# SDR CALA2025021002260

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2025
- Submitted: February 10, 2025
- Operation: Air carrier
- Aircraft: [N19130](https://openairdocs.org/aircraft/N19130), registered now
- Make and model: Boeing 757224
- Aircraft serial: 28970
- Aircraft time: 98,791 hours, 21,822 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: AD20131A
- Condition: Failed
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025021002260

## Discrepancy

EMERGENCY EXIT LIGHTING ABOVE DOOR 1-L AND LEFT SIDE OF FIRST CLASS STAY ON WITH POWER OFF & ALL EMERGENCY LIGHT SWITCHES OFF. REPLACED POWER SUPPLY AND BATTERY PACK REFERANCE MM 33-51-07-022-020 AND 33-51-07-902-001 OPS CHECKED NORMAL.PARTS USED:  19-3351-3-0097,QTY :1  75-3351-3-0041,QTY :1

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.