. (i) Repetitive Inspections For airplanes in post-Airbus Modification 27716 or post-Airbus Service Bulletin A320-52-1100 configuration, with any of the components installed that are identified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD: At the applicable compliance time specified in paragraph (j) of this AD, do a detailed inspection of the LH and RH MLG forward stud assemblies of the fixed fairing door upper and lower forward attachments of both LH and RH MLG for indications of corrosion, wear, fatigue cracking, and loose studs, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. Repeat the inspection thereafter at intervals not to exceed 12 months. Replacement of both LH and RH MLG forward stud assemblies on an airplane, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015, extends the interval for the next detailed inspection to 72 months; and the inspection must be repeated thereafter at intervals not to exceed 12 months. (1) Stud--adjustment having P/N D5285600720000. (2) Rod end assembly (lower) having P/N D5285600400000. (3) Rod end assembly (upper) having P/N D5285600500000. (j) Compliance Times for the Requirements of Paragraph (i) of This AD For airplanes identified in paragraph (i) of this AD, except as provided by paragraph (o) of this AD: Do the initial inspection required by paragraph (i) of this AD at the latest of the times specified in paragraphs (j)(1) through (j)(4) of this AD. (1) Before the accumulation of 72 months since the airplane's first flight. (2) Within 72 months since the last installation of a post- Airbus Modification 27716 assembly or since accomplishment of the actions specified in Airbus Service Bulletin A320-52-1100. (3) Within 1,500 flight cycles after the effective date of this AD. (4) Within 8 months after the effective date of this AD. (k) Corrective Action If any discrepancy (including any indication of corrosion, wear, fatigue cracking, or loose studs) of any MLG forward stud assembly is found during any inspection required by paragraph (i) of this AD, except as specified in paragraph (l) of this AD: Before further flight, replace the discrepant upper and lower fixed fairing forward stud assemblies of the LH and RH MLG, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015; or Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. (l) Corrective Action or Repetitive Inspections for Certain Corrosion Findings If any corrosion is found during any inspection required by paragraph (i) of this AD on any MLG fixed fairing forward stud assembly (upper, lower, LH or RH), but the corroded stud is not loose: Do the action specified in paragraph (l)(1) or (l)(2) of this AD. (1) Before further flight, replace the affected assembly, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015; or Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. (2) Within 4 months after finding corrosion, and thereafter at intervals not to exceed 4 months, do a detailed inspection for indications of corrosion, wear, fatigue cracking, and loose studs of the forward stud assembly of the affected (LH or RH) MLG, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. [[Page 26120]] (m) Corrective Action for Inspections Specified in Paragraph (l)(2) of This AD If any indication of wear, fatigue cracking, or loose studs of any forward stud assembly is found during any inspection required by paragraph (l)(2) of this AD: Before further flight, replace the affected (LH or RH) MLG fixed fairing forward stud assembly, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015; or Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. (n) Terminating Action (1) Replacement of parts on an airplane, as required by paragraph (g), (k), (l)(1), or (m) of this AD, does not constitute terminating action for the repetitive inspections required by paragraph (i) of this AD, except as specified in paragraph (n)(3) of this AD. (2) The repetitive replacements required by paragraph (g) of this AD may be terminated by modification of the airplane to post- Airbus Modification 27716 configuration, including a resonance frequency inspection for debonding of the composite insert and delamination of the honeycomb area around the insert, and all applicable corrective actions, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1100, Revision 01, dated March 12, 1999, provided all applicable corrective actions are done before further flight. Thereafter, refer to paragraph (i) of this AD to determine the compliance time for the next detailed inspection required by this AD. (3) Modification of an airplane, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015, constitutes terminating action for actions required by paragraphs (g) through (m) of this AD for the airplane on which the modification is done. (o) Exceptions to Certain AD Actions An airplane on which Airbus Modification 155648 has been embodied in production is not affected by the requirements of paragraphs (g) and (i) of this AD, provided that no affected component, identified by part number as listed paragraphs (g)(1) through (g)(5) and (i)(1) through (i)(3) of this AD, has been installed on that airplane since first flight of the airplane. (p) Parts Installation Prohibition (1) For airplanes in pre-Airbus Modification 27716 or pre-Airbus Service Bulletin A320-52-1100 configuration: No person may install a component identified in paragraphs (g)(1) through (g)(5) of this AD on any airplane after doing the actions provided in paragraph (n)(2) of this AD. (2) For airplanes in post-Airbus Modification 27716 or post Airbus Service Bulletin A320-52-1100 configuration: As of the effective date of this AD, no person may install a component identified in paragraphs (g)(1) through (g)(5) of this AD on any airplane. (3) For airplanes in pre-Airbus Modification 155648 or pre- Airbus Service Bulletin A320-52-1165 configuration: No person may install a component identified in paragraphs (g)(1) through (g)(5) and (i)(1) through (i)(3) of this AD on any airplane after doing the actions provided in paragraph (n)(3) of this AD. (4) For airplanes in post-Airbus Modification 155648 or post- Airbus Service Bulletin A320-52-1165 configuration: As of the effective date of this AD, no person may install a component identified in (g)(1) through (g)(5) and (i)(1) through (i)(3) of this AD on any airplane. (q) No Reporting Requirement Although Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015, specifies to submit certain information to the manufacturer, and specifies that action as ``RC'' (Required for Compliance), this AD does not include that requirement. (r) Credit for Previous Actions (1) This paragraph provides credit for optional actions provided by paragraph (n)(2) of this AD, if those actions were performed before the effective date of this AD using Airbus Service Bulletin A320-52-1100, dated December 7, 1998, which is not incorporated by reference in this AD. (2) This paragraph provides credit for the actions required by paragraphs (g), (i), (k), (l), and (m) of this AD, if those actions were performed before the effective date of this AD using Airbus Service Bulletin A320-52-1163, dated February 4, 2014, which is not incorporated by reference in this AD. (s) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, 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 International Branch, send it to ATTN: Sanjay Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057- 3356; telephone 425-227-1405; fax 425-227-1149. Information may be emailed to: [email protected]. 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. The AMOC approval letter must specifically reference this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA); or Airbus's EASA Design Organization Approval (DOA). If approved by the DOA, the approval must include the DOA-authorized signature. (3) Required for Compliance (RC): Except as specified in paragraph (q) of this AD, if any service information contains procedures or tests that are identified as RC, those procedures and tests must be done to comply with this AD; any procedures or tests that are not identified as RC are recommended. Those procedures and tests that are not identified as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the procedures and tests identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to procedures or tests identified as RC require approval of an AMOC. (t) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA Airworthiness Directive 2015-0001R1, dated January 15, 2015, for related information. This MCAI may be found in the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-2458. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (u)(3) and (u)(4) of this AD. (u) 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 this AD specifies otherwise. (i) Airbus Service Bulletin A320-52-1100, Revision 01, dated March 12, 1999. (ii) Airbus Service Bulletin A320-52-1163, Revision 01, including Appendix 01, dated June 22, 2015. (iii) Airbus Service Bulletin A320-52-1165, Revision 01, dated October 23, 2015, excluding Appendix 01, dated November 3, 2014, and including Appendix 02, dated October 23, 2015. (3) For service information identified in this AD, contact Airbus, Airworthiness Office--EIAS, 1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email [email protected]; Internet http://www.airbus.com. (4) You may view this 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. (5) 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 26121]] Issued in Renton, Washington, on April 13, 2016. Victor Wicklund, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2016-09119 Filed 4-29-16; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 81, No. 84 / Monday, May 2, 2016 / Rules and Regulations 26115
AMOC–REQUESTS@faa.gov. Before using ACTION: Final rule. 1601 Lind Avenue SW., Renton, WA
any approved AMOC, notify your appropriate 98057–3356; telephone 425–227–1405;
principal inspector, or lacking a principal SUMMARY: We are adopting a new fax 425–227–1149.
inspector, the manager of the local flight airworthiness directive (AD) for all
standards district office/certificate holding SUPPLEMENTARY INFORMATION:
Airbus Model A318, A319, A320, and
district office. The AMOC approval letter A321 series airplanes. This AD was Discussion
must specifically reference this AD. prompted by reports of in-flight loss of
(2) Contacting the Manufacturer: For any We issued a notice of proposed
fixed and hinged main landing gear rulemaking (NPRM) to amend 14 CFR
requirement in this AD to obtain corrective
actions from a manufacturer, the action must
(MLG) fairings, and reports of post- part 39 by adding an AD that would
be accomplished using a method approved modification MLG fixed fairing apply to all Airbus Model A318, A319,
by the Manager, International Branch, ANM– assemblies that have wear and A320, and A321 series airplanes. The
116, Transport Airplane Directorate, FAA; or corrosion. This AD requires, for certain NPRM published in the Federal
the EASA; or Airbus’s EASA DOA. If airplanes, repetitive replacements of the Register on July 8, 2015 (80 FR 38992)
approved by the DOA, the approval must fixed fairing upper and lower
include the DOA-authorized signature. (‘‘the NPRM’’). The NPRM was
attachment studs of both left-hand (LH) prompted by reports of in-flight loss of
(l) Special Flight Permits and the right-hand (RH) MLG; and fixed and hinged MLG fairings, and
Special flight permits, as described in
repetitive inspections for corrosion, reports of post-modification MLG fixed
Section 21.197 and Section 21.199 of the wear, fatigue cracking, and loose studs fairing assemblies that have wear and
Federal Aviation Regulations (14 CFR 21.197 of each forward stud assembly of the corrosion. The NPRM proposed to
and 21.199), are not allowed. fixed fairing door upper and lower require, for certain airplanes, repetitive
forward attachment of both LH and RH replacements of the fixed fairing upper
(m) Related Information
MLG; and replacement if necessary. and lower attachment studs of both the
(1) Refer to Mandatory Continuing This AD also provides an optional
Airworthiness Information (MCAI) EASA LH and RH MLG; and repetitive
terminating modification for the inspections for corrosion, wear, fatigue
Airworthiness Directive 2015–0038, dated
March 4, 2015, for related information. This
repetitive replacements of the fixed cracking, and loose studs of each
MCAI may be found in the AD docket on the fairing upper and lower attachment forward stud assembly of the fixed
Internet at http://www.regulations.gov by studs. We are issuing this AD to prevent fairing door upper and lower forward
searching for and locating Docket No. FAA– in-flight detachment of an MLG fixed attachment of both LH and RH MLG;
2015–6539. fairing and consequent damage to the and replacement if necessary. The
(2) For service information identified in airplane.
this AD, contact Airbus, Airworthiness NPRM also proposed an optional
DATES: This AD becomes effective June terminating modification for the
Office—EIAS, 1 Rond Point Maurice
Bellonte, 31707 Blagnac Cedex, France; 6, 2016. repetitive replacements of the fixed
telephone +33 5 61 93 36 96; fax +33 5 61 The Director of the Federal Register fairing upper and lower attachment
93 44 51; email account.airworth-eas@ approved the incorporation by reference studs. We are issuing this AD to prevent
airbus.com; Internet http://www.airbus.com. of certain publications listed in this AD in-flight detachment of an MLG fixed
You may view this service information at the as of June 6, 2016. fairing and consequent damage to the
FAA, ADDRESSES: You may examine the AD airplane.
Transport Airplane Directorate, 1601 Lind docket on the Internet at http:// The European Aviation Safety Agency
Avenue SW., Renton, WA. For information
on the availability of this material at the
www.regulations.gov by searching for (EASA), which is the Technical Agent
FAA, call 425–227–1221. and locating Docket No. FAA–2015– for the Member States of the European
2458; or in person at the Docket Union, has issued EASA Airworthiness
(n) Material Incorporated by Reference Management Facility, U.S. Department Directive 2015–0001R1, dated January
None. of Transportation, Docket Operations, 15, 2015 (referred to after this as the
Issued in Renton, Washington, on April 20, M–30, West Building Ground Floor, Mandatory Continuing Airworthiness
2016. Room W12–140, 1200 New Jersey Information, or ‘‘the MCAI’’), to correct
John P. Piccola, Jr., Avenue SE., Washington, DC. an unsafe condition for all Airbus
Acting Manager, Transport Airplane
For service information identified in Model A318, A319, A320, and A321
Directorate, Aircraft Certification Service. this final rule, contact Airbus, series airplanes. The MCAI states:
[FR Doc. 2016–10117 Filed 4–29–16; 8:45 am]
Airworthiness Office—EIAS, 1 Rond Several occurrences of in-flight loss of
Point Maurice Bellonte, 31707 Blagnac main landing gear (MLG) fixed and hinged
BILLING CODE 4910–13–P
Cedex, France; telephone +33 5 61 93 36 fairings were reported. The majority of
96; fax +33 5 61 93 44 51; email reported events occurred following
DEPARTMENT OF TRANSPORTATION account.airworth-eas@airbus.com; scheduled maintenance activities. One result
Internet http://www.airbus.com. You of the investigation was that a discrepancy
Federal Aviation Administration may view this referenced service between the drawing and the maintenance
information at the FAA, Transport manuals was discovered. The maintenance
Airplane Directorate, 1601 Lind Avenue documents were corrected to prevent mis-
14 CFR Part 39 rigging of the MLG fixed and hinged fairings,
SW., Renton, WA. For information on which could induce fatigue cracking.
[Docket No. FAA–2015–2458; Directorate the availability of this material at the
Identifier 2014–NM–122–AD; Amendment Airbus issued Service Bulletin (SB) A320–
39–18468; AD 2016–07–23]
FAA, call 425–227–1221. It is also 52–1083, providing instructions for a one-
available on the Internet at http:// time inspection of the MLG fixed fairing
mstockstill on DSK3G9T082PROD with RULES
RIN 2120–AA64 www.regulations.gov by searching for composite insert and the surrounding area,
and locating Docket No. FAA–2015– replacement of the adjustment studs at the
Airworthiness Directives; Airbus 2458. lower forward position and adjustment to the
Airplanes new clearance tolerances. That SB was
FOR FURTHER INFORMATION CONTACT: replaced by Airbus SB A320–52–1100 (mod
AGENCY: Federal Aviation Sanjay Ralhan, Aerospace Engineer, 27716) introducing a re-designed location
Administration (FAA), Department of International Branch, ANM–116, stud, rod end and location plate at the
Transportation (DOT). Transport Airplane Directorate, FAA, forward upper and lower leg fixed-fairing
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![26116 Federal Register / Vol. 81, No. 84 / Monday, May 2, 2016 / Rules and Regulations
positions. Subsequently, reports were optional terminating modification also Request To Use Revised Service
received of post-mod 27716/post-SB A320– is provided for the repetitive Information
52–1100 MLG fixed fairing assemblies with replacements of the fixed fairing upper
corrosion, which could also induce cracking. American Airlines (AAL) requested
and lower attachment studs.
This condition, if not detected and that we revise the proposed AD to
corrected, could lead to further cases of in-
The optional terminating modification
flight detachment of a MLG fixed fairing, includes a resonance frequency reference Airbus Service Bulletin A320–
possibly resulting in injury to persons on the inspection for debonding of the 52–1163, Revision 01, including
ground and/or damage to the aeroplane. composite insert and delamination of Appendix 01, dated June 22, 2015.
To address this potential unsafe condition, the honeycomb area around the insert, We agree with the commenter’s
EASA issued AD 2014–0096 [http:// and applicable corrective actions if request. No additional work is required
ad.easa.europa.eu/blob/easa_ad_2014_0096_ necessary; and installation of new studs,
superseded.pdf/AD_2014–0096_1] to require by this revision of the service
rod ends, and location plates at the information. We have revised
[for certain airplanes] repetitive detailed
inspections (DET) of the MLG fixed fairings,
forward upper and lower leg fixed- paragraphs (g), (i), (k), (l), and (m) of this
and, depending on findings, accomplishment fairing positions. AD to reference Airbus Service Bulletin
of applicable corrective actions. That [EASA] An additional optional terminating
A320–52–1163, Revision 01, including
AD also prohibited installation of certain modification, for airplanes in pre-Airbus
Appendix 01, dated June 22, 2015. We
MLG fixed fairing rod end assemblies and Modification 27716 and pre-Airbus
studs as replacement parts on aeroplanes Service Bulletin A320–52–1100 have added credit for the actions
incorporating Airbus mod 27716 in configuration, includes installation of a required by paragraphs (g), (i), (k), (l),
production, or modified in accordance with locking device, new studs, rod ends, and (m) of this AD, if those actions were
Airbus SB A320–52–1100 (any revision) in and location plates at the forward upper performed before the effective date of
service. this AD using Airbus Service Bulletin
Since EASA AD 2014–0096 was issued, and lower leg fixed-fairing positions.
You may examine the MCAI in the A320–52–1163, dated February 4, 2014.
Airbus developed an alternative inspection
programme to meet the AD requirements. In AD docket on the Internet at http:// Request To Revise Re-Identification of
addition, a terminating action (mod 155648) www.regulations.gov by searching for Fairing Part Number
was developed, which is to be made available and locating Docket No. FAA–2015–
for in service aeroplanes through Airbus SB 2458. AAL requested that we revise
A320–52–1165. paragraphs (k), (l), (m), and (n) of the
For the reasons described above, this Comments
[EASA] AD retains the requirements of EASA
proposed AD to remove the re-
We gave the public the opportunity to identification of the fairing part number
AD 2014–0096, which is superseded, and participate in developing this AD. The
adds an optional terminating action for the specified in Airbus Service Bulletin
repetitive inspections. For post-mod
following presents the comments A320–52–1165, including Appendix 01,
aeroplanes, i.e., incorporating Airbus mod received on the NPRM and the FAA’s dated November 3, 2014, on airplanes
155648 in production, or modified by Airbus response to each comment.
that are pre-Airbus Modification 27716
SB A320–52–1165 in service, the only
Request To Revise Applicability in and post-modification Airbus Service
remaining requirement is to ensure that pre-
mod components are no longer installed. SUMMARY Section of the NPRM Bulletin A320–52–1100. AAL stated that
Prompted by these developments, EASA United Airlines (UAL) requested that a discrepancy in Airbus Service Bulletin
issued AD * * *, retaining the requirements we revise the SUMMARY section of the A320–52–1165, including Appendix 01,
of EASA AD 2014–0096, which was NPRM to include Model A320 series dated November 3, 2014, makes it
superseded, and adding an optional impossible to re-identify the fairing part
airplanes.
terminating action for the repetitive number.
inspections. For post-mod aeroplanes, i.e.,
We agree with the commenter’s
incorporating Airbus mod 155648 in request. The published version of the We agree with AAL that Airbus
production, or modified by Airbus SB A320– NPRM SUMMARY inadvertently did not Service Bulletin A320–52–1165,
52–1165 in service, the only remaining include Model A320 series airplanes. including Appendix 01, dated
requirement is to ensure that pre-mod We have revised the SUMMARY section of November 3, 2014, has a discrepancy in
components are no longer installed. this final rule accordingly.
Since that [EASA] AD was issued, it was
the re-identification of the fairing part
discovered that a certain plate support, Part Request To Revise Inspection Findings number. Airbus has revised the
Number (P/N) D5285600620000 as listed in instructions for re-identification of the
UAL requested that we revise
Table 3 of the [EASA] AD, remains part of
paragraphs (i), (k), and (m) of the fairing part number for pre-Airbus
the post SB A320–52–1165 configuration and Modification 27716 and post-
is therefore not affected by any prohibition of proposed AD, by replacing the term
‘‘fatigue’’ with ‘‘deformation.’’ UAL modification Airbus Service Bulletin
installation—paragraph (11) of the [EASA] A320–52–1100 configuration airplanes
AD. In addition, an error was detected in stated that the Accomplishment
Instructions of Airbus Service Bulletin in Airbus Service Bulletin A320–52–
Table 1 of the [EASA] AD (missing P/N plate
support) and paragraph (9) was found to be A320–52–1163, dated February 4, 2014, 1165, Revision 01, dated October 23,
incorrectly worded. do not provide any specific method for 2015, excluding Appendix 01, dated
For the reasons described above, this doing a detailed inspection for November 3, 2014, and including
[EASA] AD is revised to introduce the indications of fatigue. Appendix 02, dated October 23, 2015.
necessary corrections. We disagree with the commenter’s We have revised paragraphs (k), (l)(1),
Required actions also include, for Request to replace the term ‘‘fatigue’’ (m), and (n)(3) of this AD to reference
airplanes in Airbus pre-Airbus with ‘‘deformation.’’ The intent of the Airbus Service Bulletin A320–52–1165,
mstockstill on DSK3G9T082PROD with RULES
Modification 27716 and pre-Airbus Airbus service information and the FAA Revision 01, dated October 23, 2015,
Service Bulletin A320–52–1100 AD is to inspect for ‘‘fatigue cracking.’’ excluding Appendix 01, dated
configuration on which certain For clarity, we have revised the November 3, 2014, and including
components have been installed, SUMMARY and Discussion sections of this Appendix 02, dated October 23, 2015, as
repetitive replacements of the fixed final rule, and paragraphs (i), (k), and the appropriate source of service
fairing upper and lower attachment (m) of this AD, by changing ‘‘fatigue’’ to information for the applicable actions in
studs of both the LH and RH MLG. An ‘‘fatigue cracking.’’ those paragraphs.
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![Federal Register / Vol. 81, No. 84 / Monday, May 2, 2016 / Rules and Regulations 26119
person at the Docket Management (f) Compliance (1) Stud—adjustment having P/N
Facility between 9 a.m. and 5 p.m., Comply with this AD within the D5285600720000.
Monday through Friday, except Federal compliance times specified, unless already (2) Rod end assembly (lower) having P/N
holidays. The AD docket contains this done. D5285600400000.
(3) Rod end assembly (upper) having P/N
AD, the regulatory evaluation, any (g) Repetitive Replacements D5285600500000.
comments received, and other For airplanes in pre-Airbus Modification
information. The street address for the 27716 and pre-Airbus Service Bulletin A320– (j) Compliance Times for the Requirements
Docket Operations office (telephone 52–1100 configuration, with any of the of Paragraph (i) of This AD
800–647–5527) is in the ADDRESSES components installed that are identified in For airplanes identified in paragraph (i) of
section. paragraphs (g)(1) through (g)(5) of this AD: At this AD, except as provided by paragraph (o)
the applicable compliance time specified in of this AD: Do the initial inspection required
List of Subjects in 14 CFR Part 39 paragraph (h) of this AD, replace fixed fairing by paragraph (i) of this AD at the latest of the
upper and lower attachment studs of both times specified in paragraphs (j)(1) through
Air transportation, Aircraft, Aviation left-hand (LH) and right-hand (RH) MLG, in (j)(4) of this AD.
safety, Incorporation by reference, accordance with the Accomplishment (1) Before the accumulation of 72 months
Safety. Instructions of Airbus Service Bulletin A320– since the airplane’s first flight.
52–1163, Revision 01, including Appendix (2) Within 72 months since the last
Adoption of the Amendment 01, dated June 22, 2015. Repeat the installation of a post-Airbus Modification
replacements thereafter at intervals not to 27716 assembly or since accomplishment of
Accordingly, under the authority exceed 6,500 flight cycles.
delegated to me by the Administrator, the actions specified in Airbus Service
(1) Plate—support having part number
Bulletin A320–52–1100.
the FAA amends 14 CFR part 39 as (P/N) D5284024820000.
(2) Plate—support P/N D5284024820200. (3) Within 1,500 flight cycles after the
follows: effective date of this AD.
(3) Stud—adjustment having P/N
D5284024420000. (4) Within 8 months after the effective date
PART 39—AIRWORTHINESS of this AD.
DIRECTIVES (4) Rod end assembly (lower) having P/N
D5284000500000. (k) Corrective Action
(5) Rod end assembly (upper) having P/N
■ 1. The authority citation for part 39 D5284000600000. If any discrepancy (including any
continues to read as follows: indication of corrosion, wear, fatigue
(h) Compliance Times for the Requirements cracking, or loose studs) of any MLG forward
Authority: 49 U.S.C. 106(g), 40113, 44701. of Paragraph (g) of This AD stud assembly is found during any inspection
§ 39.13 [Amended] For airplanes identified in paragraph (g) of required by paragraph (i) of this AD, except
this AD, except as provided by paragraph (o) as specified in paragraph (l) of this AD:
■ 2. The FAA amends § 39.13 by adding of this AD: Do the initial replacement Before further flight, replace the discrepant
the following new airworthiness required by paragraph (g) of this AD at the upper and lower fixed fairing forward stud
latest of the times specified in paragraphs assemblies of the LH and RH MLG, in
directive (AD): (h)(1) through (h)(4) of this AD. accordance with the Accomplishment
2016–07–23 Airbus: Amendment 39–18468. (1) Before the accumulation of 6,500 total Instructions of Airbus Service Bulletin A320–
Docket No. FAA–2015–2458; Directorate flight cycles since the airplane’s first flight. 52–1163, Revision 01, including Appendix
Identifier 2014–NM–122–AD. (2) Within 6,500 flight cycles since the last 01, dated June 22, 2015; or Airbus Service
installation of a pre-Airbus Modification Bulletin A320–52–1165, Revision 01, dated
(a) Effective Date 27716 stud on the airplane. October 23, 2015, excluding Appendix 01,
This AD becomes effective June 6, 2016. (3) Within 1,500 flight cycles after the dated November 3, 2014, and including
effective date of this AD. Appendix 02, dated October 23, 2015.
(b) Affected ADs (4) Within 8 months after the effective date
None. of this AD. (l) Corrective Action or Repetitive
Inspections for Certain Corrosion Findings
(c) Applicability (i) Repetitive Inspections
If any corrosion is found during any
This AD applies to the Airbus airplanes For airplanes in post-Airbus Modification inspection required by paragraph (i) of this
identified in paragraphs (c)(1) through (c)(4) 27716 or post-Airbus Service Bulletin A320– AD on any MLG fixed fairing forward stud
of this AD, certificated in any category, all 52–1100 configuration, with any of the
assembly (upper, lower, LH or RH), but the
manufacturer serial numbers. components installed that are identified in
corroded stud is not loose: Do the action
paragraphs (i)(1), (i)(2), and (i)(3) of this AD:
(1) Airbus Model A318–111, –112, –121, specified in paragraph (l)(1) or (l)(2) of this
At the applicable compliance time specified
and –122 airplanes. AD.
in paragraph (j) of this AD, do a detailed
(2) Airbus Model A319–111, –112, –113, (1) Before further flight, replace the
inspection of the LH and RH MLG forward
–114, –115, –131, –132, and –133 airplanes. stud assemblies of the fixed fairing door affected assembly, in accordance with the
(3) Airbus Model A320–211, –212, –214, upper and lower forward attachments of both Accomplishment Instructions of Airbus
–231, –232, and –233 airplanes. LH and RH MLG for indications of corrosion, Service Bulletin A320–52–1163, Revision 01,
(4) Airbus Model A321–111, –112, –131, wear, fatigue cracking, and loose studs, in including Appendix 01, dated June 22, 2015;
–211, –212, –213, –231, and –232 airplanes. accordance with the Accomplishment or Airbus Service Bulletin A320–52–1165,
Instructions of Airbus Service Bulletin A320– Revision 01, dated October 23, 2015,
(d) Subject excluding Appendix 01, dated November 3,
52–1163, Revision 01, including Appendix
Air Transport Association (ATA) of 01, dated June 22, 2015. Repeat the 2014, and including Appendix 02, dated
America Code 52, Doors. inspection thereafter at intervals not to October 23, 2015.
exceed 12 months. Replacement of both LH (2) Within 4 months after finding
(e) Reason corrosion, and thereafter at intervals not to
and RH MLG forward stud assemblies on an
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This AD was prompted by reports of in- airplane, in accordance with the exceed 4 months, do a detailed inspection for
flight loss of fixed and hinged main landing Accomplishment Instructions of Airbus indications of corrosion, wear, fatigue
gear (MLG) fairings, and reports of post- Service Bulletin A320–52–1163, Revision 01, cracking, and loose studs of the forward stud
modification MLG fixed fairing assemblies including Appendix 01, dated June 22, 2015, assembly of the affected (LH or RH) MLG, in
that have wear and corrosion. We are issuing extends the interval for the next detailed accordance with the Accomplishment
this AD to prevent in-flight detachment of an inspection to 72 months; and the inspection Instructions of Airbus Service Bulletin A320–
MLG fixed fairing and consequent damage to must be repeated thereafter at intervals not to 52–1163, Revision 01, including Appendix
the airplane. exceed 12 months. 01, dated June 22, 2015.
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![Federal Register / Vol. 81, No. 84 / Monday, May 2, 2016 / Rules and Regulations 26121
Issued in Renton, Washington, on April 13, this AD as of March 6, 2014 (79 FR for certain Bombardier, Inc. Model CL–
2016. 9389, February 19, 2014). 600–2B16 airplanes. The MCAI states:
Victor Wicklund, ADDRESSES: For service information There have been three in-service reports on
Acting Manager, Transport Airplane identified in this final rule, contact 604 Variant aeroplanes of a fractured fastener
Directorate, Aircraft Certification Service. Bombardier, Inc., 400 Côte-Vertu Road head on the inboard flap hinge-box forward
[FR Doc. 2016–09119 Filed 4–29–16; 8:45 am] West, Dorval, Québec H4S 1Y9, Canada; fitting at Wing Station (WS) 76.50, found
BILLING CODE 4910–13–P telephone 514–855–5000; fax 514–855– during a routine maintenance inspection.
Investigation revealed that the installation of
7401; email thd.crj@aero.
these fasteners on the inboard flap hinge-box
bombardier.com; Internet http:// forward fittings at WS 76.50 and WS 127.25,
DEPARTMENT OF TRANSPORTATION www.bombardier.com. You may view on both wings, does not conform to the
this referenced service information at engineering drawings. Incorrect installation
Federal Aviation Administration the FAA, Transport Airplane may result in premature failure of the
Directorate, 1601 Lind Avenue SW., fasteners attaching the inboard flap hinge-box
14 CFR Part 39 Renton, WA. For information on the forward fitting. Failure of the fasteners could
availability of this material at the FAA, lead to the detachment of the flap hinge box
[Docket No. FAA–2015–3988; Directorate
and consequently the detachment of the flap
Identifier 2015–NM–005–AD; Amendment call 425–227–1221. It is also available
surface. The loss of a flap surface could
39–18491; AD 2016–08–15] on the Internet at http:// adversely affect the continued safe operation
www.regulations.gov by searching for of the aeroplane.
RIN 2120–AA64
and locating Docket No. FAA–2015– The original issue of [Canadian] AD CF–
Airworthiness Directives; Bombardier, 3988. 2013–39 [http://www.regulations.gov/
Inc. Airplanes #!documentDetail;D=FAA-2014-0054-0002]
Examining the AD Docket [which corresponds to FAA AD 2014–03–17,
AGENCY: Federal Aviation You may examine the AD docket on Amendment 39–17754 (79 FR 9389, February
Administration (FAA), Department of the Internet at http:// 19, 2014)] mandated a detailed visual
www.regulations.gov by searching for inspection (DVI) of each inboard flap hinge-
Transportation (DOT).
box forward fitting, on both wings, and
ACTION: Final rule. and locating Docket No. FAA–2015– rectification as required. Incorrectly oriented
3988; or in person at the Docket fasteners require repetitive inspections until
SUMMARY: We are superseding Management Facility between 9 a.m. the terminating action is accomplished.
Airworthiness Directive (AD) 2014–17– and 5 p.m., Monday through Friday, After the issuance of [Canadian] AD CF–
51 for certain Bombardier, Inc. Model except Federal holidays. The AD docket 2013–39, there has been one reported
CL–600–2B16 airplanes. AD 2014–17– contains this AD, the regulatory incident on a 604 Variant aeroplane where
51 required inspecting the inboard flap evaluation, any comments received, and four fasteners were found fractured on the
fasteners of the hinge-box forward other information. The address for the same flap hinge-box forward fitting. The
investigation determined that the fasteners
fitting at Wing Station (WS) 76.50 and Docket Office (telephone 800–647–5527) were incorrectly installed.
WS 127.25 to determine the orientation is Docket Management Facility, U.S. The original issue of this [Canadian] AD
and condition of the fasteners, as Department of Transportation, Docket was issued to reduce the initial and repetitive
applicable, and replacement or Operations, M–30, West Building inspection intervals previously mandated in
repetitive inspections of the fasteners if Ground Floor, Room W12–140, 1200 [Canadian] AD CF–2013–39, and to impose
necessary. AD 2014–17–51 also New Jersey Avenue SE., Washington, replacement of the incorrectly oriented
provided for optional terminating action DC 20590. fasteners within 24 months. The CL–600–
for the requirements of that AD. This 1A11, –2A12 and –2B16 (601–3A/–3R
FOR FURTHER INFORMATION CONTACT: Aziz
new AD requires accomplishment of the Variant) aeroplanes are addressed through
Ahmed, Aerospace Engineer, Propulsion [Canadian] AD CF–2013–39R1.
previously optional terminating action. and Services Branch, ANE–173, FAA, Revision 1 of this [Canadian] AD is issued
This AD was prompted by a New York Aircraft Certification Office to clarify the requirements for the initial and
determination that that additional (ACO), 1600 Stewart Avenue, Suite 410, repetitive inspections.
action is necessary. We are issuing this Westbury, NY 11590; telephone 516–
AD to detect and correct incorrectly You may examine the MCAI in the
228–7329; fax 516–794–5531. AD docket on the Internet at http://
oriented or fractured fasteners, that SUPPLEMENTARY INFORMATION:
could result in premature failure of the www.regulations.gov by searching for
fasteners attaching the inboard flap Discussion and locating Docket No. FAA–2015–
hinge-box forward fitting; failure of the 3988.
We issued a notice of proposed
fasteners could lead to the detachment rulemaking (NPRM) to amend 14 CFR Comments
of the flap hinge box and the flap part 39 to supersede AD 2014–17–51, We gave the public the opportunity to
surface, and consequent loss of control Amendment 39–17999 (79 FR 64088, participate in developing this AD. We
of the airplane. October 28, 2014) (‘‘AD 2014–17–51’’). received no comments on the NPRM or
DATES: This AD is effective June 6, 2016. AD 2014–17–51 applied to certain on the determination of the cost to the
The Director of the Federal Register Bombardier, Inc. Model CL–600–2B16 public.
approved the incorporation by reference airplanes. The NPRM published in the
of certain publications listed in this AD Federal Register on October 19, 2015 Change to Paragraph (k) of This AD
as of June 6, 2016. (80 FR 63141) (‘‘the NPRM’’). Paragraph (k) of the NPRM specified
The Director of the Federal Register Transport Canada Civil Aviation to do the replacement on ‘‘both’’ wings.
mstockstill on DSK3G9T082PROD with RULES
approved the incorporation by reference (TCCA), which is the aviation authority However, the replacement only needs to
of certain other publications listed in for Canada, has issued Canadian be done on the affected wing on which
this AD as of November 12, 2014 (79 FR Airworthiness Directive CF–2014–27R1, incorrectly oriented fasteners were
64088, October 28, 2014). dated August 29, 2014 (referred to after found but none were found to be
The Director of the Federal Register this as the Mandatory Continuing fractured. We have revised paragraph (k)
approved the incorporation by reference Airworthiness Information, or ‘‘the of this AD to specify accomplishing the
of certain other publications listed in MCAI’’), to correct an unsafe condition replacement on the affected wings. We
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Document Created: 2016-04-30 13:35:43
Document Modified: 2016-04-30 13:35:43
| 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 becomes effective June 6, 2016. | |
| Contact | Sanjay Ralhan, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, WA 98057-3356; telephone 425-227-1405; fax 425-227-1149. | |
| FR Citation | 81 FR 26115 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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