# SDR 2013FA0000029

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 2013
- Submitted: January 16, 2013
- Operation: General aviation
- Aircraft: [N946DA](https://openairdocs.org/aircraft/N946DA), registered now
- Make and model: Diamon DA20-C1
- Registry model: [Diamon DA20-C1](https://openairdocs.org/model/diamond-aircraft-ind-da20-c1) (OpenAirDocs)
- Aircraft serial: C0446
- Aircraft time: 3,359 hours
- Engine: Cont IO240B
- Engine time: 1,386 hours
- Propeller: Snsnch W69EK63
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: B-Nut
- Part number: NOTPUBLISHED
- Condition: Loose
- Location: Fuel System
- Part time: 3,359 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000029

## Discrepancy

THE ACFT REPORTED A SIGNIFICANT FUEL LEAK.  INSPECTION REVEALED A LOOSE JAM-NUT. LESS THAN FINGER TIGHT, CAUSING FUEL TO FLOW FREELY PAST THE SHUTOFF VALVE PACKING.  THIS APPEARS TO HAVE BEEN TRIGGERED BY THE OPERATION OF THE FUEL SHUTOFF VALVE DUE TO A DIFFERENT MINOR INCIDENT.

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