Titan II. Damascus incident, 9 mt bomb exploded from fuel leak caused by a dropped wrench. Warhead stayed intact.
75 ton door to the silo flew off like a Frisbee cutting down trees.
Careful on the phrasing.
The 9 MT nuclear warhead did NOT explode, nor did the on-board HE.
The missile fuel is what blew when the spanner/socket dropped from the wrench.
1971 grad of 463 tech school & alum of 51st MMS & 394th MMS at VAFB.
Worked the last TII ICBM op test flight in Aug 76 with Martin Marietta.