# SDR SWIA200413782

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2004
- Submitted: September 10, 2004
- Operation: Air carrier
- Aircraft: [N978SW](https://openairdocs.org/aircraft/N978SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7953
- Aircraft time: 435 hours, 371 cycles
- System (JASC): [2741 · Stabilizer Position Indicating](https://openairdocs.org/jasc/2741)
- Part: Control Unit
- Part number: 70609
- Part serial: 1495
- Condition: Malfunctioned
- Location: Horiz Stab Trim
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200413782

## Discrepancy

MACH TRIM WILL NOT ENGAGE.  REPLACED HORIZONTAL STAB TRIM CONTROL UNIT IAW CRJ MM 27-41-01, OPERATIONAL CHECK GOOD.

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