# SDR CA010314014

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2001
- Submitted: March 20, 2001
- Operation: Air carrier
- Make and model: Pilats PC1245
- Engine: Pwa PT6A67B
- Propeller: Hartzl HCE4A3D
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Gyro
- Part number: 1242102000
- Condition: Failed
- Location: Cockpit
- Part time: 6 hours, 5 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA010314014

## Discrepancy

(CAN) WHEN TRYING TO SWITCH THE NUMBER ONE ATTITUDE HEADING REFERENCE UNIT (AHRU) FROM MAGNETIC  TO FREE GYRO THE UNIT WOULD NOT SWITCH. THE NR 1 AHRU WAS REPLACED.

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