Service difficulty report · Current Limiter · Lear 45LEAR

Difficulty date
July 18, 2007
Submitted
August 3, 2007
Operation
General aviation
Make and model
Lear 45LEAR
Aircraft time
2,120 hours
Engine
Garrtt TFE7312
Part
Current Limiter
Part number
EM21542
Condition
Failed
Location
Elevator
Part time
2,312 hours
Stage of operation
IN
How discovered
9
Nature of condition
N
Precautionary procedure
K

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

What was found

(CAN) WHEN COMPLETING POST FLIGHT INSPECTION (DI), AN AMBER CAS MESSAGE, ELEVATOR DISCONNECT WAS NOTICED ON THE EICAS DISPLAY. ELEVATOR DISCONNECT WAS NOT ACTUATED AT THIS TIME (THIS INDICATES THE ELEVATORS ARE DISCONNECTED ON THE GROUND). ELEVATOR DISCONNECT FUNCTION CHECKED AND IT WAS DISCOVERED THAT THE ELEVATORS WOULD NOT DISCONNECT. SYSTEM TROUBLESHOT AND FOUND THAT CURRENT LIMITER HAD FAILED. A NEW LIMITER WAS ORDERED AND INSTALLED. ELEVATOR DISCONNECT SYSTEM FUNCTION CHECKED SERVICEABLE. MFG NOTIFIED OF FAILURE. (TC NR 20070720004)