Hey, guys. Hoping to get your thoughts on an issue I've had over the last couple days.
I took my 1969 M20E in for a pitot/static test two days ago and on the way home my gear initially failed to retract. I hit 110 MPH and they retracted. I flew home and gear extended no problem.
We put the plane on jacks yesterday and the gear are retracting at 110 MPH. I flew with mechanic today and they once again failed to retract until 110 MPH. We were pretty much certain it was the airspeed pressure switch at this point until we did some retractions/extensions in the air at 3000 ft. The gear would retract just fine at 90 MPH while at altitude. We came back and landed, departed again, and the gear would not retract until about 110 MPH.
We are still pretty set on the airspeed limit switch considering it happened immediately after the pitot/static test but the fact that the gear will retract at lower air speeds at altitude does not make sense. Do you guys have any thoughts? I have no squat switch or bypass mechanism.
Thanks.
Josh