Service difficulty report · Trim System · Boeing 73781Q

Difficulty date
March 12, 2020
Submitted
June 3, 2020
Operation
Air carrier
Aircraft
N520AM
Make and model
Boeing 73781Q
Aircraft serial
29052
Aircraft time
64,749 hours, 23,628 cycles
Part
Trim System
Condition
Out Of Adjust
Location
Horiz Stab
Stage of operation
IN
How discovered
O
Nature of condition
F
Precautionary procedure
K

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

What was found

DURING TRANSIT CHECK, IT WAS DETECTED THAT THE HORIZONTAL STABILIZER TRIM MOVEMENT WAS OUT OF RANGE. MAINTENANCE PERSONNEL PERFORMED REVISION TO STABILIZER DETENTS ON 4.5 UNITS TO NOSE DOWN WITH FLAPS RETRACTED. THE STABILIZER TRIM LIMIT SWITCHES TEST WAS PERFORMED IAW AMM TASK 27-41-94-700-801, ALL CORRECT.

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