# SDR IPXA3M78561

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 24, 2013
- Submitted: May 29, 2013
- Operation: Air carrier
- Aircraft: N279UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48573
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 6044115
- Part serial: 0097
- Condition: Inoperative
- Location: Emergency Light
- 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/IPXA3M78561

## Discrepancy

DURING EMERGENCY LIGHT TEST, EMERGENCY LIGHT BATTERY ON LOW DISPLAYED.  DEFERRED EMERGENCY LIGHT SYS IAW MEL 33-50-4.  C/W DMP 33-50-4.  PLACARD INSTALLED. ASSIGNED M505057.  REPLACED EMERGENCY LIGHT POWER SUPPLY IAW MM 33-1-01, IPC REF 33-51-10-01-008. SYS TESTS OK.  THIS CLEARS M505057.

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