# SDR CALA2023031500740

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 2023
- Submitted: March 15, 2023
- Operation: Air carrier
- Aircraft: [N14731](https://openairdocs.org/aircraft/N14731), registered now
- Make and model: Boeing 737*
- Aircraft serial: 28799
- Aircraft time: 74,478 hours, 26,567 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: Discharged
- Location: M1669
- Stage of operation: IN
- How discovered: O
- Nature of condition: L
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2023031500740

## Discrepancy

EMERGENCY POWER PACK, M1669, FAILS EMERGENCY LIGHTING FUNCTIONAL CHECK, BATTERY DISCHARGES IN LESS THAN 8 MINS. (REF. AAR NR 99962695). REMOVED AND INSTALLED NEW BATTERY PACK M1669 IAW B737 AMM 33-51-06-960-805, TEST OK (WORK ACCOMPLISHED BY V936248 & AAR QCA-74 V918045).

---
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.