Wasn't it Neatishead where there was a fatal fire in the bunker in the 70's/80's?
1966. Arson by a supplier, SAC Cheeseman, who got 7 years. 3 Firemen died.
Bunker lay derelict till renovation started in the mid '70s, though it didn't reopen again as a UKADGE bunker until the early '90s!