Airplane knowledge Flashcards
Proximity Switch Electronic Unit
The PSEU monitors the following systems: • takeoff configuration warnings • landing configurations warnings • landing gear • air/ground sensing.
White airspeed bug
Take off: V2+15(30 deg bank)-( under the white bug limit bank angle 15 deg)
Landing: Vref+20 for engine failure flaps 15
Landing Gear limitation
Retract 235k
Extend 270/.82M
Hydraulic STBY system
backup if system A and/or B
pressure is lost.
- thrust reversers
- rudder
- leading edge flaps and slats (extend only)
- standby yaw damper.
Landing Gear Transfer Unit
Sys B engine driven pump supply the volume of hydraulic fluid needed to raise the landing gear at the normal rate when sys A
engine–driven pump volume is lost. when all of the following conditions exist:
• airborne
• No. 1 engine RPM drops below a limit value
• landing gear lever is positioned UP
• either main landing gear is not up and locked.
Hyd STBY Sys Manual operation
illuminates the STBY RUD ON, Master Caution, and FLT CONT lights.
•Positioning either FLT CONTROL switch to STBY RUD
•Positioning the ALTERNATE FLAPS master switch to ARM:
allows the stby sys to power the leading edge flaps and slats and
thrust reversers.
Hyd STBY Sys Automatic Operation
illuminates the STBY RUD ON, Master Caution, and FLT CONT lights
initiated when the following conditions exist:
• loss of system A or B, and
• flaps extended, and
• airborne, or wheel speed greater than 60 kts, and
• FLT CONTROL switch A or B Hydraulic System ON
OR:
• the main PCU Force Fight Monitor (FFM) trips
EGT blinking
Displayed (white-blinking) EEC senses conditions that may lead to hot start or stall during ground starting. Current versions of EEC software will automatically cut fuel for an impending hot start or stall during ground starting.
EGT blinking
Displayed (white-blinking) EEC senses conditions that may lead to hot start or stall during ground starting. Current versions of EEC software will automatically cut fuel for an impending hot start or stall during ground starting.
IAS DISAGREE
5 knots more than 5 seconds
IAS DISAGREE
5 knots more than 5 seconds
LE TRANSIT LIGHT
SFP: flaps 25(Normal) flaps 15 ( ALT)
All other: flaps 5 (Normal) flaps 10(ALT)