EASA SIB NM-11-23: Boeing 767-400ER - Main Landing Gear Truck Beam

What to do

Owners and operators of Boeing 767-400ER airplanes should follow the inspection and maintenance guidelines outlined in Boeing Alert Service Bulletin 767-32A0225 dated January 6, 2011. This includes inspecting the inner diameter of the main landing gear truck beam for corrosion, checking and clearing aft drain passages, and reapplying fillet seal as necessary. No specific compliance deadline is mandated, but timely action is advised.

Summary

The FAA Special Airworthiness Information Bulletin SAIB: NM-11-23 addresses an airworthiness concern involving the main landing gear truck beam on Boeing 767-400ER airplanes. It informs operators about corrosion damage found in the inner bore of the main landing gear truck beam that led to a fracture and partial collapse during taxi. The bulletin provides guidance on inspection and maintenance to prevent similar issues.

What changed

This SAIB introduces awareness of corrosion-related damage in the main landing gear truck beam of Boeing 767-400ER aircraft and recommends inspection and maintenance procedures. It does not mandate regulatory action but advises compliance with Boeing Alert Service Bulletin 767-32A0225 for inspection and corrective measures.

Why it matters

This information is critical for aviation professionals to prevent potential landing gear failures that could compromise aircraft safety during ground operations. Operators and maintenance teams need to monitor corrosion and drainage issues to maintain airworthiness and avoid costly repairs or incidents. Compliance with the recommended inspections helps ensure continued safe operation of affected aircraft.

What to do

Summary

What changed

Why it matters

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