What was found
YAW DAMPER REPORTED WILL NOT STAY ENGAGED. SHOWS FAULT HISTORY MESSAGE 22-21003. REPLACED RUDDER POWER CONTROL UNIT PER MM 27-21-91 AND PERFORMED ADJUSTMENT AND TEST PER MM 27-21-91. YAW DAMPER CHECKS NORMAL PER MM 22-12.
- Difficulty date
- July 25, 2003
- Submitted
- July 28, 2003
- Operation
- Air carrier
- Aircraft
- N234TR
- Make and model
- Boeing 737228
- Aircraft serial
- 23004
- Aircraft time
- 43,184 hours, 33,427 cycles
- System (JASC)
- 2720 · Rudder Control System
- Part
- Pcu
- Part number
- 65C370539
- Part serial
- 2664AC
- Condition
- Malfunctioned
- Location
- Rudder
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.