# SDR QR9R20210908001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2021
- Submitted: September 8, 2021
- 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: 09720959297
- Aircraft time: 3,095 hours
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Display
- Part number: 0110106000
- Part serial: 23428329
- Condition: Faulted
- Location: Cockpit Left
- 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/QR9R20210908001

## Discrepancy

GNS-430 DISPLAY COULD NOT BE READ FROM THE PILOT SIDE. DISPLAY ONLY VISIBLE WHEN VIEWING DIRECTLY OVER UNIT. REPLACED GNS-430 IAW 145MMS-023.

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