# SDR IPXA2023072893752

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2023
- Submitted: July 28, 2023
- Operation: Air carrier
- Aircraft: N272UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48571
- Aircraft time: 71,076 hours, 19,422 cycles
- System (JASC): [3300 · Lighting System](https://openairdocs.org/jasc/3300)
- Part: Panel
- Part number: UNKNOWN
- Part serial: NA
- Condition: Fumes
- Location: Cabin
- Stage of operation: DE
- 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/IPXA2023072893752

## Discrepancy

INSPECTION TYPE:NA*** EMERGENCY DECLARED *** ON DESCENT SDF HEARD ELECTRICAL ARC SOUND AND FLASH FROM ELECTRICAL PANEL BEHIND F.O. IMMEDIATELY SMELLED ELECTRICAL FUMES OVERHEAD PANEL LIGHTS WENT OUT.FOUND OVERHEAD/ OBSERVER STATION INSTRUMENT LIGHTING DIMMER SWITCH BURNED UP REMOVED AND REPLACED U1-130 (OVERHEAD INSTRUMENT LIGHTING DIMMER) OPS CHECKS GOOD REF AMM 33-11-03 FIM 33-11-22-00 FIG 116 ESR 33-11-10-01.

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