Service difficulty report · Switch · Lear 45LEAR

Difficulty date
January 11, 2023
Submitted
January 26, 2023
Operation
Air carrier
Aircraft
N15CF
Make and model
Lear 45LEAR
Aircraft serial
45376
Aircraft time
4,073 hours, 2,991 cycles
Part
Switch
Part number
444EN2R
Condition
Intermittent
Location
Thrust Reverser
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
H, A

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THE FLIGHT CREW REPORTED THE LEFT AND RIGHT REVERSER FAULT WHITE CAS MESSAGE ILLUMINATED AFTER TAKEOFF. THE LEFT ENGINE AMBER REV MESSAGE ILLUMINATED DURING POWER REDUCTION. THE CREW RAN THE CHECKLIST AND LEFT REVERSER DEPLOY CIRCUIT BREAKER WAS PULLED ACCORDING TO THE CHECKLIST. THE FAULT WAS DEFERRED BY MEL 78-30-01-02 AND OPERATIONS WERE CONTINUED. THE MAINTENANCE PROVIDER REMOVED THE NR 1 INTERMITTENT SQUAT SWITCH AND REPLACED IT WITH A NEW SWITCH. THE SWITCH WAS RIGGED OPERATIONS WERE VERIFIED AND THE AIRCRAFT WAS RETURNED TO SERVICE.