# SDR CA150212009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2015
- Submitted: March 12, 2015
- Operation: General aviation
- Make and model: Doug DC-10-30F
- Registry model: [Doug DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f) (OpenAirDocs)
- Aircraft time: 114,261 hours
- Engine: Ge CF650C2
- System (JASC): [3110 · Instrument Panel](https://openairdocs.org/jasc/3110)
- Part: Dimmer
- Part number: 2631
- Condition: Failed
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA150212009

## Discrepancy

(CAN) IN FLIGHT, THE FLIGHT CREW NOTICED SMOKE EMITTING FROM THE COCKPIT OVERHEAD PANEL. THE ELECTRICAL SMOKE PROCEDURE CHECKLIST WAS CARRIED OUT AND THE SMOKE CEASED. THE CREW COMPLETED A FUEL DUMP BEFORE RETURNING TO BASE FOR AN UNEVENTFUL LANDING. MAINTENANCE FOUND A BURNT RING TERMINAL CONNECTOR ON A LAMP DIMMER MODULE IN THE OVERHEAD PANEL. THE TERMINAL CONNECTOR, DIMMER MODULE AND ASSOCIATED CIRCUIT BREAKERS WERE REPLACED, AND THE AIRCRAFT WAS RETURNED TO SERVICE. ALL SUBSEQUENT OPERATIONS WERE NORMAL .

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