Am 28.04.2020 um 08:21 schrieb ken mason:
In my aerospace career the following major rocket failures
occurred related directly to a solid rocket motor.
Space Shuttle Challenger
Titan 34D, VAFB SRB failed ~T+15, loss of a 1 B$ DOD payload, possibly
KH-11, 12 or Lacrosse.
Delta with SRB failure ~T+15, I forgot the date/mission but you all
remember the shower of flaming solid propellant onto PRV's,
Privately Owned Vehe's
IUS failed at orbital insertion, circa ~1986
I was involved in the investigations of #2&4, both occurred mid 80's
while working at UTC/CSD San Jose,CA.