What was found
'BAT CHARGER APU' EICAS STATUS MESSAGE DISPLAYED. APU BATTERY CHARGER FAILED. REPLACED APU BATTERY AND BATTERY CHARGER.
- Difficulty date
- December 20, 2011
- Submitted
- January 17, 2012
- Operation
- Air carrier
- Aircraft
- N127UA
- Make and model
- Boeing 747422
- Aircraft serial
- 28813
- Aircraft time
- 49,778 hours, 5,884 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Charger
- Part number
- 425402
- Part serial
- 329
- Condition
- Failed
- Location
- Apu Battery
- 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.