# SDR ASAA2020122033722

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2020
- Submitted: December 22, 2020
- Operation: Air carrier
- Aircraft: [N468AS](https://openairdocs.org/aircraft/N468AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41735
- Aircraft time: 24,350 hours, 7,823 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: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020122033722

## Discrepancy

WHILE PERFORMING TASK CARD 78233001 EMERGENCY LIGHT TEST, FOUND BATTERY M1673 FAILED.  GROUNDED-YES.  REMOVED & REPLACED M1673 BATTERY.  OPERATIONS CHECK GOOD, REF B737-900 AMM 35-51-06.

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