# SDR RYNA2011073100017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 31, 2011
- Submitted: August 3, 2011
- Operation: Air carrier
- Aircraft: N763BK
- Make and model: Boeing 767-3Z9
- Registry model: [Boeing 767-3Z9](https://openairdocs.org/model/boeing-767-3z9) (OpenAirDocs)
- Aircraft serial: 23765
- Aircraft time: 85,843 hours, 17,473 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: BPS73
- Part serial: 6393
- Condition: Inoperative
- Location: Cabin
- Part time: 85,843 hours, 17,473 cycles
- 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/RYNA2011073100017

## Discrepancy

EXTERIOR EMERGENCY LIGHTS INOPERATIVE, LEFT AND RIGHT SIDES.  REMOVED AND REPLACED BATTERY POWER SUPPLY, POS M00731 AND M00735 REF AMM 33-51-07.  SYSTEM OPERATIONAL CHECKED NORMAL.

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