Amateur/Home Built/Experimental
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 80; Flight Crew Total 3100; Flight Crew Type 350
Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter VFR In IMC; Inflight Event / Encounter Weather / Turbulence
General None Reported / Taken
Aircraft; Human Factors; Weather
The weather at ZZZ was forecast to be 1500 BKN and good visibility (VFR conditions; though marginal). I was VFR on top for the latter portion of my flight; and the weather conditions deteriorated to worse than forecast. As I got near my destination; the reported weather was 500 OVC and 3 miles visibility. At that time; I had legal VFR reserves of fuel; but I was not certain that I could safely make it to an airport with VFR conditions. Although I am instrument rated and current (ATP); the aircraft is not certified for IFR flight. I considered my alternatives; and decided to shoot the RNAV (GPS) XX approach into ZZZ; which I am very familiar with and have done many times in [a] Baron and in a King Air. The approach and landing were accomplished without incident; but nonetheless the aircraft is not certified for IFR flight.The primary cause was my decision to press on with the forecast for VFR weather at my destination. While there was never any hazard to me or anyone else; I put myself in a situation where I had to shoot an instrument approach in an aircraft that is not certified for it. Lesson learned!
GA pilot reported performing an instrument approach in a VFR-only aircraft.