# SDR DALA1217145507

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2012
- Submitted: March 20, 2012
- Operation: Air carrier
- Aircraft: N507US
- Make and model: Boeing 757251
- Aircraft serial: 23196
- Aircraft time: 5,029 hours, 2,836 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/DALA1217145507

## Discrepancy

DURING LINE CHECK MAINTENANCE FOUND 3 FIRST CLASS EMERGENCY OVERHEAD INOP.  MAINTENANCE REPLACED EMERGENCY BATTERY PACK IN FORWARD POWER SUPPLY.  OPERATION OF LIGHT NOW CHECKS GOOD PER AMM 33-51.

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