# SDR IPXA2023072793749

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 27, 2023
- Submitted: July 27, 2023
- Operation: Air carrier
- Aircraft: [N293UP](https://openairdocs.org/aircraft/N293UP), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48473
- Aircraft time: 82,881 hours, 15,870 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Part number: UNKNOWN
- Part serial: NA
- Condition: Unknown
- Location: Cabin
- Stage of operation: TX
- 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/IPXA2023072793749

## Discrepancy

DURING COCKPIT PREPARATION "EMERG LT BAT 1 LO" LEVEL 1 ALERT DISPLAYED ON EAD. VERIFIED FAULT AND DEFERRED EMERGENCY LIGHTING SYSTEM PER MEL 33-50-4. DMP C/W, PLACARD INSTALLED AND DI LOG UPDATED AS REQUIRED.REPLACED EMERGENCY PWR SUPPLY BATTERY IAW AMM 33-51-01-01-400-801 AMD AMM 33-51-01-000-802. OPS CK GOOD IAW AMM 33-51-01-700-802. THIS CLEARS DMI M810813. REVERSED DMP 33-50-4, REMOVED PLACARD.

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