# SDR ASAA20181227582

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2018
- Submitted: December 27, 2018
- Operation: Air carrier
- Aircraft: [N512AS](https://openairdocs.org/aircraft/N512AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 39043
- Aircraft time: 39,784 hours, 11,963 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Condition: No Test
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA20181227582

## Discrepancy

L/H ROWS 18-23 BULLNOSE, LH OUTSIDE OVERWING AND LH OUTSIDE OVERWING SLIDE EMERGENCY LIGHTS FAILED CAPACITY CHECK. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M1670 S/N 83621 IAW B737-800 AMM 33-51-06-960-805 STEP 4D(1) - (4).

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