FAA Cracks Down on Faulty Rolls-Royce Trent Engine Fan Blades
Published Date: 11/21/2025
Rule
Summary
If you fly planes with Rolls-Royce Trent 1000 engines, listen up! The FAA found some fan blades might crack because they were dressed wrong, so they’re making sure these blades get checked and replaced if needed. This rule kicks in December 8, 2025, and could save money by preventing costly engine problems down the road.
Analyzed Economic Effects
5 provisions identified: 1 benefits, 3 costs, 1 mixed.
Mandatory fan-blade inspections starting Dec 8, 2025
If your airplane uses Rolls‑Royce Trent 1000 engines, operators must inspect low-pressure compressor (LPC) fan blades for incorrect dressing in accordance with EASA AD 2025-0143. The FAA requires those inspections to be done within 30 days for most engines and this AD is effective December 8, 2025.
Inspection cost — $765 per engine (FAA estimate)
The FAA estimates the inspection will take 9 work‑hours at $85/hour for a cost of $765 per engine. The FAA estimates this AD affects 34 engines on U.S. registry, for a total estimated inspection cost to U.S. operators of $26,010.
Expensive blade replacement if cracking found
If an LPC fan blade is found cracked, replacement is required. The FAA estimates on‑condition replacement costs of $510 labor plus $310,000 parts, for a total of $310,510 per engine replaced.
Safety: prevents fan-blade failure and debris release
The AD addresses LPC fan blades at risk of cracking due to incorrect dressing to prevent fan blade failure and release of uncontained high-energy debris. Fixing or replacing affected blades reduces the risk of engine in-flight shutdown, airplane damage, and reduced control.
Compliance follows EASA AD 2025-0143
This FAA AD requires compliance with European Union Aviation Safety Agency (EASA) AD 2025-0143, dated July 8, 2025, as incorporated by reference, except for specified exceptions. The FAA did not adopt the manufacturer's reporting-to-manufacturer requirement in the EASA AD.
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