What was found
DURING OHAR EMERGENCY LIGHT TEST, LIGHTS DO NOT TURN ON. BATTERY PACK REPLACED IAW TASK 33-51-15-800-801-C5. TEST PERFORMED OK IAW TASK 33-51-15-800-801-C3.
- Difficulty date
- December 13, 2025
- Submitted
- December 16, 2025
- Operation
- Air carrier
- Aircraft
- N78002
- Make and model
- Boeing 777224
- Aircraft serial
- 27578
- Aircraft time
- 122,246 hours, 12,831 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Part number
- ADD71701100
- Condition
- No Test
- Location
- Zone 200
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.