FAA has issued an emergency Airworthiness Directive (AD) to owners and operators of Engine Alliance (EA) Model GP7200 series turbofan engines prompted by an uncontained engine failure of Air France flight #AF66 over Atlantic Ocean on 30th September 2017.
The directive highlighted that “The failed engine had 3,527 cycles since new, which is a relatively high cycle engine. The actions specified in this AD are intended to prevent failure of the fan hub”
This AD requires a one-time visual inspection of the GP7200 series engine fan hub, with the compliance time based on the number of accumulated flight cycles, and removal of the fan hub if damage or defects are found that are outside of serviceable limits.
This Emergency AD is effective upon receipt.
Action Requirement (following are just a summary)
(1) Perform a visual inspection of the fan hub,
(2) For fan hubs with 3,500 cycles since new (CSN) or more, inspect within 2 weeks of the effective date of this AD.
(3) For fan hubs with 2,000 CSN or greater and less than 3,500 CSN, inspect within 5 weeks of the effective date of this AD.
(4) For fan hubs with less than 2,000 CSN, inspect within 8 weeks of the effective date of this AD.
(5) If defects or damage to the fan hub are found that are outside of serviceable limits, remove the hub from service and replace with a part that has been inspected and found airworthy in accordance with paragraph (g)(1) of this AD, prior to further flight.