# SDR HYIA20150529001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 25, 2015
- Submitted: May 29, 2015
- Operation: Air carrier
- Aircraft: [N409BK](https://openairdocs.org/aircraft/N409BK), registered now
- Make and model: Cessna 402C
- Registry model: [Cessna 402C](https://openairdocs.org/model/cessna-402c) (OpenAirDocs)
- Aircraft serial: 402C0651
- Aircraft time: 23,778 hours, 12,496 cycles
- System (JASC): [3310 · Flight Compartment Lighting](https://openairdocs.org/jasc/3310)
- Part: Transistor
- Part number: 2N3055
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HYIA20150529001

## Discrepancy

PILOT REPORTED SMOKE COMING FROM PANEL LIGHT RESISTOR.  R & R THE DIMMER ASSEMBLY FOR INSTRUMENT LIGHTS.  REPLACED Q7 TRANSISTOR FOR DIMMER SWITCH IAW MM 33-10-105 & WDM 33-10-00.

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