# SDR CALA2021120102221

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 1, 2021
- Submitted: December 1, 2021
- Operation: Air carrier
- Aircraft: [N31412](https://openairdocs.org/aircraft/N31412), registered now
- Make and model: Boeing 737900
- Aircraft serial: 30129
- Aircraft time: 55,146 hours, 22,332 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: NA
- Condition: Inoperative
- Location: Fwd Lh
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2021120102221

## Discrepancy

EMERGENCY LIGHT BATTERY PACK INOP LOCATED ON LEFT OF  FWD ENTRY LIGHT PANEL REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK LOCATED ON LEFT OF  FWD ENTRY LIGHT PANEL REF 737-900 AMM 33-51-06 REV 75 OPPS CKECK 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.