# SDR FDEA202507041112

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 4, 2025
- Submitted: July 7, 2025
- Operation: Air carrier
- Aircraft: [N605FE](https://openairdocs.org/aircraft/N605FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48514
- Aircraft time: 97,785 hours, 23,847 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 6044115
- Part serial: 2018
- Condition: Failed
- Location: Zone 200
- 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/FDEA202507041112

## Discrepancy

EMERGENCY LIGHTING SYSTEM TEST SHOWING "EMERG BAT 1  LO" MSG ,DURING COCKPIT POST FLT CHECK.  RELEASED FOR SERVICE PER MEL 33-50-04.  EMERG BAT 1 LOW MSG DURING TEST.  REPLACED EMERGENCY POWER SUPPLY. OPS CHECKS SATISFACTORY. OK FOR SERVICE.

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