Integrity failure o' 54/38mm adaptor allowed motor t' move forward into body o' rocket and destroy t' back end o' t' rocket--not repairable. Aye aye! Blimey!  T' electronics kicked out t' main parachute and save t' rest o' t' rocket.  T' copper retention clips were melted away, matey, and t' motor ejection spit out t' reload casing, shiver me timbers, which was found.  Saved t' NC, me hearties, upper body, altimeter bay, electronics and both parachute harnesses.  RIP