# SDR A6WA200940157

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 24, 2009
- Submitted: April 14, 2009
- Operation: Air carrier
- Aircraft: [N456ZW](https://openairdocs.org/aircraft/N456ZW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7849
- Aircraft time: 13,312 hours, 12,400 cycles
- System (JASC): [2740 · Stabilizer Control System](https://openairdocs.org/jasc/2740)
- Part: Control Unit
- Part number: 70623
- Part serial: 1023
- Condition: Malfunctioned
- Location: Horizontal Stab
- Part time: 13,058 hours, 12,808 cycles
- 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/A6WA200940157

## Discrepancy

AUTOPILOT PITCH TRIM CAUTION MESSAGE ENROUTE C/W QRH.  REMOVED AND REPLACED HORIZ STAB SYS MCU IAW AMM 27-52-05.  OPS CHECK GOOD.  HSTCU BITE TESTS GOOD AT THIS TIME.  (K)

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