# SDR ASAA2021123137061

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2021
- Submitted: January 4, 2022
- Operation: Air carrier
- Aircraft: N303AS
- Make and model: Boeing 737990
- Aircraft serial: 30016
- Aircraft time: 68,498 hours, 27,454 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: ADD71701100
- Condition: Discharged
- Location: Main Cabin
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021123137061

## Discrepancy

WHILE ACCOMPLISHING T/C 78233001 ON W/O 1895834 FOUND 5 EACH EMERGENCY LIGHT BATTERY PACKS FAILED, 2 EACH L/H MID CABIN 2 EACH RH MID CABIN AND 1 EACH L1 DOOR. GROUNDED - YES. REMOVED AND REPLACED 5 EACH EMERGENCY LIGHT BATTERY PACKS 2 EACH L/H MID CABIN 2 EACH RH MID CABIN 1 EACH AT L1 DOOR REF B737-900 AMM 33-51-06-960-805 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.