Small Transport; Low Wing; 2 Turbojet Eng
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Flight Instructor
Flight Crew Last 90 Days 43; Flight Crew Total 5400; Flight Crew Type 531
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Weather / Turbulence
General None Reported / Taken
Airport; Human Factors
During preflight planning; the airport was reporting [Field Condition (FICON)] NOTAM of 'Runway 03 FICON 5/5/5 40 PCT 1/8IN DRY SN OBS AT 2010XXXA09' and APRON ALL FICON ICE OBS 2010XXXA12.'  I performed my own inspection of taxiways and runway and observed at least 40% covered in ice which would have resulted in a FICON code of 1/1/1.  These improperly reported conditions are commonplace at HYR. Despite numerous attempts to educate the airport on proper reporting procedures; they have been unwilling to report accurately. This is a very serious safety concern for local pilots; but more dangerous for turbine powered aircraft flying transient into this location without knowing these discrepancies exist between reporting and actual conditions.
Pilot reported incorrect NOTAM's at HYR airport relating to inaccurate runway conditions.