# SDR QR9R2023030900002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2023
- Submitted: March 9, 2023
- 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: 07720219149
- Aircraft time: 3,570 hours
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Sensor
- Part number: 9580115910
- Part serial: 17004MXM
- Condition: Illuminated
- Stage of operation: HO
- How discovered: V
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2023030900002

## Discrepancy

OVERSPEED FAIL SYSTEM #2 CAUTION ILLUMINATED DURING HOVER TAXI. REMOVED AND REPLACED DOUBLE SENSOR IAW ARRIEL 77-14-00, 1-1. MTF FOR REPLACEMENT OF #2 OVERSPEED SENSOR COMPLETED IAW AMM 05-60-00, 6-12.

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