Ahh bri, you know what thats prolly what I saw. but I think it was like one tier up from that scam of replace'n R134 into R12 systems... this was putting Propane into a R12 system to replace the R134 that was put in. I am guessing that the damage from the R134 let the Propane leak and boom.
ok I will shut up now and go back to my corner
hehehe