Federal Register #FAA20263873

FAA Airworthiness Directives for Airbus, MHI RJ, and Airbus Canada Aircraft – Maintenance, Manual, and Software Updates

The Federal Aviation Administration (FAA) has issued multiple airworthiness directives (ADs) impacting several aircraft models and OEMs: - Government Buyer: - Federal Aviation Administration (FAA) - OEMs Involved: - Airbus SAS - MHI RJ Aviation ULC - Airbus Canada Limited Partnership - Pratt & Whitney (for engine control software) - Products/Services Requested: - Revision of maintenance or inspection programs to incorporate new and revised Airworthiness Limitations Items (ALI) tasks for MHI RJ Aviation ULC regional jets (CL6002C10, CL6002C11, CL6002D15, CL6002D24) - Reference: Transport Canada AD CF202526 - Revision of Airplane Flight Manual Supplement (AFMS) for Airbus SAS A330-200 and A330-300 series (modified by STC ST04038NY) - Limits ETOPS-180 operations to three flightcrew members - Corrects minimum oxygen dispatch pressure information - Reference: EASA AD 20250047 - Applies to 11 aircraft - Installation of Pratt & Whitney Electronic Engine Control (EEC) software version 2.12.1 (part number 532415815) or later for Airbus Canada Limited Partnership BD500-1A10 and BD500-1A11 - Addresses engine bleed duct large leak condition - Notable Requirements: - All actions are regulatory safety mandates, not procurement purchases - Compliance with referenced international airworthiness directives (Transport Canada, EASA) - Specific software installation required as a terminating action for certain Airbus Canada aircraft - No direct purchase of hardware or services; actions involve compliance updates and software installation

Description

The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A330-200 and A330-300 series airplanes modified by a certain supplemental type certificate (STC). This AD was prompted by a finding that, for airplanes with a flightcrew oxygen system supplied by a single oxygen cylinder, the oxygen supply would not be sufficient under all circumstances for extended operations (ETOPS) with a maximum diversion time of 180 minutes (ETOPS-180) with four flightcrew members. This AD requires revising the existing Airplane Flight Manual Supplement (AFM-S) to limit ETOPS-180 operations to three flightcrew members, as applicable, and correct minimum oxygen dispatch pressure information. The FAA is issuing this AD to address the unsafe condition on these products.

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