# SDR YN8R20130402002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 2013
- Submitted: April 2, 2013
- Operation: General aviation
- Aircraft: [N863FE](https://openairdocs.org/aircraft/N863FE), registered now
- Make and model: Cessna 208B
- Registry model: [Cessna 208B](https://openairdocs.org/model/cessna-208b) (OpenAirDocs)
- Aircraft serial: 208B0186
- Aircraft time: 11,963 hours, 13,438 cycles
- System (JASC): [3010 · Airfoil Anti/De-ice System](https://openairdocs.org/jasc/3010)
- Part: Valve
- Part number: 1313207
- Part serial: CAVIM12D0309
- Condition: Faulty
- Location: Zone 600
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YN8R20130402002

## Discrepancy

DURING FLOW CHECK, FOUND PROPORTIONING VALVE MALFUNTIONING.  INTERNAL CHECK VALVE INOP LETTING FLUID IN LINES TO PANELS BLEED BACK INTO TANK.  IAW OPS CHECK, THE CHECK CAN BE DONE THREE TIMES.  THE VALVE FAILED EACH TIME.  REPLACED VALVE WITH ANOTHER NEW VALVE WHICH THEN PASSED THE FLOW CHECK.

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