Hi All, thanks for your help. As the presentation is tomorrow, I've run out of time for more research. I have tried to locate the magazine pictures and diagram but to no avail.
I have had to return the reports to the SFSO, but as I have no scanner there was no way to copy them to here.
For those who are interested, WJ753 piled in at Marham returning from scotland with four on board. All survived, despite cartwheeling and pirouetting, and pilot being fired down the runway still in his seat. (3 crew were very seriously injured whilst the supernumerary nav got away with a broken ankle-still managed to leg it clear!)
WT478 landed wheels up, also at Marham I think, after student pilot raised gear instead of flap whilst trying to correct a botched asy circuit. QFI didn't notice wheels were up and belly landed it. Aircraft was repaired and went on for a few more years.
Cheers again for your help.
PH