What was found
CREW REPORTED ON TAXI OUT UPPER RUDDER SHOWED 5 DEGREES LEFT AND LOWER RUDDER WAS CENTERED. AFTER TAXI IN, RUDDER POSITIONS WERE CONFIRMED BY MAINTENANCE. REPLACED YAW DAMPER COMPUTER AS PER MM 22-16-02. OPS CHECK PASSED ON GROUND.
- Difficulty date
- March 31, 2005
- Submitted
- April 19, 2005
- Operation
- Air carrier
- Aircraft
- N509MC
- Make and model
- Boeing 747230B
- Aircraft serial
- 21221
- Aircraft time
- 112,999 hours, 21,484 cycles
- System (JASC)
- 2213 · Flight Controller
- Part
- Yaw Damper
- Part number
- 37572021
- Part serial
- 7911102
- Condition
- Malfunctioned
- Location
- Rudder
- Stage of operation
- TX
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- D
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.