Hydraulics Flashcards
1
Q
When is the PTU inhibited?
A
Parking brake off and n/w steering disconnected
If only one engine master is set to on
During cargo door operation or yellow hand pump use and 40s afterwards
PTU pushbutton set to off
FCOM hydraulics
2
Q
Which systems have hydraulic priority and how does this work?
A
Primary flight controls have priority and each hydraulic system has a priority valve to cut off high power users (gear, flaps, slats, emergency generator) if the system pressure gets too low.
FCOM
