What was found
( EPSU BATTERY ) MULTIPLE EMERGENCY EXIT SIGNS NOT ILLUMINATE WHEN ON BATTERIES POWER. -R/R FRONT ( 10WL ) AND MID LEFT ( 11WL ) EPSU BATTERIES IAW AMM 33-51-00. ALL OPS CHECKS NORMAL.
- Difficulty date
- September 24, 2025
- Submitted
- September 25, 2025
- Operation
- Air carrier
- Aircraft
- N983NK
- Make and model
- Airbus A320271N
- Aircraft serial
- 11511
- Aircraft time
- 7,488 hours, 3,328 cycles
- System (JASC)
- 3350 · Emergency Lighting
- Part
- Epsu
- Part number
- 321431
- Part serial
- 107845
- Condition
- Inoperative
- Location
- Zone 200
- Part time
- 5,153 hours, 2,284 cycles
- 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.