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The fail safe position for the EDAS system doors in 787-9 is. Close. Open. Half open.

How many flight control electronic (FCE) batteries does the B-787 have. Four FCE batteries. Two FCE batteries. Six FCE batteries.

How many hydraulic power control units(PCU) for the spoilers system are in the B787. Five (5). Seven (7). Ten (10).

How many PSDCs ( Proximity sensing data concentrators) are there. Six. Three. Nine.

Which flight control electronic (FCE) cabinet does not have flight control module. Flight control electronic (FCE) cabinet C3. Flight control electronic (FCE) cabinet C2. Flight control electronic (FCE) cabinet C1.

Which unit is used to pressurize the landing gear alternante system. Left engine. Center hydraulic system. Dedicated electrical/hydraulic power pack.

How can you retract the Ram Air Turbine. Center Hyd SYS ON, Ground test switch ENABLE, Blades aligned, P57 panel stow switch in ON position. Retract the RAT by pushing it manually into the bay without hydraulic power. Use the left hydraulic system and place the ground test switch to DISABLE.

The landing gear alternate extension system is used to. Steer the nose landing gear during taxi. Supply hydraulic pressure to the normal landing gear system. Extend the landing gear during abnormal operation and open the landing gear doors on ground for maintenance.

The horizontal stabilizer trim actuator (HSTA) has. Two electrical motors. Seven electrical motors. Five electrical motors.

In reference to NWS, the tiller turns. Up to 90° regardless of aircraft speed. Up to 70° at low speed and as speed increases, the tiller allowable turn angle decreases. Up to 40° at all taxi speeds.

The electro-mechanic brake system consists of. Four electric brake actuator controller (EBAC) and thirty-two electronic brake actuator (EBA) four per brake. Two electric brake actuator controller (EBAC) and thirty-nine electronic brake actuator (EBA) Two per brake. Six electric brake actuator controller (EBAC) and thirty-five electronic brake actuator (EBA) six per brake.

Which flight control electronic (FCE) cabinet has FCE batteries. FCE left and right. FCE left only. FCE cabinet C1.

The Auto Bleed Valve is used to. Pressurize the hydraulic reservoir during flight. Bleed the air from hydraulic reservoir on ground only. Supply hydraulic fluid to the engine drive pumps.

Which are the 3 new additional positions for flaps in flight control system on the 787-9. 15-18-19. 12-15-17. 10-17-18.

If the door unsafe lights are off. The door is fully open and locked in position. The door is in safe condition to enter the wheel well. The door control system has failed completety.

What is the main function of electrical brake actuator controller(EBAC). It controls the electrical brake actuator (EBA). It controls the entire aircraft hydraulic system. It manages landing gear tire pressure.

Which is the function that controls the hydraulic system. HYDIF. EBA. PFCF.

For with function are used the flight control surface lock switches. To lock the wing or/and tail flight control surface during maintenance. They lock surface automatically when exceeding maximun speed limits. They improve aircraft maneuverability during flight.

How many controls modes does the primary flight controls function (PFCF) have. Two controls modes normal and secondary. Three controls modes normal secondary and direct. One control mode normal.

Where is the left hydraulic EMP located. On the engine strut. In the tail cone. In the wing leading edge.

To operated hight lift in alternate mode you need select. Press the alternate mode pusbutton only. Set flight controls to direct mode first. Arm switch to arm pisition and control selector to retract or extend position.

How can you return from secondary control modo to normal control model. Manually setting the PFC disconnet switch to DISC position and then to AUTO position. Automatically returns to normal after one minute. Select secondary mode again to cancel it.

How many control mode does the high lift funtion (HLF) have. Three control model primary, secondary and alternate. Two control model primary and secondary. Only alternate.

How can you energize the EDP despressurization solenoid valve. Engine EDP push button switch to OFF. Engine EDP push button switch to ON. EMP push button switch to OFF.

Whitch is the function of the hydraulic system heat exchangers. Filter debris from the hydraulic fluid. To cool the hydraulic fluid and warm the tanks fuel. Only cool fue before it enters the engines.

Where is NWS remote electronic unit located. Internal of p40. Near the main landing gear. On the flight deck main instrument panel.

In the center hydraulic system has two EMP (C1-C2) pumps which is the primary pump. C1 or C2 operate as primary pump depending on calendar day. C1 is always primary C2 is always backup. Both run at the same time as primary.

The high lift system is working in alternate mode the extension is limited to. Flap 20 and slats to middle positions. Flap 10 and slats to middle positions. Flap 5 and slats to middle positions.

If there a loss of the fly-by-wire system. One RVDT in the cluster connects directly to a spoiler electronic control unit (EMCU) for spoiler backup control. RVDT disconnect entirely and send no signals to any unit. Only the ailerons remain controllqble, all spoilers stop working.

How many hydraulic accumulators are there. Four, one in each hydraulic reservoir and one for NLG. One in each hydraulic system only. One for NLG.