EASA AD US-2022-06-10
Exhaust - Thrust Reverser Inner Wall Debris Shields - Installation // Powerplant - Fan Cowl Doors / Hydraulic Pump Shutoff Valves - Inspection / Functional Check
Federal Aviation Administration Airworthiness Directive 2022-06-10 is a final rule addressing certain Boeing 777-200 and 777-300 series airplanes equipped with Pratt & Whitney engines. It mandates the installation of debris shields on the thrust reverser inner wall, inspection of fan cowl doors for moisture ingress, and repetitive functional checks of hydraulic pump shutoff valves to prevent unsafe conditions related to in-flight fan blade failures. This directive aims to mitigate risks of engine shutdown, uncontrolled fires, and structural damage.