world of tweed
All the fuel pumps, boost and Jett o/ride, were modified from Crane Hydro-aire to FR-hitemp. with the complete embodiment of the SB all the restrictions on pump usage were removed.
Maybe you still have one or two a/c awaiting full embodiment
Interestingly enough the NTSB investigation found the Crane pumps to not be at fault, rather pointing the finger at a wiring short outside of the tank that allowed a 'high voltage/current' to enter via the fuel qty. measuring system.