Misc Flashcards
How many Halon fire extinguishers
3
How many positive pressure relief valves and location?
2
forward of left wing
When does supernumerary oxygen activate (switch NORM)?
~ 14,000’
Wind limitation with cargo door open
65kts
How is emergency lighting powered
Remote batteries - charged by DC bus 4
15 mins duration
Can you operate one outflow valve in manual and one in auto?
Yes, they are independent
What does bank limit selector in AUTO command and depend on
varies between 15-25 degrees
depends on TAS, flap position, V2
Name some items on Main Standby bus
Essentially everything captain needs to fly airplane:
- LEFT EIU, CDU, ILS, VOR, ADC, XPDR, EFIS control
- Primary EICAS, RMI, STBY Instrument Lights
- STBY Ignition for all Engines (used if no AC power available)
- Various Flight Control Components
Name some items on Ground Handling Bus
What ground handlers would need to access aircraft without crew:
- Lower Cargo Doors
- Lower Cargo Handling Equipment
- Lower Cargo Lights
- Fuelling System’
- Aux HYD Pump 4
Max total number of occupants for Upper Deck
8?
If LE flaps are being driven by electric power what EICAS will display?
FLAPS PRIMARY
Is fuel temperature indicated on primary eicas?
Yes
What number vibration shows amber?
None - always shown in white
What are flight crew primary and secondary escape methods?
Primary - crew service door
Secondary - overhead hatch
What antenna is on the nose gear door?
G/S antenna
Where is the P6 panel?
Behind FO seat on the floor (old flight engineer area)
What does a guarded switch imply?
Do not touch unless there’s a (non-normal/supp) procedure for it
What does thrust limit protection prevent?
Overboost (N1) engine
Amber N1 line means?
Max N1 - TO thrust
above this line is overboost
Green N1 line means?
Reference N1 - THR REF
Pressing TOGA goes to this line
Red N1 line means?
Operating limit RPM
(117.5)
above this line is overspeed
Both Normal and Alternate EEC modes prevent overspeed
White N1 line means?
Command N1
B1F vs. B5F TO1/2 fixed derate percentage?
B1F - 5/15 %
B5F - 10/20 %
On contaminated runway what thrust setting cannot be used?
ATM (can used fixed derate)
Can you use fixed derate on contaminated runway?
Yes
Can you use ATM on contaminated runway?
No
AC Power for IRUs L, C, R
AC 3, 1, 2
IF AC Power not available, what powers IRUs, and for how long each?
APU Hot Battery Bus (DC Power)
IRU C powered for 5 mins
IRU L,R powered for 30 mins
How long does an IRU full alignment take?
10 mins
How long does an IRU fast alignment take?
30 secs
What do the source selectors select?
Info for the PFD/ND EFIS (Electronic Flight Instrument System)
Where is the Main Battery located?
E + E compartment
Where is the APU battery located?
Near APU by L5 door
Can the Main Deck Cargo Handling Bus be powered in flight?
No
Only powered by ext or APU - APU cannot produce elec in flight
Can an IDG power the Ground Handling Bus or Main Deck Cargo Handling Bus?
No - requires external or APU power
What is the priority for Ground Handling and Main Deck Cargo Handling Buses? APU or External power
External
What does the Ground Service Switch do?
Connects Ground Service Bus to the same power source that is powering the Ground Handling Bus
(Note this does NOT go THROUGH the Ground Handling Bus)
Can Ground Handling Bus and Left Sync Bus share the same power source?
Yes
Can Main Deck Cargo Handling Bus and Right Sync Bus share the same power source?
No
What is the primary source for the Main Batt and APU Batt Buses?
DC Bus 3
(powered either from AC BUS 3 through T/R or by DC Tie Bus through DCIR)
If you lost all generators (IDGs) in flight, what would you retain off the standby electric system?
Both STBY buses (Main STBY and APU STBY) now powered by Batteries through Hot Batt buses and STBY INVRs (30 mins power)
Buses and key systems retained:
Main STBY
- Left EIU, CDU, ADC, EFIS Control, Primary EICAS
- Various Flight Control Components
- Left XPDR, ILS, VOR
APU STBY
- Left PFD, ND, FMC
Main Batt
- Fuel and Xfeed valves, APU controller (alternate)
- Manual pressurization control, TE Flap control, IDG disconnect
- Lights - Dome, Storm (& select interior)
- CA’s interphone, Left RTP, VHF
APU Batt
- Engine start air control
- Engine & APU Fire/Overheat Detection Loops A & B
- FO Interphone, PA System
Main Hot Batt
- Engine fire extinguishers and Fire Sw Unlock
- Engine spar valves
- Lower Cargo and APU fire extinguishers
- APU Fuel SOV
APU Hot Batt
- IRU L, C, R DC Power
- L&R Outflow Valves
- APU Inlet Door
Where is the APU ground control unit?
Right body wheel well
What is the only control you do NOT have on APU ground control unit?
APU start
What things unlock Engine Fire Switch?
Fire warning
Fuel Control Switch - CUTOFF
Engine Fire Override Switch
What things unlock APU Fire Switch?
Fire warning
APU Fire Override Switch
What does pushing MAIN CARGO FIRE ARM Switch do?
- turns off 2 packs
- closes master trim air valve
- enables main deck fire suppression
- configures equipment cooling to closed loop
- turns off all airflow to main deck
- turns off all airflow and heat to LLCC
What does pushing FWD/AFT CARGO FIRE ARM Switch do?
- turns off 2 packs
- closes master trim air valve
- arms LLCC fire extinguishers
- configures equipment cooling to override mode
- turns off all airflow and heat to LLCC
What is the difference between pulling an engine START Switch with AUTOSTART ON/OFF
Autostart ON - ARMS start valve
Autostart OFF - OPENs start valve (light immediately on)
Both then open engine bleed air valve
Magenta line on N2 display?
Fuel-on indicator
Min N2 RPM to move Fuel Control switch to RUN during MANUAL engine start
When must CON IGNITION be on? (Atlas limitations)
Heavy rain
Severe turbulence
Volcanic Ash
Icing conditions
Standing water/slush on runway
(Auto provided when NAI on)
What are icing conditions?
10 degrees or less
Visible moisture
When is approach idle commanded?
CON IGNITION Switch ON
NAI ON
Flaps in landing position
Reverse thrust
How long is approach idle maintained until after touchdown (once minimum idle is selected)?
5 seconds
What is the reason for approach idle?
Higher thrust than minimum idle
Decreases acceleration time for GA
If CON IGNITION Switch fails, what can you use to command continuous ignition?
STBY IGNITION Selector to 1/2
Which switches will depressurize EDP?
Engine Hydraulic Pump Switch
Engine Fire Switch
Why are the hydraulic reservoirs pressurized?
- Prevent pump cavitation
- Ensure positive flow during high demand conditions
When do demand pumps operate (Hyd Demand Pump Selector - AUTO)?
- Engine pump output pressure low or fuel control switch in CUTOFF
- demand pumps 1 and 4 also when TE flaps in transit (ground), or in flight when extended past 1
- High demand - e.g flap transit, gear retraction
When do demand pumps 1 and 4 operate automatically (in addition to normal reasons)?
When TE flaps in transit (on ground)
Flaps extended past 1 (in flight) - continuous
What is the aux pump used for?
Ground handling operations - brake pressure
Which brake does Brake accumulator pressure indicator indicate?
Park brake
What does ‘FLAPS DRIVE’ EICAS indicate?
Flaps asymmetry
(or flap group failed to move in secondary mode)
What does ‘FLAPS CONTROL’ EICAS indicate?
All FCUs lost
What does ‘FLAPS PRIMARY’ EICAS indicate?
Primary control lost (secondary mode) for at least one flap group
What do FCUs provide?
Primary mode
Secondary mode
Indications and annunciations
During thrust reverse, what happens to flaps and what indication will you see?
Auto-retraction of inboard and midspan LE flaps (and then auto-extension when thrust out of reverse)
Flap position indicator reflect flaps in transit (green line changes to magenta and then back to green)
On ground, when would you see a ‘FUEL OVD CTR L,R’ EICAS?
CWT pump switches off and CWT > 7,700 kgs
How much pressure do override pumps put out in comparison to normal pumps?
Twice the amount
What valves close when pushing ENGINE BLEED Air Switch OFF
Engine bleed air valve
PRV
HP bleed valve
What will cause an engine bleed valve to auto-close?
- ground cart supply (to prevent reverse flow)
- bleed air over temp
- bleed air over pressure
- bleed source loss
- engine fire switch pulled
What causes PRV to close?
- failed closed
- any time start valve not closed (inc. failed open)
- HP valve failed open and NAI selected (too much pressure)
- eng bleed air valve closed
What fault will PRV stay open for for thrust reverser, but not for NAI?
HP valve failed open
How many PTCs are there?
2 - A and B
How many channels for each PTC?
3 - one per pack
What must be on for automatic PTC switching (either due to failure or as normal on landing)?
Trim air
With bleed valve closed, can NAI function? How?
Yes
IP valve as HP valve is closed
What items are required to be checked for exterior inspection?
- chocks in place
- landing gear door position
- flight control surfaces clear
- APU exhaust clear (unless running)
