Airworthiness Directive for Learjet 60

Install a Thrust Reverser (T/R) Voice Command Warning System (VCWS)
to alert operators of a thrust reverser malfunction.

Effective 6/25/2020

 
 

Effectivity

Learjet 60-002 thru 60-430.

Reason

This AD was prompted by a report of a high-speed rejected takeoff involving a Learjet Model 60 airplane that occurred and a reverse thrust command accelerating the airplane instead of decelerating the airplane. The acceleration with reverse thrust commanded occurred when the thrust reverser doors were in the stowed position instead of the deployed position.

This AD requires installing a thrust reverser (T/R) Voice Command Warning System (VCWS) to alert the crew of a T/R malfunction.


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Bombardier Learjet Inc. recommends compliance with this modification at the next 1200 hour inspection or 48 months after June 25, 2020 (the effective date of this AD), whichever occurs first.

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