Differences Flashcards
Where is APU located?
In tailcone
Is there a APU fire warning horn for ground operations?
No
APU operating altitude for electrical power
41000’
Max APU start altitude
37000’
ECS bleed available up to
25000’
Main engine start with use of the APU bleed available up to
21000’
Is the main engine start with use of APU bleeds a main engine start or APU limitation?
Main engine start limitation
Where is the APU intake door?
Right side of tail
What position is the APU door in for ground operations?
Fully open
What commands the APU door to open position on ground?
PWR FUEL switch
What position is APU door in in flight?
Variable position
What commands APU door open in flight?
Start/stop switch
What EICAS indications are there for APU door position?
OPEN, CLSD, or amber dashes
What provides air for oil cooler and APU compartment ventilation?
APU intake door
Does the APU exhaust tailpipe have any high temperature hazards?
No
If the APU door position is unknown, airspeed is restricted to what speed, or APU must remain in operation
220 kt
The APU uses fuel from where?
Left collector tank
What powers the flow of fuel to APU?
Dedicated DC electric APU pump
What allows the flow of fuel should the electrically operated APU pump fail?
Internal bypass valve opens to permit the APU high pressure pump to draw fuel for continuous operation
Do not have more than how many starts or start attempts in one hour for the APU?
Three
How long of a delay is required between APU cranking attempts?
2 min
APU starter cutout RPM (dependent on altitude)
46-60%
Forward nose landing gear doors are actuated how?
Mechanically
What hydraulic system is used during alternate nose gear lowering?
Hydraulic system 2
The main landing gear have what kind of construction?
Cantilever
A skid plate is installed where?
Just forward of the tailcone on the bottom of fuselage
The anti skid is tested when and how?
Automatically by built in test function before each flight.
What brand are the tires?
Michelin
Forward nose gear doors remain in what position with gear down
Open
Are there any hazards with activation of hydraulic pump 3 during ground ops?
No
Is there a mechanical unlock in the nose wheel well?
No
Hydraulic pressure from what system unlocks the over center mechanism
3
The nose landing light is installed where?
In the nose gear
When the manual landing gear release handle is pulled, hydraulic pressure from what system unlocks the over-center mechanism?
2
What is installed on each main gear?
Shimmy damper
The NLG has a spin down assembly, what is this made of and what does it do?
Three ply nylon straps to stop nose wheel rotation.
Tire speed for 700
182
Tire speed for 900
195
How many pair of segmented steel brakes on 700
4
What’s different about wear pin on 700?
Longer
What’s different about torque tube on 700?
Longer
What’s different about brake return mechanism on 700?
Longer
What’s different on torque tube and return mechanism on 900?
Longer
What’s different on 900 from 700 with brakes?
New quick disconnect fittings to prevent mismatch between 700/900.
How many pair of brakes on 900?
5 pair
What’s different about wear pin on 900?
Longer
The skid plate on the 900 consists of what?
Tail bumper strut
Wear pad
Strike indicator
The Attitude Direction Indicator (ADI) is powered by:
The BATT BUS
Where does the ADI receive its air data?
P3/S3
The ADI displays localizer and glide slope using data from:
NAV 1 or backup tuning unit
How long will the ALIGNING message be displayed on power up?
1 min
Mach transducers aren’t required for the stall system. Where does Mach data come from?
ADC’s
When TO is active in flight director it provides an optimized pitch reference based on what?
Look-up charts in the FCC
When TO is active in the flight director what spread is referenced?
Referenced on VR and V2 spread
What is different about pitch guidance on TO for the 900?
It represents an initial target for rotation only and does not guarantee that the recommended climb speed will be achieved/maintained under all conditions. QRH Vol 1, SUPP 4
What fire message is missing in the 700/900?
JETPIPE OVHT
What is missing from APU fire system?
No fire horn
What’s the new control unit called in the fire system?
FIDEEX
What new fire caution messages can be displayed on 700/900?
L (R) ENG SQB
Low pressure turbine overheat will give same indication as:
An engine core fire
Pylon overheat protection provided by:
Bleed air leak detection system
Cowl anti-ice leak detection system
What new APU fire message can be displayed?
APU SQB
How many smoke detectors in fwd cargo bay?
3
How many smoke detectors in aft cargo bay?
2
Warnings are presented when smoke is detected by at least ___ smoke detector in the the aft bay or any ___ in the fwd cargo bay
1, 2
True/false
The fwd and aft bays share two fire bottles
True
The small bottle in the cargo bays depletes:
Immediately
The large bottle in the cargo bay depletes:
Slowly (60 minutes to a suitable airport
What switchlight when pushed: Arms the extinguishing light Illuminates Bottlecswitchlight Closes the intake and exhaust shutoff valves Shuts off the aft cargo bay heater
AFT or FWD CARGO SMOKE PUSH
How do you test the fire system?
Hold test button for 2 seconds
To ensure a successful fire test, make sure the BATTERY Master switch has been on for a minimum of:
30 seconds
Unsuccessful fire test (failure of single loop or detector):
FIRE SYS FAULT in addition to FIRE SYS OK
Unsuccessful test (complete loss of redundancy)
Absence of FIRE SYS OK
Switchlight of failed system doesn’t illuminate
Applicable caution message displayed
What new status message indicates that two bridge wires on any one squib have failed or been fired (one shot left)
L(R) ENG SQUIB
The Wing A/ice system is controlled by:
Anti-ice Leak Detection Controller (AILC)
What prevents APU bleed air from supplying the anti-ice system?
ACSC (air conditioning system controller)
If the APU is supplying the bleed air manifold and coal or wing anti-ice is selected on, the APU LCV is:
Commanded closed and the engine bleed valves are commanded open.
Cowl and Wing anti icing are not disabled during:
Thrust reversing
Anti ice leak detection controller (AILC) has how many channels?
Dual
Anti ice leak detection controller (AILC) controls what?
The bleed air leak detection system
Anti ice leak detection controller (AILC) maintains leading edge temp by:
Modulating the Wing anti icing valves
During a WING OVHT warning, AILC automatically closes:
Both Wing anti ice valves
The AILC tests the Wing anti icing system when?
Continuously
DET TEST switchlight does what?
Tests both ICE detection and Air Data Sensor Heater Controllers (ADSHC) systems.
Advisory message ADS HEAT TEST OK
Do not perform the DET TEST until:
AC power is established
What determines wing anti ice temperature schedules?
Slat position
When slats are extended the leading edges are heated to a higher or lower temperature?
Higher
When wing anti ice is selected on the white N2 arc appear from what range?
0-77%
On the anti-ice synoptic page the icons indicate what valve position?
The actual valve position not switch selection.
Is the isolation ISOL valve considered an anti-icing component?
No
Selecting the WING A/I CROSS BLEED switch to left or right closes and opens which valves?
Closes opposite anti-ice valve
Opens the cross bleed valve
Is there a blow out plunger on the engine cowling?
No
Wiper speed limit
250
When must the pre-takeoff contamination check in the 700/900 be conducted?
Within 5 min of T/O
Conditions when a pre-takeoff contamination check can be performed
- HOT has been exceeded
- HOT isn’t valid due to changing wx
- +SN
- pre-takeoff check inconclusive
If the upper wing surface is free of contamination, is the horizontal stabilizer/elevator considered clean?
Yes
Use what row for pre-takeoff contamination check
Exit row. Use flashlight in aft row.
Do you have to observe “pilot out of flight deck” protocol when performing pre-takeoff contamination check?
Yes
An engine cowl anti-ice duct leak is detected by
A pressure transducer
What stage bleed air is used for wing anti-icing?
6th or 10th stage
