# SDR FDEA202608101106

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2026
- Submitted: August 11, 2026
- Operation: Air carrier
- Aircraft: [N621FE](https://openairdocs.org/aircraft/N621FE), registered now
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48792
- Aircraft time: 75,173 hours, 19,669 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: No Test
- 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/FDEA202608101106

## Discrepancy

ON PREFLIGHT EMERGENCY LIGHT TEST RECEIVED MESSAGE, EMER LT BAT 1 LO.  REPLACED EMERGENCY LIGHT POWER SUPPLY. OPS CHKD NORMAL.

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