problem children Flashcards
Higher level function for the horizontal stabilizer is to:
Higher level function for the horizontal stabilizer is to:
Keep the airplane trimmed via the autopilot during deployment of the speed brakes
Prevent structural damage at high speeds
What are the higher level functions associated with pitch?
What are the higher level functions associated with pitch?
1. Gain on airspeed (as airspeed increases, pitch deflection decreases)
2. Elevator thrust compensation (pitch control is maintained during thrust changes)
3. AOA limiting
Ground Spoilers
Ground Spoilers
All panels 1,2,3,4,5
1,2 60* 3,4,5 40*
Operational on ground only
Deploy via:
Weight-On-Wheels (WOW)
Wheel speed above 45kts air airspeed above 60kts
Thrust Lever Angle (TLA) below 26*
Retract via rollout:
Wheel speed auto retract below 45kts or at least 5 sec
Thrust Lever Angle (TLA) below 26*
Retract via GoAround:
Thrust Level Angle greater than 35*
Ground spoilers will not work in Direct Mode
Higher level functions for yaw are:
Higher level functions for yaw are:
Yaw damp
Turn coordination
Gain on airspeed – as airspeed increases, rudder deflection decreases
What does WML mean on the engine indications?
What does WML mean on the engine indications?
Windmilling engine
The FADEC has detected a flame-out and is attempting an auto re-light, or
An assisted start has been commanded
What will trigger an ATTCS event?
What will trigger an ATTCS event?
N1 difference >15% between engines
Engine failure during TOGA
Windshear detected
STARTING SYSTEM
STARTING SYSTEM
(1) The engine starting system consists of:
(a) Air Turbine Starter (ATS).
(b) Starter control valve (SCV).
(2) The pneumatic system provides bleed air to the ATS to rotate
the rotor speed and start the engine.
(3) The FADEC opens the Starter Control Valve (SCV), providing
bleed air from the APU, a ground source, or the opposite engine.
The Air Turbine Starter (ATS) is a turbine that accelerates the
engine to a self-sustaining
rpm level.
(4) The FADEC closes the SCV when the starter cutout speed is
reached.
27Ignition System
Ignition System
(1) The ignition system provides an electrical spark for fuel
combustion during ground/in-flight start attempts and for
automatic re-light.
(2) The FADEC energizes one igniter for on-ground engine starts
and both igniters for in-flight engine starts.
(3) When the ignition selector knob is placed on the OVRD
position, both igniters on each engine are energized. Igniters 1B that is correct
and 2B are connected to SPDA 2. In case of SPDA 2 failure, setting the selector knob to
OVRD energizes at least the igniter A.
How many portable O2 cylinders are installed in the cabin>
How many portable O2 cylinders are installed in the cabin>
2 cylinders (1 FWD, 1 AFT) with 2 masks per cylinder (4 total
Electric Hyd pumps auto turn on when?
Electric Hyd pumps auto turn on when?
Ground:
1. Flaps > 0
2. TL set to T/O, or
3. GS > 50 kts
Takeoff:
in TOGA, activated for 60 seconds to avoid abrupt hydraulic pressure variations in an event of engine failure
In-flight:
1. Eng or EDP failure
2. Flaps > 0
Parking Brake:
ACMP2 when on ground and Eng 1 is running and PB is
released
ACMP 2 when on ground during Eng 1 start and PB has been applied in last 6 mins
What are the 3 types of BITs?
What are the 3 types of BITs?
1. Continuous Tests
2. Fault-Initiated Tests
3. Initiated Tests
APU Bleed Priority
APU Bleed Priority
1. A/C on Ground
2. GS below 50 kts for more than 30 secs after touchdown
3. Packs off AND A/I not ALL or Single-Engine Taxi
4. APU normal, APU bleed & x-bleed buttons pushed in (auto)
What 3 things open or are energized when you move APU
Start Knob to ON?
What 3 things open or are energized when you move APU
Start Knob to ON?
1. APU FADEC is energized
2. APU EICAS messages are displayed
3. APU Fuel SOV opens
What is closed when the APU Emer. Stop Button is pressed?
What is closed when the APU Emer. Stop Button is pressed?
1. Denergizes APU FADEC
2. Closed APU Fuel SOV
3. Overrides APU Master Switch
What is the temp that the wax melts and deploys fire bottle in
lav?
What is the temp that the wax melts and deploys fire bottle in
lav?
78 ̊ C
