KC-46 FSI Checkride GK Flashcards
What does putting the Main Fuel Standpipe switch to BYPASS allow? How much fuel is left?
Allows the transfer of all main tank fuel to the center tank; presence of AP PUMP EICAS message indicates that fuel for approximately 15 minutes of engine operation remains in the center tank; normally, main tank drain is limited to 10,500 pounds remaining
What is the function of the EEC? What limits does it protect under normal operating conditions? In alternate mode?
Commands constant engine output for a given thrust lever position; EPR is primary parameter, whereas N1 is secondary; in Primary Control Mode, target EP for the current thrust lever position is computed as a ratio to the full thrust lever position; in alternate control mode, target N1 for current thrust lever position is computed as a ratio to the full throttle position; thrust limit protection is NOT available in the alternate operating mode; EEC provides N1 and N2 redline over speed protection in both modes, but neither mode provides overtemperature protection
What is on the left hydraulic system?
Flight controls, right yaw damper, left AR pump, AR boom (alt), CDS (alt), AAR receptacle (alt), RVS door (alt)
What is on the right hydraulic system?
Flight controls, normal brakes, pitch enhancement system, right AR pump, AR boom hoist
What is on the center hydraulic system?
Flight controls, left yaw damper, NWS, flaps and slats, alternate brakes, landing gear, hydraulic-driven generator, center AR pump, AR boom, CDS, AAR receptacle, RVS door
Why do we pressurize the right hydraulic system first and de-pressurize it last?
To prevent fluid transfer between systems
What is the function of the center Air Demand pump? The Pitch Enhancement System?
Provides additional hydraulic power either on demand or continuously for period of high system demand; provides a backup hydraulic power source for the electric motor-driven primary pumps; PES consists of a hydraulic motor in the right system driving a pump which uses trapped left trim system fluid to operate the stabilizer; PES is automatically active if both the left and center hydraulic systems are lost in-flight, but only electric trim is available at approximately 1/4 the normal rate, and alternate/automatic trim will be inoperative
What components does the battery bus power?
Wing anti-ice, aileron lockout, alternate stabilizer trim, center fuel pumps, fuel cross feed valves, left outboard and left inboard display units, left display control panel, left cursor control device, passenger address, flight and cabin interphone system, cabin altitude control panel and manual outflow valve control, inboard wheel antiskid, autobrakes, automatic speedbrake, independent disconnect
What components does the standby AC bus power?
Left MCDU, left VOR, left ADF
What components does the standby DC bus power?
Left engine anti-ice, EEC normal mode, rudder trim, left VHF comm system, left COM radio, ISFD power, leading edge slats primary extension, right outboard and right inboard display units
Does placing the APU switch to OFF completely stop operation of the APU?
Closes the bleed air valve (if open), initiates the APU cooling cycle, closes the APU fuel valve and inlet door to shut down the APU when the cooling cycle is complete, and resets auto shutdown fault logic
What is the difference between the taxi light and the nose gear landing light?
Taxi light is installed on the steerable portion of the landing gear; two nose gear lights are installed on the non-steerable portion of the landing gear and are optimized for approach
What are the differences between the ignition selector modes and when would you use them?
GND: opens start selector valve to supply starter air, arms selected igniter(s), and is magnetically held in this position until 50% N2 RPM
AUTO: releases to this position at 50% N2 RPM, closes the start valve and terminates ignition; selected igniter(s) operate continuously with the leading edge slats extended or engine anti-ice on
OFF: no ignition
CONT: selected igniter(s) operate continuously with no time limit
FLT: both igniters operate continuously regardless of ignition selector position, with no time limit
What happens to the ignition selector mode during engine start if you get a L ENG STARTER or R ENG STARTER EICAS message?
The selector for the affected engine goes to AUTO to prevent bleed air from entering the starter if the valve subsequently opens
What is the primary function of the Ram Air Turbine and when does it deploy?
Provides hydraulic power to the flight controls, boom, 3D camera door, and CDS system of the center hydraulic system; in flight, deploys automatically when both engines fail, or can be deployed manually by pushing the RAM AIR TURB switch; once deployed, cannot be stowed in-flight
When/Why does the L FWD fuel pump pressure light go out when the switch is not in the ON position?
APU fuel is supplied from the left fuel manifold; APU fuel can be provided by any AC fuel pump supplying fuel to the left fuel manifold or by the left main tank DC fuel pump; on the ground, with the APU selector ON and no AC power available, the DC pump runs automatically; with AC power available, the left forward AC fuel pump operates automatically, regardless of the fuel pump switch position, and the DC fuel pump turns off
When are you required to use engine/wing anti-ice? What are the limitations to its usage?
Engine anti-ice must be selected ON immediately after both engines are started and remain on during all ground operations when icing conditions exist or are anticipated, except when the temperature is less than -40 degrees C OAT; do not use engine anti-ice when OAT is greater than 10 degrees C; when engine anti-ice is required and the OAT is 3 degrees C or below, the takeoff must be preceded by a static engine run-up; the wing anti-ice system may be used as a de-icer or anti-icer in-flight ONLY (use WAI), but cannot be used when TAT is greater than 10 degrees C
What is the Main Deck Alerting System (MDAS)? How does your configuration affect it?
Provides aural and visual alerts to the ACMC and the MDCC, and is intended to alert crew members to return to their primary crew position and communicate with the pilots about their causing condition; indicated by MDAS ACTIVE memo on the EICAS
When can you change the configuration on the jet?
Only on the ground, with both engines shut down
What does putting the MAIN FUEL TRANSFER VALVES to CLOSED do? When must you do this?
Closes the secondary transfer valves, thus preventing automatic fuel transfer; as part of the normal procedure during descent, the PM (after all AAR is complete) will set both switches to CLOSED if either main tank quantity is 16,000 pounds or less; alternatively, in the RNDV checklist, pilots are directed to close the valves when offloading beyond 100 minutes from a suitable airport
How can you determine whether or not the cabin is “controllable” during the CABIN ALTITUDE checklist?
Unable to regain control of the outflow valve manually = uncontrollable
What is trim air and how does it help control the cabin temperature?
Hot trim air from the bleed air system added through 2 trim air valves to control temperature in each of the other compartments; cabin temperature controllers regulate pack output air temperature to satisfy temperature requirement of the compartment(s) requiring the coolest air
When do the autobrakes arm in RTO mode?
When set on the ground and ground speed is at or above 85 knots
What powers the alternate flaps? What powers the alternate gear?
Alternate flaps are powered by electric motors; alternate gear uses an electric motor to trip the locking mechanism for each gear, which allows the gear to free-fall to the down and locked position
What does VNAV SPD mean? VNAV PTH? VNAV ALT? What do you expect to see on a normal departure?
VNAV SPD: AFDS maintains the FMC speed displayed on the FMA and/or the MCDU CLIMB or DESCENT pages; during speed intervention, use the MCP IAS/MACH selector to manually set speed
VNAV PTH: maintains the FMC altitude or descent path using pitch commands; if there is a non-entered headwind, thrust may increase to maintain VNAV descent path; if the MCP altitude window is set to the current CRZ altitude as the airplane approaches the T/D, the MCDU scratch pad message “RESET MCP ALT” displays
VNAV ALT: when a conflict occurs between the VNAV profile and MCP altitude, the airplane levels and the pitch FMA changes to VNAV ALT, which maintains altitude
What do you expect to see on a normal departure when using VNAV? Descent? Approach?
Expect VNAV SPD or PTH on departure and normal descent; expect VNAV PTH on approach
How can the approach mode be disarmed after capture?
Disconnect the autopilot and turn both FD switches to OFF
What is the difference between an LNAV/VNAV approach and an IAN approach?
On an IAN approach, you are in APP mode and can set the final flap setting and MAP altitude at glidepath capture; during a VNAV approach, at 2 NM from the FAF and with ALT HOLD, VNAV PTH, or VNAV ALT annunciated, set the DA(H) or the MDA(H) on the MCP (to the nearest hundred feet and rounded down) on the MCP
During an autoland approach, what happens if the TO/GA switch is pressed, you are within 5 feet radio altitude for more than 2 seconds, and FLARE is annunciated on the FMAs?
The autopilot will remain in FLARE and the autothrottle go-around mode will be engaged
During an autoland approach, what happens if the aircraft is on the ground but has been below 5 feet radio altitude or less than 2 seconds when the TO/GA switch is pushed?
The autopilot GA pitch mode will engage but the autothrottle mode will remain in IDLE
What are the default modes of the flight direction when recycled in the air? On the ground?
On the ground, with no autopilot engaged and FD switches OFF: first FD switch moved to ON arms TO roll and pitch modes, while placing second to ON displays the FD steering indications on the second PFD
In-flight, with autopilot engaged and FD switches OFF: first FD switch moved to ON activates D in the selected autopilot mode
What does the hydraulic motor generator power? What powers it? When does it start to provide power?
Provides AC power to the left AC transfer bus, right AC transfer bus, standby AC bus (via left transfer bus), and the captain’s flight instrument transfer bus; provides DC power to the hot battery bus, battery bus, and standby bus; powered by the center hydraulic system and automatically activates when both the left and right main AC busses are unpowered
Why is a GEN DRIVE DISC irreversible?
Disconnects the generator from the engine, which requires maintenance action on the ground to reconnect the generator drive
What is DESCENT NOW?
VNAV starts an early descent and captures the idle flight path; when more than 50 NM from the T/D, perform a cruise descent rather than a descend now for descent to intermediate altitudes
