What was found
APU BATTERY FAILURE. STATUS ACTIVE DESCENT MODE DEPENDENT, APU BATTERY IS WEAK. DB- ELMS P310 ELECTRONICS UNIT MSG-2413047 ACTIVE DC MODE. REPLACED APU BATTERY PER MM, OPS CHECKED GOOD.
- Difficulty date
- July 20, 2012
- Submitted
- July 30, 2012
- Operation
- Air carrier
- Aircraft
- N214UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30220
- Aircraft time
- 43,158 hours, 9,287 cycles
- Engine
- Pwa PW4077
- System (JASC)
- 4900 · Airborne Auxiliary Power Unit (APU) System
- Part
- Battery
- Part number
- 263BA1011
- Part serial
- 136
- Condition
- Weak
- 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.