What was found
DURING ROUTINE MAINTENANCE THE LT UPPER DECK DOOR ESCAPE LIGHT BATTERY FAILED OPERATIONAL CHECK. REPLACED LT UPPER DECK ESCAPE LIGHT BATTERY PACK IAW AMM 33-51-04. OPERATIONS CHECKED GOOD.
- Difficulty date
- December 22, 2013
- Submitted
- December 23, 2013
- Operation
- Air carrier
- Aircraft
- N263SG
- Make and model
- Boeing 747481
- Aircraft serial
- 29263
- Aircraft time
- 43,435 hours, 5,611 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- 900835AB
- Part serial
- 105170
- Condition
- Failed
- Location
- Cabin
- Part time
- 841 hours, 65 cycles
- 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.