# SDR IPXA2023032192085

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 21, 2023
- Submitted: March 21, 2023
- Operation: Air carrier
- Aircraft: [N257UP](https://openairdocs.org/aircraft/N257UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48451
- Aircraft time: 80,733 hours, 17,822 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Light
- Part number: NA
- Part serial: NA
- Condition: Low
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2023032192085

## Discrepancy

UPON TESTING OF THE EMERGENCY LIGHT SYSTEM DISPLAYS LVL 1 EMER LT BAT 1 LO. DEFERRED EMERGENCY LIGHT SYS IAW MEL 33 50 4. DMP CW PLACARD INSTALLED M 805289 ASSIGNEDREPLACED EMERGENCY LIGHT BATTERY POWER SUPPLY PER AMM 33-51-01, OPERATIONAL TEST GOOD PER TASK 33-51-01-700-802. DMP 33-50-4 REVERSED THIS CLEARS M805289 EFF SOURCE REF: 33-51-10-01

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