# SDR DXTA2026010906472

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2026
- Submitted: January 9, 2026
- Operation: Air carrier
- Aircraft: N385QS
- Make and model: Cessna 680SOV
- Aircraft serial: 6800115
- Aircraft time: 15,697 hours, 10,564 cycles
- System (JASC): [3620 · Pneumatic Indicating System](https://openairdocs.org/jasc/3620)
- Part: Pressure Valve
- Part number: 99145202
- Part serial: D2916
- Condition: Faulted
- Stage of operation: CL
- 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/DXTA2026010906472

## Discrepancy

SHORTLY AFTER TAKEOFF POWER APPLIED,  HP VALVE FAIL LT AMBER CAS LIGHT ILLUMINATED.  COMPLETED APPROPRIATE QRH.   INSPECTED GD001 GROUND. NO DISCREPANCIES. RANG WIRING FROM VALVE TO PYLON,. NO DISCREPANCIES.  R & R HP VALVE. OPS CHKD GOOD,  BUT LEAK CHECKS NOT GOOD. INSTALLED GASKET SEALS . STILL LEAKS.  R & R COUPLINGS HOLDING THE HP VALVE WITH TWO NEW GRAFOIL SEALS. LEAK CHKD GOOD. WORKED IAW MM 20-10-40.

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