fuel caps

[Sam Toler]

was in chs yesterday and saw twin with fuel cap that was not our normal open flap with screw driver then access cap.
it was like what is on citation jets. flush, with tab you open and twist....anyone know anything about this type.

[N3322G]

Hi Sam,

My 1970 39 Twin has always been in the family and it has always had the flush door flap with the turn tab to open with fuel cap underneath (thermos or now screw type) for mains and aux tanks. Tip tanks are the same except curved to follow tank profile. Webco nacelle tanks use flush door with screwdriver access and fuel cap underneath. Miller STC'd wet wing use an integrated handle that pops up, then twists and finally pulls out.

Can't speak for all Comanches, have flown other PA30s with the same set up. During very high prices, perhaps someone wnet to screwdriver approach to slow potential fuel theft.

[Zach Grant L1011jock]

It was probably an aircraft modified with the Miller wet wing tanks. These tanks have the standard flush style lever action caps that you describe as being used on many of the larger GA aircraft, and are on the forward outboard area of each wing.
-Zach