# SDR 2026FA0000133

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2026
- Submitted: February 18, 2026
- Operation: General aviation
- Aircraft: [N79SG](https://openairdocs.org/aircraft/N79SG), registered now
- Make and model: Cessna 510
- Registry model: [Cessna 510](https://openairdocs.org/model/cessna-510) (OpenAirDocs)
- Aircraft serial: 5100043
- Aircraft time: 4,274 hours, 3,749 cycles
- Engine: Pwc PW615FA
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Pressure Switch
- Part number: 99120332
- Part serial: 13262
- Condition: Leaking
- Location: Fuel Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2026FA0000133

## Discrepancy

REPEATED FAILURE OF FUEL PRESSURE SWITCH P/N: 9912033-2 CAUSING FUEL TO LEAK FROM THE WEEP HOLE OF THE SWITCH BODY. FUEL THEN LEAKS INTO THE COWLING. FAILURES INCLUDE SWITCH S/N'S: 13646, 13661, 13262 ALL FAILURES HAVE OCCURRED WITHIN A 12-MONTH PERIOD OF 01/2025-01/2026.

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