Aircraft Carrier Problems

[FuturePilot]

I just installed the arrcab2.6 and a carrier package. Whenever I fly near the carrier, (I don't even touch the carrier) it says building crash,  ::) so I turned crash off and now I just go straight through the carrier.   >:(

I used to have this installed on another computer and it all worked. The only difference I can think of is SP2. I just recently installed that (before I tried to install the carriers). Could that be the problem?  :-?