# SDR 4TXA202111090002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2021
- Submitted: November 16, 2021
- Operation: Air carrier
- Aircraft: N737AT
- Make and model: Boeing 737-7HJ
- Registry model: [Boeing 737-7HJ](https://openairdocs.org/model/boeing-737-7hj) (OpenAirDocs)
- Aircraft serial: 36756
- Aircraft time: 5,062 hours, 2,120 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71701100
- Part serial: 214571
- Condition: Depleted
- Location: Zone 100
- 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/4TXA202111090002

## Discrepancy

EMERGENCY BATTERY PACK DEPLETED.  AIRCRAFT HAD BEEN SITTING FOR SEVERAL MONTHS DURING MAINTENANCE WITH NO POWER APPLIED.

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