What was found
EMERGENCY LIGHTING BATTERY PACK CAPACITY CHECK FAILED AT LOCATIONS M1672; M1673; M1674; M1675. R&R EMERGENCY LIGHTING BATTERY PACKS AT LOCATIONS M1672; M1673; M1674; M1675 PER AMM 335106
- Difficulty date
- April 22, 2021
- Submitted
- April 26, 2021
- Operation
- Air carrier
- Aircraft
- N448WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 33721
- Aircraft time
- 57,639 hours, 34,109 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery Pack
- Condition
- Failed
- Location
- Emergency Light
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.