What was found
EMERGENCY LIGHT BATTERIES FAILED CAPACITY TEST AT LOCATIONS M1669, M1670, M1672 AND M1673 IN THE CABIN. R&R EMERGENCY LIGHT BATTERIES AT LOCATIONS M1669, M1670, M1672 AND M1673 PER MM 33-51-06
- Difficulty date
- March 13, 2020
- Submitted
- March 16, 2020
- Operation
- Air carrier
- Aircraft
- N257WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 32515
- Aircraft time
- 47,303 hours, 28,161 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Condition
- Failed
- Location
- Cabin
- 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.