What was found
APU WILL NOT START, 3 ATTEMPTS, FAULT LIGHT CYCLED, NOTHING HAPPENED. REPLACED RELAY K197 AND K117, GROUND CHECKED OK.
- Difficulty date
- March 7, 2012
- Submitted
- April 5, 2012
- Operation
- Air carrier
- Aircraft
- N671UA
- Make and model
- Boeing 767322
- Aircraft serial
- 30026
- Aircraft time
- 45,280 hours, 11,763 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 4940 · APU Start/Ignition System
- Part
- Relay
- Part number
- K197K117
- Part serial
- UNKNOWN
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- TX
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.