# SDR SIMA201109411

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 3, 2011
- Submitted: April 4, 2011
- Operation: Air carrier
- Aircraft: [N542EA](https://openairdocs.org/aircraft/N542EA), registered now
- Make and model: Cndair CL6002C10
- Aircraft serial: 10321
- Aircraft time: 134 hours, 96 cycles
- System (JASC): [2433 · DC Rectifier/Converter](https://openairdocs.org/jasc/2433)
- Part: Tru
- Part number: TRU3502
- Part serial: 3522
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA201109411

## Discrepancy

ON FLIGHT 3712 SMOKE WAS OBSERVED COMING FROM THE NOSE CLAM SHELL DOORS. (WHEN DISCOVERED-UNKNOWN) THE CAPTAIN ELECTED TO RETURN TO ORD.  REMOVED AND REPLACED THE NUMBER 1 TRANSFORMER RECTIFIER UNIT IAW CRJ 700 AMM 24-31-01.  THE OPERATIONAL CHECK WAS GOOD NO SMOKE NOTED P/N OFF TRU3502 S/N OFF 3522 P/N ON TRU 3502 S/NON 1590.  THE AIRCRAFT WAS RETURNED TO SERVICE.

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