# SDR UIEA2016062000439

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 18, 2016
- Submitted: June 20, 2016
- Operation: Air carrier
- Aircraft: [N496MC](https://openairdocs.org/aircraft/N496MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29257
- Aircraft time: 68,862 hours, 11,173 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: BPS73
- Part serial: 46840
- 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/UIEA2016062000439

## Discrepancy

FOUND EMERGENCY LIGHTS DID NOT STAY ON FOR 15 MINUTES, X325, X326, M4914, L1382, L5730, L5731, L5732, L5734 IAW AMM 33-51-04-002-009-001 AND 33-51-04-402-012-001, REV 86.  REPLACED POWER SUPPLY IAW AMM 33-51-04-402-012-001, REV 86 PERFORMED INSTALLATION TEST OF POWER SUPPLY AND THE RESULT WAS SATISFACTORY.

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