Main Landing Gear Side Stay Upper Spindle Assembly - Inspection / Replacement
- Published
- Effective
- Deadline
- Replaces
- 2023-02-02
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must perform a general visual inspection within 75 flight hours, 50 flight cycles, or 14 days after March 1, 2023, whichever occurs first, and replace any missing parts immediately before the next flight. Following this, a detailed clearance inspection must be conducted within specified intervals, with corrective actions taken based on clearance measurements. Compliance must be recorded in maintenance logs and can credit prior actions done per earlier service bulletins.
Summary
Brazilian Airworthiness Directive AD No. 2023-02-02R1 is an updated regulatory document issued by ANAC that applies to Embraer S.A. ERJ 190-300 and ERJ 190-400 aircraft. It mandates inspection and possible replacement of the main landing gear side stay upper spindle assembly attachments to ensure proper locking and structural integrity during takeoff and landing.
What changed
This directive supersedes AD No. 2023-02-02 and revises the inspection criteria in the compliance paragraph. The update modifies the timing and procedures for inspecting the bolts, washers, locknuts, and cotter pins of the main landing gear side stay upper spindle assembly, including detailed clearance measurements and replacement thresholds.
Why it matters
The directive addresses a critical safety concern involving missing parts in the main landing gear side stay upper spindle assembly that could lead to landing gear collapse without warning. Compliance is essential for operators and maintenance organizations to prevent potential accidents and ensure continued airworthiness of affected Embraer ERJ 190 aircraft.
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