Originally Posted by
Autonomous Collectiv
Pretty interesting that the finger is being pointed at the manufacturer rather than the pilot that flew the aircraft out of fuel...
My take is that the manufacturer made it really easy to fly that type out of fuel,
especially considering the frequently recurring fuel indicator issues of the EC135 fleet
("When the manufacturer tested the fuel sensors that were returned from the worldwide fleet, for repair, it found about 70% had no fault. ")
and mixing fuel level indication sensors with very diffent technology (water ingress sensitivity)
and the finnincky fuel pump toggle-'em-switches setup,
let alone putting misleading instructions in the POH regarding time difference between engine fuel starvation left/right
nicely rounded off by an overhead shed-bus switch, that has to be manually addressed to get rad-alt working, right when one has all hands full attempting an autorotation.
It's hard to picture a design less fail safe than the EC135 fuel system,
which is a shame as the mentioned BO105 already showed how a zero attention fuel system might look like.