What was found
EMERGENCY LIGHT BATTERY L3 MID FAILED OPERATIONS CHECK. REPLACED L3 MID BATTERY PACK, REF AMM 33-51-06. OPERATIONS CHECK GOOD.
- Difficulty date
- December 5, 2020
- Submitted
- December 7, 2020
- Operation
- Air carrier
- Aircraft
- N78001
- Make and model
- Boeing 777224
- Aircraft serial
- 27577
- Aircraft time
- 105,196 hours, 10,610 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- ADD71701100
- Condition
- Discharged
- Location
- Emergency Lights
- Stage of operation
- IN
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.