# SDR ASAA2023070643916

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2023
- Submitted: July 11, 2023
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 44,085 hours, 15,713 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71702001
- Condition: Inoperative
- Location: Main Passenger C
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2023070643916

## Discrepancy

ALL EMERGENCY LIGHTS ASSOCIATED WITH BATTERY PACK M1672 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M1672 IAW B737-800 AMM 33-51-06-960-806.OPS CHECK 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.