S76 rotorbrake fire caused after pressure blanks were fitted to the calipers after the failed hydraulic module had been removed/disconnected. In flight the fluid within the caliper got hot had nowhere to relieve to and put on the brake.
I think there has been more than one hydraulic brake related fire, Merlin, 139 ?????
Gazelle hydraulic system switching itself on and off in flight due to anti coll light wiring inducing a current in the hydraulic solenoid valve wiring.