AM.II.E.R4
Risk managementStorage and handling of hydraulic fluids.
From the FAA library
- Chapter 12: Hydraulic & Pneumatic Power Systems › Boeing 777 Hydraulic System › Center Hydraulic System
Flight controls. Reservoir The hydraulic system reservoir of the center system contains the hydraulic fluid supply for the hydraulic pumps. The reservoir is pressurized by bleed air through a reservoir pressurization module. The reservoir supplies fluid to the ADPs ... ACMPs through a standpipe. The other ACMP gets fluid from the bottom of the reservoir. The reservoir also supplies hydraulic fluid to the landing gear alternate extension system. The ACMPs are the primary pumps in the center hydraulic system…
- Chapter 12: Hydraulic & Pneumatic Power Systems › Boeing 777 Hydraulic System › Left & Right System Description
Left & Right System Description The left and right hydraulic systems are functionally the same. The left hydraulic system supplies pressurized hydraulic fluid to operate the left thrust reverser and the flight control systems. The right hydraulic system supplies pressurized hydraulic ... fluid to operate the right thrust reverser, flight control systems, and the normal brake system. [Figure 12-67] Figure 12-66. A Boeing 777 hydraulic system. Reservoir The hydraulic system reservoirs of the left and right system contain the hydraulic…
- Chapter 12: Hydraulic & Pneumatic Power Systems › High-Pressure Systems › Emergency Backup Systems
Pushing the handle fully downward closes the outlet valve and allows any nitrogen present in the emergency landing gear extension system to be vented overboard. The venting process takes approximately 30 seconds. Dump Valve As compressed nitrogen is released ... landing gear selector/dump valve during emergency extension, the pneudraulic pressure actuates the dump valve portion of the landing gear selector/dump valve to isolate the landing gear system from the remainder of hydraulic system. When activated, a blue DUMP legend…
- Chapter 13: Aircraft Landing Gear Systems › Landing Gear Rigging & Adjustment › Landing Gear Retraction Test
Landing Gear Retraction Test The proper functioning of a landing gear system and components can be checked by performing a landing gear retraction test. This is also known as swinging the gear. The aircraft is properly supported on jacks ... this check, and the landing gear should be cleaned and lubricated if needed. The gear is then raised and lowered as though the aircraft were in flight while a close visual inspection is performed. All parts of the system should…
- Chapter 13: Aircraft Landing Gear Systems › Landing Gear Alignment, Support, & Retraction › Large Aircraft Retraction Systems
Figure 13-37. A simple large aircraft hydraulic gear retraction system. To lower the gear, the selector is put in the gear-down position. Pressurized hydraulic fluid flows from the hydraulic manifold to the nose gear uplock, which unlocks ... nose gear. Fluid flows to the gear-down side of the nose gear actuator and extends it. Fluid also flows to the open side of the main gear door actuators. As the doors open, sequence valves A and B block…