Durbal Metallwarenfabrik and Maedler Push Rod Ends Production Deficiency
- Published
- Replaces
- 2022-10
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators are recommended to consult the Type Certificate Holder for guidance if replacement of these push rod end bearings is necessary during maintenance. Manufacturers are advised to replace affected parts with alternatives having different part numbers eligible for installation. There are no mandatory compliance deadlines specified in this bulletin.
Summary
EASA Safety Information Bulletin 2022-10R1 is an airworthiness bulletin addressing a production deficiency in push rod end bearings manufactured by Durbal Metallwarenfabrik and Maedler. These parts, identified by Maedler P/N 63250600 and Durbal P/N BRM 06-00-501, are used in control systems of sailplanes, small aeroplanes, and light rotorcraft, including Aerospool WT-9 Dynamic, Lange Aviation Antares E1, and Alexander Schleicher AS 33. The bulletin highlights issues related to hydrogen embrittlement found in certain batches delivered in 2022.
What changed
This revision of EASA SIB 2022-10 dated 06 December 2022 specifies the affected batches of push rod end bearings potentially impacted by the manufacturing deficiency. It updates the information to raise awareness about the safety concern without mandating any regulatory action such as an Airworthiness Directive.
Why it matters
The bulletin informs aviation professionals about the risk of push rod end failures due to hydrogen embrittlement, which can affect flight safety by compromising control system integrity. Operators and maintenance organizations need to be aware of the affected parts to ensure proper inspection and replacement decisions, thereby maintaining aircraft airworthiness and safety.
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