Oil return line came off ?
There have been a couple of issues with them cracking, well 1 that I know of.
I replaced mine with the vf52 in Aug of 2011, it was hard but not cracked.
Your's is hard by now, it's not going to "just, come off". It's about 5" long and forced on the nipples by the turbo the is bolted to the up pipe which is hard bolted to the engine block.
IMO there is no way that hose is going to "come off".
The only way for it to "come off" is if you lift the trubo up.
174,000+ miles, 5/20/12 new ej257 short block, 8/20/11 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. Also CHECK YOUR OIL, these cars use it.