EASA SIB 2024-11: Continuing Airworthiness of Aerazur AIR 12 A (M2) Towing Hook

What to do

Owners and maintenance organizations should inspect the Aerazur AIR 12 A towing hook for smooth operation and absence of damage during periodic maintenance. Hooks showing damage, jamming, sluggishness, or difficulty in operation should be removed from service. Repairs must follow applicable maintenance data and regulatory provisions under Part-M and Part-ML. No specific compliance deadline is stated.

Summary

EASA Safety Information Bulletin 2024-11 is an airworthiness bulletin addressing the continuing airworthiness of the Aerazur AIR 12 A (M2) towing hook, part number 55509-B. This towing hook is installed on various aeroplanes including DAHER AEROSPACE MS 890 and Rallye 235 series, CEAPR HR 100, R 1180 T/TD, and DR 200/300/400 series aircraft. The bulletin provides information on a towing accident caused by a defective towing hook and highlights inspection and maintenance recommendations.

What changed

This new bulletin informs operators and maintenance organizations about a safety concern involving the Aerazur AIR 12 A (M2) towing hook, specifically related to uncommanded release incidents and non-compliance with a previous DGAC airworthiness directive. It introduces recommendations for inspection, removal from service, and repair procedures but does not mandate any regulatory action or airworthiness directive at this time.

Why it matters

The bulletin is important for aviation professionals because it highlights a potential safety risk with a critical towing component that could lead to accidents if not properly maintained. Operators and maintenance teams need to be aware of the inspection criteria and the limitations in obtaining OEM parts due to the manufacturer ceasing operations. This helps ensure continued safe operation of affected aircraft and compliance with maintenance standards.