Service difficulty report · Trim System · Boeing 737322

Difficulty date
November 5, 2007
Submitted
November 8, 2007
Operation
Air carrier
Aircraft
N350UA
Make and model
Boeing 737322
Aircraft serial
24301
Aircraft time
55,128 hours, 30,978 cycles
Engine
Cfmint CFM563C1
Part
Trim System
Condition
Malfunctioned
Stage of operation
CL
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

ELECTRIC TRIM DOES NOT ENGAGE AFTER T/O FROM EITHER YOKE, TAKES SEVERAL TRIES WITH THE SWITCH. ACCOMPLISHED OPS TEST WITH FLAPS UP AND AT 1 UNIT. BOTH SW'S OPS NORMAL. MANUAL OPS WAS SMOOTH. INSPECTED EXTERIOR OF STAB AND STAB JACKSCREW AREA, ALL OK. NO HISTORY AND NO FURTHER OCCURANCES SINCE ORIGINAL.