QRH OPS 07A: Hydraulic Controls Architecture
If you only had
BLUE
- no THS and only one elevator
YELLOW
- no roll control, except two spoilers per each wing (no 2 + 4), no Slats
GREEN
- apart from one elevator side lost
- all the rest OK
The green system has been designed to cover practically all users around the structure. Unlike the other two.
Free memory trick for you: Sort the HYD systems alphabetically
1) B-G-Y
2) imagine the wing cross-section, slats front, flaps at the back
3) the first two B-G control the slats, the last two G-Y control the flaps.
Courtesy of an exquisite gentleman M. B. tasked with my assimilation to the collective 15 years ago right this time in Toulouse. I never needed to remember any more about the hydraulic, save for Wheel doors being on Green and NWS G or Y.
Do not lose too much sleep over OPS.07A.
Last edited by FlightDetent; 5th Apr 2020 at 22:02.