Hi everyone,

Weird thing happening while I am going through my Initial 337 Transition course. I bought N937DY up in Canada and when the Canadian Instructor and I flew down to KHND, we cruised nonstop at 17k with no issues whatsoever. Heat and pressurization were wonderful.

The plane sat on HNDís flight line for about two months while I wrangled with the Insurance cartels and finding a Initial/Transition school.

When the Initial school instructor and I flew to KDVT, we noted manifold pressures sub nominal for a turbo/pressurized aircraft. We flew it again the next day in a meticulous test profile and (hereís the weird part) both MPs are low to the point of seeming like a normally aspirated plane. Take off pressures are normal but as we get up to and past 10k, the MPs donít keep up with the climbs and the cabin pressures donít seem to keep up either. CHTs, TITs and etc are good; engines are leaned properly and everything else is conducted in accordance with the current POH.

Does anyone out there know of a great 337 A&P in the Phoenix area. We have elected to slow down or suspend the Initial/Transition training until we can get the A&P to check things out.

Please help - I want to fly my airplane solo!!!!!!!!