# SDR QR9R2025032600001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 26, 2025
- Submitted: March 26, 2025
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Make and model: Bolkms BK117C2
- Aircraft serial: 9792
- Aircraft time: 3,943 hours
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Gyro
- Part number: 501184501
- Part serial: 1682
- Condition: Faulty
- Location: Cockpit
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025032600001

## Discrepancy

THE STANDBY HORIZON (AI-803CY) WOULD NOT CAGE TO PROPER SETTING DURING OPERATIONAL CHECK. PART WAS RECEIVED BAD FROM SUPPLY.

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