Well, I know that even the best loading crew can f*ck up from time to time. Iīve seen cargo loaded on the wrong aircraft and only discovered on pushback and I know of an incident with a very reputable airline, where the loading crew didnīt obey the instructions and loaded 8 tons of luggage into the rear cargo hold of an A300 instead of distributing it as per load sheet. The result was that the aircraft was extremely tail heavy, the pilots, believing the load sheet, only noticed during rotation, but through pure luck and airmanship managed to get the aircraft airborne and landed at the destination barely avoiding a tailstrike.