FAA Targets Overheating Pumps in Dornier 228 Airplanes
Published Date: 1/5/2026
Proposed Rule
Summary
The FAA wants all owners of General Atomics Dornier 228 airplanes to swap out certain hydraulic pump motors that can overheat and get damaged. They’re proposing a safer, improved motor and banning the old ones from being installed again. Comments on this plan are open until February 19, 2026, so owners should get ready to act soon and keep their planes safe.
Analyzed Economic Effects
2 provisions identified: 0 benefits, 2 costs, 0 mixed.
Mandatory pump-motor swap and ban
If you own or operate a General Atomics Dornier 228 (models Dornier 228-100, -101, -200, -201, -202, or -212), you must replace any hydraulic pump motor with part number (P/N) 1259A with the improved motor P/N A-752511A00B. Do the replacement within 200 hours time-in-service of the hydraulic pump motor (if the airplane has a hydraulic system elapsed time indicator) or within 600 landings (if it does not). Also, as of the effective date of the AD, you may not install a hydraulic pump motor having P/N 1259A on any airplane.
Estimated compliance cost to operators
The FAA estimates this AD affects 16 U.S.-registered Dornier 228 airplanes. Estimated labor is 3 work-hours at $85 per hour ($255), parts $8,900, for a total cost per airplane of $9,155 and an estimated total cost to U.S. operators of $146,480.
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