I think the pilot did not understand the fuel system. Thats why the transfer pumps were off. The VMS recorded the correct warnings and they were ignored. As was the flight manual requirement to land. As was the Company OM MLA requirement. Airmanship in terms of time/fuel calculations also ignored. In fact just about every safety break in place had been breached. Finally a poor response to double OEI.
DB - Yes, maybe after 5 years of doing the job and manipulating the XFER pump switches on every flight he simply forgot how to do it...
And maybe the pilot and the front seat observer just felt like ignoring the fuel level and red FUEL LOW warnings that night and saying nothing to ATC or the police control room.
All based on a 9 page Special Bulletin with limited facts? Did you give the AAIB a call to tell them they could close this case as you have solved it?
Are you really that effing thick?
P.S. Do tell us how much experience you have on the EC135 in the emergency services role?