# SDR DALA1163820643

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2011
- Submitted: November 17, 2011
- Operation: Air carrier
- Aircraft: N643DL
- Make and model: Boeing 757232
- Aircraft serial: 23997
- Aircraft time: 77,280 hours, 34,365 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Discharged
- Location: Cabin
- 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/DALA1163820643

## Discrepancy

DURING LINE CHECK MAINTENANCE FOUND SEVERAL EMERGENCY LIGHTS IN AFT CABIN INOP.  MAINTENANCE REPLACED BATTERIES ON M736 &M737 POWER SUPPLIES.  EMERGENCY LIGHTS NOW CHECK OK PER MM 33-50.

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