# SDR CALA2025090908653

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2025
- Submitted: September 9, 2025
- Operation: Air carrier
- Aircraft: [N35260](https://openairdocs.org/aircraft/N35260), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30855
- Aircraft time: 75,123 hours, 26,259 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Inoperative
- 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/CALA2025090908653

## Discrepancy

FLT DECK DOME LIGHT FAILS TO ILLUMINATE WHEN EMERGENCY EXIT LIGHT SWITCH IN ON POSOTION.  EMERGENCY LIGHTING SYSTEM OPS CHECK.  REPLACED BATTERY PACK M1675 IAW AMM 33-51-06. CHECKS GOOD.

---
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.