# SDR YN8R20130402003

- 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: 208B2186
- 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: 1313213
- Part serial: CAVIM12D0190
- Condition: Faulty
- Location: Zone 300
- 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/YN8R20130402003

## Discrepancy

DURING FLOW CHECK, FOUND PROPORTIONING VALVE MALFUNTIOINING.  INTERNAL CHECK VALVE INOP LETTING FLUID IN LIINES TO PANELS BLEED BACK INTO TANK.  PER OPERATIONAL CHECK, THE CHECK CAN BE DONE 3 TIMES.  THE VALVE FAILED EACH TIME.  REPLACED VALVE WITH ANOTHER NEW VALVE WHICH THEN PASSED THE FLOW CHECK.  THIS IS THE PROPORTIONING VALVE IN THE AFT FUSELAGE THAT FEEDS THE STABILIZER PANELS.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.