SDR 2004UALA00781

Service difficulty report · Elevator · Boeing 737322

Difficulty date: August 21, 2004
Submitted: August 31, 2004
Operation: Air carrier
Aircraft: N352UA
Make and model: Boeing 737322
Aircraft serial: 24320
Aircraft time: 46,854 hours, 25,561 cycles
Engine: Ge CFM56*
System (JASC): 2730 · Elevator Control System
Part: Elevator
Condition: Malfunctioned
Stage of operation: CL
How discovered: O
Nature of condition: F
Precautionary procedure: A

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

What was found

RETURNED TO DEN WITH ELEVATOR PROBLEM. NO FAULT HAS BEEN IDENTIFIED WITHIN THE ELEVATOR SYSTEM. THE FOLLOWING ACTIONS WERE TAKEN IN THE COURSE OF TROUBLESHOOTING:1. PITOT LEAK CHECK OF ELEVATOR FEEL SYSTEM. ACCOMPLISHED WITH NO LEAKS FOUND. 2. HORIZONTAL STAB TRIM RIG CHECKED GOOD USING TREMMLE BAR, 3. STAB TRIM LIMIT SWITCHES CHECKED GOOD. 4. LT ELEVATOR PCU AND BOTH AUTOPILOT SERVOS WERE ADJUSTED. 5. ELEVATOR CABLE TENSION CHECKED.