# SDR ASAA2023080644413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2023
- Submitted: August 7, 2023
- Operation: Air carrier
- Aircraft: [N528AS](https://openairdocs.org/aircraft/N528AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35695
- Aircraft time: 44,292 hours, 15,794 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Inoperative
- 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/ASAA2023080644413

## Discrepancy

LEFT SIDE EMERGENCY LIGHT AISLE LT 3 LOCATION, OVERWING ESCAPE GROUND ILLUMINATION LT AND OVERWING ESCAPE LIGHT FOUND INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY EXIT LIGHT BATTERY PACK ASSY (M1670) AT STATION 727C AND OPS CHECK NORMAL REF SSM 33-51-13-107 AND AMM 33-51- 00 NOW ALL LIGHT WORK NORMAL.

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