What was found
AIRCRAFT NOT GROUNDED - EMERGENCY LIGHTING SYSTEM OPERATIONAL TEST FAILED PER AMM TASK 33-51-00-710-001 (JOB CARD 26L00025010, STEP 8.B.). REMOVED AND REPLACED EPSU BATTERY AS NEEDED PER AMM 33-51-38, OPERATIONAL CHECK GOOD.
- Difficulty date
- September 6, 2020
- Submitted
- September 9, 2020
- Operation
- Air carrier
- Aircraft
- N524UW
- Make and model
- Airbus A321231
- Aircraft serial
- 3977
- Aircraft time
- 39,480 hours, 14,284 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Battery
- Part number
- 321431
- Condition
- No Test
- Location
- Emergency Lights
- 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.