# SDR 2013FA0000028

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 16, 2013
- Submitted: January 16, 2013
- Operation: General aviation
- Aircraft: [N920DA](https://openairdocs.org/aircraft/N920DA), 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: C0394
- Aircraft time: 3,810 hours
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: B-Nut
- Condition: Loose
- Location: Fuel Line
- Part time: 3,810 hours
- Stage of operation: TX
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2013FA0000028

## 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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