# SDR 20000808SH019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2000
- Submitted: August 8, 2000
- Operation: General aviation
- Aircraft: [N90FC](https://openairdocs.org/aircraft/N90FC), registered now
- Make and model: Cessna 310R
- Registry model: [Cessna 310R](https://openairdocs.org/model/cessna-310r) (OpenAirDocs)
- Aircraft serial: 310R1838
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Check Valve
- Part number: 1H374
- Condition: Failed
- Location: Engine Compart
- Part time: 705 hours
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20000808SH019

## Discrepancy

DURING ROUTINE MAINTENANCE, DISCOVERED 2 UNSERVICEABLE CHECK VALVES, PN''S 1H37-4, FOR THE PNEUMATIC DEICE SYSTEM.  BOTH VALVES HAVE 21 MONTHS AND 705.1 HOURS SINCE NEW.  THESE VALVES CALL FOR YEARLY INSPECTIONS STARTING AT 5 YEARS FROM NEW THOUGH 10 YEARS REPLACEMENT.  THE MANUFACTURER HAS BEEN NOTIFIED AND ONE VALVE HAS BEEN SENT FOR THEIR EVALUATION.  (X)

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