What was found
EMERGENCY POWER SYS BATTERY WILL NOT TEST ON BOTH UPPER DECK DOORS. REPLACED LT POWER SUPPLY & RT BATTERY IAW AMM 52-23-14. BOTH LIGHTS CHECKED NORMAL.
- Difficulty date
- May 4, 2016
- Submitted
- May 6, 2016
- Operation
- Air carrier
- Aircraft
- N181UA
- Make and model
- Boeing 747422
- Aircraft serial
- 25278
- Aircraft time
- 101,190 hours, 11,951 cycles
- Engine
- Pwa PW4056
- System (JASC)
- 5220 · Emergency Exits
- Part
- Power Supply
- Condition
- Inoperative
- Location
- Door
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.