A: I have a narrow deck configuration in my 1964 PA 30-270. The first entry in the aircraft logbook, made on Jan. 3, 1964, shows radio installation and LE serial #S or L 606-55 and the RE L 640-55. However the engine log books show LE L 938-55 and RE L 909-55 and the first oil change at 55 hours. Both are IO-320-BIA. I have not yet confirmed the numbers on the installed units — too many screws — and I don’t know the exact place of the info plate.Also, the N number was changed from N7373Y to N4009Y in 1966, but I have no idea why. Please help! I am baffled.
KARL ROESCH, Arlene, Montana
A: Karl, the difference in your logbooks is interesting and confusing, to say the least. The only thing I can think of is that the original engines were replaced at some point with the higher serial number engines. I am surprised, however, that this isn’t reflected in the aircraft log. [Read more…]