What was found
APU CONTROL APUC DETECTED FAILURE OF REDUNDANT CONTROL FUNCTION OR LOSS OF 1 629 CHANNEL. STATUS MSG-4911970 INACTV ER MODE. REPLACED APUC, GROUND CHECK NORMAL.
- Difficulty date
- October 20, 2010
- Submitted
- November 15, 2010
- Operation
- Air carrier
- Aircraft
- N219UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30551
- Aircraft time
- 40,679 hours, 5,017 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Controller
- Part number
- S351W200100
- Part serial
- 16
- Condition
- Faulty
- Location
- Apu
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.