Dan, I went 'round and 'round with the Columbia, SC FSDO about putting a non-TSO'd analog voltmeter in my Alon. At first they said no, it has to be TSO'd. Then when I did some research and determined that a TSO had never even been written for an analog voltmeter, and called them back, and proved that fact to them, they finally said that I could put it in with a 337 if my A&P "accepted full responsibility" for the unit being installed. My A&P didn't have a problem with it and signed it off. So - basically, the Columbia FSDO finally ended up saying the same thing that the AOPA told you. Somewhere on the internet is a complete listing of every TSO (Technical Service Order) ever written. It's interesting to see what items there are TSO's for, and which items there aren't TSO's for. Best Regards,
Wayne DelRossi Alon N5618F Hours logged since restoration: 371.9 "Nobody has ever scientifically proven that life is supposed to be serious." **************It's Tax Time! Get tips, forms, and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolprf00030000000001)
