I was once tasked to pick up an entire inboard flap from a three week old Boeing 747. The entire thing had fallen off that aircraft as the flaps were lowered during the IGS to the old Kai Tak airport, Hong Kong.
Strange thing was, it was lying slap bang on the piano key markings of the then not yet commissioned CLK airport!
It was far too long to fit in the S-70 cabin and the CAD reps who had tasked us wanted me to put it in a cargo net and fly it underslung. I refused, because it would be a dangerous load - after all, it was meant to fly....
We fitted it across the cabin, "P stropped" to the floor and facing upside down and backwards. Flew OK at 50 kts with both doors open and we safely recovered it to its intended destination at Kai Tak.