# SDR SPAA1000004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2010
- Submitted: February 1, 2010
- Operation: Air carrier
- Aircraft: N712S
- Make and model: Boeing 737-2Y5
- Registry model: [Boeing 737-2Y5](https://openairdocs.org/model/boeing-737-2y5) (OpenAirDocs)
- Aircraft serial: 23038
- Aircraft time: 66,473 hours, 34,582 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 6013211
- Part serial: 8163
- Condition: Inoperative
- 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/SPAA1000004

## Discrepancy

MAIN ACFT BATTERY HAS LOW VOLTAGE.  FOUND EMERGENCY LIGHT POWER SUPPLY DEFECTIVE.  REPLACED POWER SUPPLY IN FWD CARGO HOLD AND FUNCTIONALLY TESTED SATISFACTORY IAW MM 33-51-02.

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