Bell 412 Operations above 5,000 ft
Evening all,
I am after information regarding 412 operations above 5,000 ft.
When such operations are carried out in the sim the after start FUEL XFEED checks with OVRD CLOSE will result in engine shutdown when the corresponding BOOST PUMP switch is selected OFF.
Checks of the Electrical Systems will also result in dual engine shutdowns when the EMERG LOAD switch is engaged following deselect of GEN 1 and 2 (due of course to both boost pumps coming off line).
Clearly this phenomena is in line with published restrictions regarding the operation (or not...!) of the fuel booster pumps above 5,000 ft and the limitations of the engine driven fuel pumps.
Has anyone out there got practical experience of operating 412s at altitudes above the 5,000 ft threshold and if so how have you addressed these issues in your after start detailed checks.
Many thanks