EASA AD 2020-0028
Exhaust — Thrust Reverser Hinge Nut — Inspection / Replacement
Summary
EASA Airworthiness Directive 2020-0028 is an airworthiness directive addressing Airbus A350-941 and A350-1041 aeroplanes. It mandates inspection and replacement of thrust reverser hinge nuts on both engines to ensure continued airworthiness and safety. The directive references Airbus Service Bulletin A350-78-P013 and Goodrich Service Bulletin RA35078-059 for detailed instructions.
What Changed
This new airworthiness directive introduces a one-time inspection and, if necessary, replacement of thrust reverser hinge nuts installed at hinge positions 2, 3, and 4 on both engines of Airbus A350-941 and A350-1041 aircraft. It requires installation of new nuts with compliant locking features and application of torque stripes to prevent in-flight loss of thrust reversers.
Why It Matters
This directive is critical for aviation professionals because failure to detect and correct the affected hinge nuts could lead to in-flight loss of a thrust reverser, potentially causing damage to the aircraft or injury to people on the ground. Operators and maintenance organizations must comply to maintain aircraft safety and regulatory compliance.
What To Do
Operators of Airbus A350-941 and A350-1041 aircraft must perform a one-time inspection of the thrust reverser hinge nuts and replace any non-compliant nuts within 7 calendar months from 2020-02-29. The replacement must follow the instructions in Airbus SB A350-78-P013 and include applying torque stripes at each hinge nut location.
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