Running the accident events backwards, we get;
(1) Death of Flt. Lt Cunninghan, caused by
(2) Multiple injuries beyond the range of human tolerance, caused by
(3) Ground impact from 300 ft, caused by
(4) Failure of main chute to deploy, caused by
(5) Failure of shackle to release, caused by
(6) Over tightend bolt, caused by
(7) Inadequate technical information, caused by
(8) ???????
Where the hell does the seat pin fit in that sequence?
DV