EASA AD BR-2022-04-02
Landing Gear - Shear Pin Lockwires - Inspection / Modification
Summary
Brazilian Airworthiness Directive AD No. 2022-04-02 is a regulatory document issued by the Agência Nacional de Aviação Civil (ANAC) that applies to Embraer S.A. ERJ 190-300 aircraft. It addresses inspection and modification requirements for the left hand and right hand main landing gear (MLG) trunnion bearing shear pin lockwires to ensure structural integrity and flight safety.
What Changed
This new directive introduces mandatory inspections and modifications of the MLG trunnion bearing attaching parts to prevent failure of lockwires securing shear pins. It requires detailed inspections within 250 flight hours or 3 months and modifications within 500 flight hours or 6 months, following Embraer Service Bulletin 190E2-57-0001 procedures.
Why It Matters
The directive is critical for aviation professionals because failure of these lockwires can lead to shear pin migration and potential collapse of the main landing gear during takeoff or landing. Compliance ensures continued airworthiness and safety of the affected Embraer ERJ 190-300 fleet, impacting operators, maintenance organizations, and regulatory compliance teams.
What To Do
Operators must perform a detailed inspection of the LH and RH MLG trunnion bearing lockwires within 250 flight hours or 3 months from May 3, 2022, and replace any damaged lockwires before the next flight. Additionally, a modification of the MLG trunnion bearing attaching parts must be completed within 500 flight hours or 6 months from the effective date, following Embraer Service Bulletin 190E2-57-0001 instructions.
Your fleet's weekly compliance brief
AI-summarized regulatory changes, compliance deadlines, and action items — filtered to your aircraft, every Monday.
AI-generated summary from official EASA source document. Always verify against the original.