FAA Narrows Helicopter Engine Replacement Rules to Save Time and Money
Published Date: 1/20/2026
Proposed Rule
Summary
The FAA wants to update rules for Safran ARRIUS 2F helicopter engines by narrowing down which fuel control units (FCUs) need to be replaced. Some FCUs previously flagged as unsafe are actually fine, so fewer parts will be swapped out. If you own these engines, get ready to replace only the truly risky parts by the deadline, saving time and money while keeping flights safe.
Analyzed Economic Effects
2 provisions identified: 1 benefits, 1 costs, 0 mixed.
Replacement Cost Per Engine Estimated
The FAA estimates replacing an affected FCU will take 1 work-hour (at $85/hour) plus parts costing $20,650, for a total cost of $20,735 per engine. The FAA estimates the proposed AD would affect five U.S.-registered engines, with total estimated cost to U.S. operators of $103,675.
Fewer FCUs Need Replacement
If you operate helicopters with Safran ARRIUS 2F engines, the FAA proposes to narrow which fuel control unit (FCU) serial numbers are subject to mandatory removal and replacement. The proposal keeps the replacement requirement for unsafe parts but reduces the number of affected FCUs, based on a manufacturing-card review (EASA AD 2024-0202R1 dated September 8, 2025).
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