9.2 Power Plant Flashcards
How do you carry out a manual start?
1) PMS set to manual
2) Booster pumps ON and move the starter switch to MAN
3) When oil pressure rises ignition is set to IGN
4) Move the throttle slowly forward until ITT increases. As ITT peak move throttle slowly to IDLE.
5) When the engine reaches IDLE(NG 67% +- 7%) , with the throttle above idle stop, the pilot must return starter, ignition and fuel pumps switches to AUTO
What is Manual start?
Throttle manually controls the rate of increase of fuel flow to the engine and therefore rate of rise of ITT. Of throttle is moved forward too quickly, the ITT could exceed limits and the engine could surge. Shut down the engine if ITT fails to rise (no light up) , exceeds limits or NG stabilizes below IDLE.
Why 2 peaks on ITT?
First test is to test the integrity of FCMC, while the second peak is the actual ITT of the aircraft.
How do you know where the fire is occurring when captions on DWP and MFD appears?
White smoke (electrical fire) Black smoke (fire caused by fuel)
How many fire overheat detectors and where are they found?
no. 1 found in hot section of gas generator case
no. 2 found in accessory gearbox
What is the oil T and Ps green, amber and red range in right MFD and what are the indications?
The indications are green when the value is in the limits and amber then red when the value is outside the normal operating limits
TEMPERATURE Green - Oil temperature from 10 to 105 degrees Amber “OIL TEMP” cap on MFD − Oil temperature > 105 °C (221 °F − Oil temperature < 10 °C (50 °F). Red “OIL TEMP” cap on MFD − Oil temperature > 110 °C (230 °F) − Oil temperature < -40 °C (-40 °F) − Oil temperature > 105 °C (221 °F) for longer than 10 minutes.
PRESSURE
Green - 90 to 125 psi
Amber
“OIL PRESS” cap on MFD
− Oil pressure < 6,21 bar (90 psi) for longer than 10s with engine Ng >= 72%
− Oil pressure < 4,83 bar (70 psi) for longer than 10s
− Oil pressure > 8,62 bar (125 psi) for longer than 55s
− Oil pressure > 8,96 bar (130 psi)
Red
“OIL PRESS” cap on MFD
“OIL” cap on DWP
− Oil pressure < 4,83 bar (70 psi) for longer than 20s
− Oil pressure > 8,96 bar (130 psi) for longer than 20s
− Oil pressure > 13,72 bar (199 psi)
What are the PMS manual captions?
PMS MANUAL on MFD Alerts and ENG page
PMS (red) DWP
PMS caption on the DWP
Definition of chicken fuel.
‘Chicken Fuel’ is the minimum fuel computed from the furthest point of the navigation route, where the aircrew must initiate the chicken fuel recovery profile when it is assessed that he/she will go below ‘Chicken Fuel’ before reaching the furthest point.
(SOP 8-1 – Navigation)
Chicken fuel is calculated from the furthest point directly back to Pearce.
Number of propellers blades on the PC21
Five-bladed, variable pitch, feathering, constant speed.
Definition of Min Power and Min Practicable Power.
Minimum Power: Power setting to maintain 140 – 160 kts (25%-35% TQ) after the initial CAPS/FRC actions.
Minimum Practicable Power: Power setting to reduce to stabilise the nature of the engine problem. If the affected system returns to within ops limits at a particular setting, that power setting should be used for recovery.
