# SDR ASAA2020071092884

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 9, 2020
- Submitted: July 10, 2020
- Operation: Air carrier
- Aircraft: [N524AS](https://openairdocs.org/aircraft/N524AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35195
- Aircraft time: 39,165 hours, 13,650 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: Emergency Lights
- 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/ASAA2020071092884

## Discrepancy

DURING ACCOMPLISHMENT OF T/C 78233008 ALL INSIDE OVERWING EMERGENCY EXIT SIGNS AND LIGHTS ARE INOP. GROUNDED - YES. REPLACED BATTERY PACKS AT M1694 AND M1695 PER B737-800 AMM 33-51-06-960-805. OPS CHECKED PER T/C 78233001 AND 78233008 OPS CHECK GOOD.

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