# SDR QR9R20211004001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2021
- Submitted: October 4, 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: 15723729751
- Aircraft time: 2,280 hours
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Transponder
- Part number: 0110045560
- Part serial: 84154185
- Condition: Defective
- 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/QR9R20211004001

## Discrepancy

TRANSPONDER LOCKING MECHANISM DEFECTIVE, COULD NOT BE SECURED TO AIRCRAFT. PART BAD FROM SUPPLY.

*NOT FOUND IN AIRCRAFT INQUIRY

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