2023-25-05: Landing Gear, Electrical System Installation

1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive (AD) 2022-07-15, Amendment 39-22003 (87 FR 22438, April 15, 2022); and b. Adding the following new AD: 2023-25-05 Airbus SAS: Amendment 39-22632; Docket No. FAA-2023-1882; Project Identifier MCAI-2023-00651-T. (a) Effective Date This airworthiness directive (AD) is effective February 7, 2024. (b) Affected ADs This AD replaces AD 2022-07-15, Amendment 39-22003 (87 FR 22438, April 15, 2022) (AD 2022-07-15). (c) Applicability This AD applies to the Airbus SAS airplanes, certificated in any category, identified in paragraphs (c)(1) through (3) of this AD. (1) All Model A319-151N, A319-153N, and A319-171N airplanes. (2) All Model A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, and A320-273N airplanes. (3) All Model A321-251N, A321-251NX, A321-252N, A321-252NX, A321-253N, A321-253NX, A321-271N, A321-271NX, A321-272N, and A321-272NX airplanes. (d) Subject Air Transport Association (ATA) of America Code 32, Landing Gear; and America Code 92, Electrical System Installation. (e) Unsafe Condition This AD was prompted by the detection of several channel failures on the braking and steering control unit (BSCU), inducing, in case of dual channel failures, loss of anti-skid function together with the reversion to the alternate braking mode, and loss of nose wheel steering. This AD was further prompted by the determination that a type 1 relay combined with an affected BSCU could induce BSCU freezing. The FAA is issuing this AD to address these conditions, which could lead to loss of braking performance with significant increase in airplane stopping distance, possibly resulting in a runway excursion. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2023-0093R1, dated May 15, 2023 (EASA AD 2023-0093R1). (h) Exceptions to EASA AD 2023-0093R1 (1) Where EASA AD 2023-0093R1 refers to "10 March 2022 [the effective date of EASA AD 2022-0032 at original issue]," this AD requires using May 2, 2022 (the effective date of AD 2022-07-15). (2) Where EASA AD 2023-0093R1 refers to its effective date, this AD requires using the effective date of this AD. (3) Where EASA AD 2023-0093R1 defines "the AOT 1" as "Airbus Alert Operators Transmission (AOT 1) A32N025-22," this AD requires using Airbus Alert Operators Transmission A32N025-22, Rev 00, dated February 24, 2022, including Appendixes 1 through 4, dated February 21, 2022, or Airbus Alert Operators Transmission A32N025-22, Rev 01, dated May 10, 2023, including Appendixes 1 through 3, dated May 2023. (4) Where paragraphs (2) and (3) of EASA AD 2023-0093R1 specify "in accordance with the instructions of the AOT 1," replace those words with "in accordance with the 'Remove and replace BSCU P/N E21327307' step in paragraph 5.6., 'Instructions,' of Airbus Alert Operators Transmission A32N025-22, Rev 00, dated February 24, 2022, including Appendixes 1 through 4, dated February 21, 2022, or of Airbus Alert Operators Transmission A32N025-22, Rev 01, dated May 10, 2023, including Appendixes 1 through 3, dated May 2023." No other actions in Airbus Alert Operators Transmission A32N030-23, Rev 00, dated February 27, 2023, including Appendixes 1 and 2, dated February 21, 2023 (referenced in EASA AD 2023-0093R1 and not incorporated by reference in this AD), or Airbus Alert Operators Transmission A32N025-22, Rev 01, dated May 10, 2023, including Appendixes 1 through 3, dated May 2023, are required for compliance for the replacement. (5) Where paragraph (4) of EASA AD 2023-0093R1 requires operators to "implement the instructions of the MMEL [master minimum equipment list] update," this AD requires replacing those words with "implement the operator's existing FAA-approved minimum equipment list (MEL) with the provisions specified in 'The MMEL update' as identified in EASA AD 2023-0093R1." (6) Where paragraph (4) of EASA AD 2023-0093R1 specifies to "inform all flight crews, and, thereafter, operate the airplane accordingly," this AD does not require those actions as those actions are already required by existing FAA operating regulations. (7) This AD does not adopt the "Remarks" section of EASA AD 2023-0093R1. (i) No Reporting Requirement Although certain service information specified in EASA AD 2023-0093R1 specifies to report certain information and send affected parts to the manufacturer, this AD does not require those actions. (j) Additional AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Validation Branch 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 responsible Flight Standards Office, as appropriate. If sending information directly to the International Validation Branch, send it to the attention of the person identified in paragraph (k) of this AD. Information may be emailed to [email protected]. (i) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (ii) AMOCs approved previously for AD 2022-07-15 are approved as AMOCs for the corresponding provisions of EASA AD 2023-0093R1 that are required by paragraph (g) of this AD. (2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, International Validation Branch, FAA; or EASA; or Airbus SAS'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 required by paragraph (j)(2) of this AD, if any service information contains paragraphs that are labeled as RC, the instructions in RC paragraphs, including subparagraphs under an RC paragraph, must be done to comply with this AD; any paragraphs, including subparagraphs under those paragraphs, that are not identified as RC are recommended. The instructions in paragraphs, including subparagraphs under those paragraphs, 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 instructions identified as RC can be done and the airplane can be put back in an airworthy condition. Any substitutions or changes to instructions identified as RC require approval of an AMOC. (k) Additional Information For more information about this AD, contact Timothy Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 206-231-3667; email [email protected]. (l) 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. (3) The following service information was approved for IBR on February 7, 2024. (i) Airbus Alert Operators Transmission A32N025-22, Rev 01, dated May 10, 2023, including Appendixes 1 through 3, dated May 2023. (ii) European Union Aviation Safety Agency (EASA) AD 2023-0093R1, dated May 15, 2023. (4) The following service information was approved for IBR on May 2, 2022 (87 FR 22438, April 15, 2022). (i) Airbus Alert Operators Transmission A32N025-22, Rev 00, dated February 24, 2022, including Appendixes 1 through 4, dated February 21, 2022. (ii) [Reserved] (5) For EASA AD 2023-0093R1, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email [email protected]; website easa.europa.eu. You may find this EASA AD on the EASA website at ad.easa.europa.eu. (6) For Airbus service information identified in this AD, contact Airbus SAS, Airworthiness Office-EIAS, Rond-Point Emile Dewoitine No: 2, 31700 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email [email protected]; website airbus.com. (7) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. (8) You may view this material at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations or email [email protected] . Issued on December 14, 2023. Victor Wicklund, Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-28851 Filed 1-2-24; 8:45 am]BILLING CODE 4910-13-P