L6 - APU & Hydraulics Flashcards
Max alt for bleed and electrical load?
10,000ft
Max alt for bleed only?
17,000ft
Max alt for electrical load only?
41,000ft
APU bleed open for eng start?
Eng idle power only / DUAL BLEED
How many APU Start attempts beofre cooling?
3 consecutive then 15 mins cooling
Start cycle time?
Up to 120 seconds
When can APU bleed be selected ON?
1 min after a succesful start up
APU Stop cycle time?
Auto cool down cycle of 1 minute, min 2 min before batt off
What implications does the MAINT light on have on the APU?
Low oil qty - can still operate APU
APU fuel feed with AC pump on?
Left side of fuel manifold (fwd pump)
APU fuel feed with AC pump off?
Suction fed from No.1 main tank
Max alt for APU start attempt?
41,000ft (7 mins of battery power)
APU Auto shut down?
Fault, Oil px, Overspeed, No DC, EGT
What are the four components of the standby hydraulic system? (SRLS)
- LE flaps and slats - Extention only
- No.1 and No.2 reversers
- Standby yaw damper
- Standby rudder
Min Hydro px?
2800psi
Normal Hydro px?
3000psi
Max Hydro px?
3500psi
Hydro quantity displays?
0 - 106%
Refill (RF) displays?
<76%
Brake accumulator applications?
Approx 6 norm or park brake
What are the 11 components of the hydraulic system A?
(A REAL GIANT P)
- Autopilot A
- Rudder
- Elevator and feel
- Ailerons
- Landging gear
- Ground spoilers
- Inboard spoilers
- Alternate brakes
- Normal nose wheel steering
- Thrust Reverser No1
- PTU
What are the 13 components of the hydraulic system B?
(A REAL TOY BAT)
Ailerons
Rudder
Elevators
Autopilot B
Leading edge devices
Trailing Edge Flaps
Outboard Flight Spoilers
Yaw Damper
Brakes
Alternate Nosewheel Steering / LTU
Thrust Reverser Right
