On a recent IFR flight, I was surprised to find that the LPV approach I wanted to fly into Camarillo, California (CMA) — the RNAV (GPS) Z RWY 26 approach — was unavailable in the G1000 system I was flying. With hundreds of hours of G1000 time in new airplanes in my previous job as a Cessna sales demonstration pilot, I had never seen this before. I didn’t realize that the 172 I had rented was delivered by Cessna in 2005, about one year before Garmin introduced WAAS into its highly popular glass panel. So while the G1000 appeared very familiar to me, it was missing an important component that limited its use. As you are probably aware, WAAS is needed to provide vertical guidance for instrument approaches such as LPVs. So because the system I flew behind was not WAAS equipped, the LPV approach I wanted to fly was unavailable.