Landing Gear – Tachometer Wiring Harness – Modification
Proposal for consultation. Not binding until EASA issues the final AD; the requirements can still change.
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must modify the routing of the tachometer wiring harnesses in accordance with Airbus Service Bulletin A330-32-3306 within 61 months after the effective date of the airworthiness directive. Stakeholders should monitor the consultation period ending on 5 October 2026 and prepare for compliance once the directive is issued.
Summary
EASA Airworthiness Directive Proposal Document 26-101 is a proposed airworthiness directive applicable to Airbus A330-841 and A330-941 aeroplanes. It addresses a modification related to the landing gear tachometer wiring harness to prevent potential damage and loss of braking function. The directive targets specific manufacturer serial numbers of these aircraft models.
What changed
This new proposed airworthiness directive introduces a required modification to the routing of the 2M tachometer wiring harnesses on affected Airbus A330-841 and A330-941 aeroplanes. The modification aims to eliminate a vulnerability caused by the wiring harnesses being routed alongside the blue hydraulic pipe, which could be damaged by debris following a tire tread separation event.
Why it matters
This proposal is critical for aviation professionals because the identified wiring harness routing vulnerability could lead to simultaneous damage of both tachometer wiring and the hydraulic pipe, resulting in loss of normal and alternate braking functions. Operators and maintenance teams must address this to ensure aircraft safety and prevent potential inability to stop the aeroplane during operations.
More for Airbus A330
All 221- EASA AD 2026-0200Landing Gear – Tachometer Wiring Harness – ModificationOct 20, 2026
- EASA AD 2026-0194Aircraft Flight Manual Supplement – Abnormal Procedures – AmendmentOct 12, 2026
- EASA AD 2026-0189Engine Oil – Oil Pump – Operational ProhibitionOct 1, 2026
- EASA PAD 26-107Flight Controls – Flight Control Primary Computer – ModificationSep 17, 2026
- EASA PAD 26-108Flight Controls – Flight Control Primary Computer – ModificationSep 17, 2026
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