What was found
LEFT YAW DAMPER INOPERATIVE. REPLACED CSEU PWR SUPPLY MODULE M536 DUE TO "NO 26 VAC" FAULT ON YAW DAMP MODULE-L. YAW DAMP, RUDDER RATIO, POWER SUPPLY AND MCDP CURRENT FAULTS TEST 30 ALL PASS.
- Difficulty date
- August 22, 2012
- Submitted
- September 8, 2012
- Operation
- Air carrier
- Aircraft
- N598UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28751
- Aircraft time
- 53,340 hours, 14,953 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 2210 · Autopilot System
- Part
- Module
- Part number
- 285T0017201
- Part serial
- D08190
- Condition
- Inoperative
- Location
- Yaw Damper
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.