SDR ABXA080109

Service difficulty report · Limit Switch · Doug DC933F

Difficulty date: March 19, 2008
Submitted: March 24, 2008
Operation: Air carrier
Aircraft: N935AX
Make and model: Doug DC933F
Aircraft serial: 47413
Aircraft time: 46,199 hours, 50,613 cycles
System (JASC): 2740 · Stabilizer Control System
Part: Limit Switch
Condition: Faulty
Location: Trim Motor
Stage of operation: IN
How discovered: O
Nature of condition: B
Precautionary procedure: K

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

What was found

OPERATION OF ALTERNATE LONGITUDINAL TRIM SWITCHES CAUSES ONE 5 AMP CIRCUIT BREAKER TO TRIP. ALSO THERE IS A BURNT SMELL PRESENT. VERIFIED BAD ALTERNATE LONGITUDINAL TRIM MOTOR DOWN LIMIT SWITCH. REPLACED LIMIT SWITCH IAW DC9 AMM 27-40-10-2.

More about the Doug DC-9-33F