# SDR REXA2012071201068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 12, 2012
- Submitted: July 13, 2012
- Operation: Air carrier
- Aircraft: [N8631E](https://openairdocs.org/aircraft/N8631E), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7631
- Aircraft time: 22,525 hours, 20,155 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Trim System
- Condition: Malfunctioned
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/REXA2012071201068

## Discrepancy

STAB TRIM & MACH TRIM DISCONNECTS ON APPROACH, ONLY WHEN FLAPS LOWERED AND CAPTAIN TRIM CONTROL SWITCH USED.  COULD NOT DUPLICATE ON GROUND.   PERFORMED CONTINUITY, RESISTANCE CHECKS IAW ESPM 20-12-0 AND WM 27-41-00.  NO DEFECTS NOTED.  REMOVED AND REPLACED MCU IAW AMM 27-42-05.  OPS CHECKED GOOD.

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