# SDR IPXA2018111986080

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2018
- Submitted: November 19, 2018
- Operation: Air carrier
- Aircraft: N271UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48572
- Aircraft time: 62,484 hours, 17,186 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2018111986080

## Discrepancy

EMERGENCY LIGHTS INOPERATIVE.  REPLACED THE POWER SUPPLY IAW MM 33-51-01-501,  TEST FAILED.  EMERGENCY LIGHTS WOULD NOT TURN OFF.   INSTALLED THE ORIGINAL POWER SUPPLY.

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