NPRM FAA-2025-5401

Comment period closed

Proposed airworthiness directive · General Atomics AeroTec Systems

Published
January 5, 2026 · 91 FR 205
Comments due
February 19, 2026
Action
Notice of proposed rulemaking (NPRM)
Docket
FAA-2025-5401
Project
MCAI-2025-01313-A
FR document
2025-24233
Products
Aircraft

A proposal is not in force. If adopted, it becomes an AD, usually with changes. Only the Federal Register edition is official.

Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all General Atomics AeroTec Systems GmbH (General Atomics) Model Dornier 228-100, Dornier 228-101, Dornier 228-200, Dornier 228-201, Dornier 228-202, and Dornier 228-212 airplanes. This proposed AD was prompted by reports of specific part-numbered hydraulic pump motors becoming severely damaged by excessive heat. This proposed AD would require replacing the affected hydraulic pump motor with an improved design hydraulic pump motor. This proposed AD would also prohibit installing an affected hydraulic pump motor on any airplane. The FAA is proposing this AD to address the unsafe condition on these products.

Notices in this docket · 1