# SDR A6WA200440167

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 25, 2004
- Submitted: November 9, 2004
- Operation: Air carrier
- Aircraft: [N437AW](https://openairdocs.org/aircraft/N437AW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7744
- Engine: Ge CF343B1
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Ahrs
- Condition: Inoperative
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/A6WA200440167

## Discrepancy

AFTER SWITCHING ATT/HDG FROM NORM TO (2) AT 31000, BOTH CAPT AND F/O AHRS WENT BLANK.  A/P KICKED OFF AND YAW NR 2 DISENGAGED SWITCHED TO NORM AND CAPT AHRS CAME BACK.  THEN 5 SECS LATER F/O AHRS CAME BACK.  REENGAGED A/P AND YAW DAMP,  TO FURTHER PROBLEM. REMOVED AND REPLACED AHRS NR2 COMPUTER IAW 34-21-01, OPS CHECK GOOD.

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