EASA SIB BEA-2024-07R1
Landing Gear - Shock Absorber Servicing
Summary
BEA 2024-07R1 is a Special Airworthiness Bulletin issued to inform the civil aviation community about best practices for servicing the Main Landing Gear (MLG) shock absorbers on EMBRAER S.A. EMB-545 and EMB-550 aircraft. The bulletin highlights issues related to improper servicing that can affect landing gear operation and aircraft control laws. It provides recommendations to ensure correct servicing procedures are followed to maintain safe aircraft operation.
What Changed
BEA 2024-07R1 introduces revised servicing procedures for the MLG shock absorbers, specifying that servicing must be performed only with the aircraft on jacks according to the Airplane Maintenance Manual (AMM) task 12-14-01-610-802-A. It addresses problems caused by incorrect nitrogen and oil levels in the shock absorbers that can lead to landing gear retraction issues and erroneous Weight on Wheels sensor indications.
Why It Matters
This bulletin is important for aviation professionals because incorrect servicing of the MLG shock absorbers can cause landing gear malfunction, damage to landing gear doors and seals, and unintended changes in aircraft control laws. Operators and maintenance teams must follow the updated procedures to avoid operational disruptions, potential safety risks, and ensure compliance with manufacturer recommendations.
What To Do
Operators and maintenance personnel should perform MLG shock absorber servicing strictly according to the AMM task 12-14-01-610-802-A with the aircraft on jacks. If jacks are not available, they must contact EMBRAER for alternative instructions. There is no mandatory compliance deadline, but adherence to these recommendations is critical to prevent landing gear and control system issues.