# SDR DALA1171263741

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 27, 2011
- Submitted: December 28, 2011
- Operation: Air carrier
- Aircraft: [N3741S](https://openairdocs.org/aircraft/N3741S), registered now
- Make and model: Boeing 737832
- Aircraft serial: 30487
- Aircraft time: 34,937 hours, 14,134 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Failed
- Location: Cabin
- 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/DALA1171263741

## Discrepancy

DURING EMERGENCY EGRESS LIGHTING CAPACITANCE CHECK, 5 OF 9  POWER SUPPLIES DID NOT PASS.  REPLACED THE BATTERIES IN POWER SUPPLY #S: M1674, M1671, M1670, M1672, M1673.  CHECKS GOOD.

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