FAA Airline Transport Pilot (ATM) flashcards

Moving the CG aft reduces the horizontal tail's download requirement, decreasing longitudinal static stability and elevator control forces while reducing trim drag and slightly lowering stall speed.

• Aft CG reduces required tail download
• Reduces longitudinal static stability
• Lightens elevator control forces
• Reduces trim drag, improving cruise efficiency, but reduces stall/upset margin

Memory trick: Aft CG: less tail push, less push-back on the stick — light but less stable

Part 121 requires anyone performing dispatcher duties to hold an FAA aircraft dispatcher certificate issued under Part 65.

• Certificated under 14 CFR Part 65
• Required to jointly exercise operational control with the PIC
• Distinct from pilot certificates, which do not confer dispatcher authority

Memory trick: No dispatcher badge under Part 65, no release authority.

A CRM assertiveness protocol requiring a crewmember to restate a safety concern a second time if unacknowledged, and to take direct corrective action if the concern is still ignored.

• First callout states the concern clearly
• Second callout is more assertive if no response
• Empowers taking control or corrective action if still unaddressed
• Designed to break down excessive authority gradients

Memory trick: Say it twice, then act — safety can't wait for a third try

James Reason's model of accident causation depicting organizational defenses as layers with holes (weaknesses); an accident occurs when holes across multiple layers align.

• Layers include organizational influences, supervision, preconditions, and unsafe acts
• Holes represent latent and active failures
• Emphasizes that accidents rarely have a single cause

Memory trick: Holes in the cheese must line up perfectly for disaster to slip through.

CG position expressed as a percentage of the mean aerodynamic chord, measured from the leading edge of MAC (LEMAC).

• %MAC = (CG station − LEMAC)/MAC length × 100
• Used to check CG against certified forward/aft limits
• MAC length and LEMAC vary by aircraft type

Memory trick: Subtract LEMAC, divide by chord, multiply by 100 — that's your %MAC score.

To act as PIC carrying passengers, a pilot must have made 3 takeoffs and landings in the preceding 90 days in an aircraft of the same category and class (and type if required).

• 90-day rolling window
• Landings may be day or night
• Type rating required aircraft also needs matching type experience

Memory trick: Three landings, ninety days, keeps the passengers safe always.

The distance between isobars on a surface analysis chart indicates the strength of the pressure gradient force, which directly relates to wind speed.

• Closely spaced isobars = steep gradient = strong winds
• Widely spaced isobars = weak gradient = light winds
• Isobars connect points of equal sea-level pressure

Memory trick: Tight isobars = tight rubber bands stretched hard, snapping wind fast.

Total Air Temperature (TAT) is higher than Static Air Temperature (SAT) due to adiabatic compression heating of air at the probe as speed increases, approximated by ΔT(K) ≈ SAT(K) × 0.2 × M².

• TAT sensed by probe, SAT is true ambient temp
• Ram rise increases with the square of Mach number
• Used to correct for engine performance and TAS calculations

Memory trick: Faster air, hotter probe — squeeze the air, feel the heat

The tendency to seek out, interpret, and remember information in a way that confirms preexisting beliefs while disregarding contradictory evidence.

• Can cause pilots to miss disconfirming warning indications
• Often reinforced under stress or time pressure
• Countered by deliberately seeking disconfirming data and cross-checking instruments

Memory trick: Confirmation bias hears only what it wants to hear.

A cool, downslope wind caused by radiational cooling of air along elevated terrain, which becomes dense and flows downhill into valleys, typically at night.

• Occurs under clear, calm nighttime conditions
• Air cools and becomes denser along slopes
• Dissipates after sunrise as heating begins

Memory trick: Katabatic = 'cat crawling downhill at night' — cold air creeping down slopes.

An indicator in a Terminal Aerodrome Forecast marking a rapid, significant change in conditions beginning at a specific time, replacing prior forecast conditions.

• FM is followed by day/hour/minute (DDHHMM) in UTC
• Change occurs in about an hour or less
• Represents a full replacement, not a temporary or probable condition

Memory trick: FM = 'From now on, things change fast.'

Transportation of a crewmember as a passenger or non-operating crewmember, which counts toward the flight duty period but not as flight time.

• Defined in 117.3
• Counted in FDP when immediately before/during an FDP
• Never counted as flight time

Memory trick: 'Deadhead adds to the day, but never to the pay-hours of flight.'

Regulation specifying where ADS-B Out equipment must be installed and operating for flight.

• Required in Class A, B, and C airspace
• Required within 30 NM of Class B primary airport (Mode C veil) up to 10,000 ft MSL
• Required above 10,000 ft MSL over the 48 states, excluding below 2,500 ft AGL

Memory trick: Mode C veil = 30-mile force field around the Class B fortress.

14 CFR 121.617 allows omission of a destination alternate when forecast weather around ETA meets specified ceiling/visibility minimums.

• Window: 1 hour before to 1 hour after ETA
• Minimums: ceiling ≥2,000 ft, visibility ≥3 statute miles
• Applies when destination has at least one operational instrument approach

Memory trick: "2,000 and 3 — no alternate for me."

A structured assertive communication technique in which a crew member states an observation, expresses concern, offers a recommendation, and seeks explicit acknowledgment to resolve a potential safety issue.

• Helps overcome authority gradient barriers to speaking up
• Follows a structured escalation pattern if initial concern is not addressed
• A core CRM skill for junior crew members raising safety concerns

Memory trick: Observe, worry, suggest, confirm—speak up before it's too late.

A recommended reduced speed used in turbulence that provides balanced margins from both stall buffet and high-speed buffet/overspeed, minimizing structural gust loads.

• Typically below normal cruise Mach/speed
• Balances low-speed and high-speed buffet margins
• Reduces risk of structural overstress from gust load factors

Memory trick: Split the difference between stall and screech (overspeed) to survive the bumps.

An en route dispatch release amendment requires mutual concurrence between the pilot in command and the dispatcher.

• Reflects shared operational control under Part 121
• Applies to en route changes such as alternate diversions
• Both parties must agree before the amendment is effective

Memory trick: Two signatures, one release—dispatcher and captain must shake hands.

A flightcrew member is acclimated to a theater if in that theater 72+ hours, or has had 36 consecutive hours free of duty there within the previous 168 hours.

• Defined in 117.3
• Determines which time zone's clock is used for FDP limits
• Affects Table B lookup for max FDP

Memory trick: '72 or 36' — stay 72 hours or grab a 36-hour break to call it home.

A ground-based network of anemometers around an airport that detects wind shear by comparing wind vector differences between a centerfield sensor and perimeter sensors, alerting ATC and pilots.

• Uses 5 to 32 wind sensors depending on airport configuration
• Compares centerfield wind vector to remote sensor sites
• Complements airborne and Terminal Doppler Weather Radar (TDWR) wind shear detection

Memory trick: LLWAS = a ring of wind gauges 'listening' for mismatched winds around the field

14 CFR 61.59 prohibits fraudulent or intentionally false statements, entries, or reproductions related to airman certificates and records, subjecting violators to suspension or revocation of any certificate held.

• Applies to logbooks, applications, and required records
• Basis for suspension or revocation of ANY certificate held
• Covers alteration/reproduction of certificates too

Memory trick: One false line in the logbook can erase every certificate you own.

A forward center of gravity increases longitudinal stability and stall speed but requires greater elevator deflection and more trim drag.

• Increases stick force stability
• Raises stall speed slightly
• Requires more nose-up elevator for rotation and flare

Memory trick: 'Forward CG = Firm and Fast (stall speed up)'

Specific range (NAM per lb of fuel) is maximized near the speed for maximum lift-to-drag ratio; jets typically cruise slightly faster than this at 'Long-Range Cruise' speed for a small time benefit at minimal fuel penalty.

• Specific range = nautical air miles flown per pound of fuel burned.
• Maximum specific range occurs near max L/D speed.
• Long-Range Cruise (LRC) speed trades ~1% range loss for faster cruise speed.
• Weight, altitude, and temperature all affect the optimum speed schedule.

Memory trick: Fly near best L/D, then nudge faster for 'Long Range Cruise' bonus speed.

Increasing load factor (e.g., in a turn) raises the required lift coefficient, causing high-speed buffet onset to occur at a lower Mach number and reducing buffet margin.

• Buffet margin = buffet onset Mach minus cruise Mach
• Higher g-loading reduces high-speed buffet margin
• Steep turns at high altitude risk buffet onset near Mmo

Memory trick: More g's squeeze the buffet margin tighter

As fuel burn reduces gross weight during cruise, the optimum altitude for maximum specific range increases, prompting crews to request step climbs to progressively higher flight levels.

• Optimum altitude rises as weight decreases
• Based on maintaining optimum lift coefficient/Mach
• ATC step climbs implement this in practice
• Improves fuel efficiency over the flight

Memory trick: Lighter jet = higher home — climb as you burn fuel

No person may serve as a pilot in Part 121 operations after reaching age 65.

• Absolute age limit, no exceptions mid-duty day
• Applies to both PIC and SIC
• Distinct from ATP medical currency requirements

Memory trick: Turn 65, ground the wings that same day.

A web-based interactive tool providing graphical aviation weather forecasts including ceiling, visibility, wind, icing, and turbulence across the CONUS.

• Replaced the textual Area Forecast (FA) for CONUS
• 3-hour increments out to 15 hours, 6-hour out to 48 hours
• Covers ceiling/visibility, clouds, precipitation, turbulence, icing, wind

Memory trick: GFA = 'Graphic Flight Atlas' showing the whole sky picture in time slices.

Published climb gradients (in feet per nautical mile) must be converted to a required climb rate (feet per minute) based on groundspeed to verify aircraft performance during departure or missed approach.

• Formula: Climb rate (fpm) = Gradient (ft/NM) × Groundspeed (kt) / 60
• Standard missed approach gradient is 200 ft/NM unless otherwise published
• Higher published gradients indicate obstacles requiring steeper climbs
• Groundspeed, not airspeed, must be used in the calculation

Memory trick: 'Gradient times Groundspeed, divide by 60 — that's your climb, no fuss.'

The total distance required to accelerate to V1 and then bring the airplane to a complete stop, factoring runway surface condition, weight, wind, and altitude.

• Contaminated runways (water, ice, snow) increase ASD
• Braking effectiveness depends on tire-runway friction
• ASD must not exceed the accelerate-stop distance available (ASDA)

Memory trick: 'Slick runway, slow stop (longer stop distance)'

Prohibits flight crewmembers from performing nonessential duties during critical phases of flight, including all operations below 10,000 feet except cruise.

• Applies during taxi, takeoff, landing, and below 10,000 feet
• Excludes cruise flight above 10,000 feet
• Prevents distractions during high-workload phases

Memory trick: Below 10,000 feet, zip the lips unless it's safety-critical.

The runway length at which accelerate-stop distance equals accelerate-go distance for a given V1, optimizing the takeoff decision speed for the available runway.

• ASD increases and AGD decreases as V1 increases
• ASD decreases and AGD increases as V1 decreases
• Balanced field length is the V1 where the two distances are equal
• Not all runways require a fully balanced V1; some allow a range of V1 values

Memory trick: V1 is a seesaw: push it one way, one distance goes up, the other goes down

A framework used in CRM training that describes how flight crews manage external threats and internal errors to avoid undesired aircraft states.

• Threats: external factors like weather, terrain, ATC, or traffic
• Errors: crew actions or inactions that reduce safety margins
• Undesired Aircraft States: result of mismanaged threats/errors (e.g., unstable approach)
• Countermeasures: crew behaviors like briefings, checklists, cross-checks that mitigate threats/errors

Memory trick: TEM: Threats come first, then Errors, then Undesired states if unmanaged

Requires PICs of turbojet or certain large aircraft outside 121/125/135 programs to pass a proficiency check every 12 calendar months.

• Applies to turbojet-powered airplanes and large aircraft (>12,500 lbs) generally
• 12-calendar-month recurrence
• Satisfied automatically by completing an equivalent 121/125/135 check

Memory trick: 'Fifty-eight, every year straight' — 61.58 is a strict annual check.

TCAS II issues Traffic Advisories (TA) to alert crews of nearby traffic and Resolution Advisories (RA) that command specific vertical maneuvers to avoid collision.

• TA: alerts crew, prompts visual scanning, no maneuver required
• RA: commands a specific climb/descend/maintain vertical rate maneuver
• RA maneuvers take priority over ATC instructions
• Crew must promptly and smoothly comply with an RA

Memory trick: 'TA = Talk and watch, RA = React'

V1 is the maximum speed at which a rejected takeoff can be initiated and stopped within the accelerate-stop distance; above V1, the takeoff must continue to a safe climb speed even with an engine failure.

• Below V1: reject the takeoff on engine failure or major malfunction
• At or above V1: continue the takeoff to V2 (takeoff safety speed)
• Balanced field length equates accelerate-go and accelerate-stop distances
• V1 is calculated based on weight, runway length, wind, and density altitude

Memory trick: 'Before V1, Bail; After V1, Fly'

A nose-down pitching tendency caused by aft movement of the center of pressure as shock waves form on the wing at high subsonic speeds.

• Occurs as aircraft approaches Mmo
• Center of pressure shifts aft due to shock wave location
• Mach trim systems automatically compensate for the tendency

Memory trick: Tuck under: nose dives as the shock slides aft

Minimum control speed in the air with the critical engine inoperative is affected by CG location, gear, and flap position.

• Aft CG increases VMCA
• Forward CG decreases VMCA
• Gear down and takeoff flaps decrease VMCA

Memory trick: Aft CG = short arm = need more speed to swing the rudder.

The outflow valve controls the rate of pressurized air leaving the cabin, thereby regulating cabin altitude and rate of change, under command of the pressurization controller.

• Modulated automatically by the pressurization system
• Closes to increase cabin pressure, opens to decrease it
• Distinct from the safety/positive & negative pressure relief valves

Memory trick: Outflow valve is the cabin's exhaust pipe

Reduced Vertical Separation Minimum (RVSM) airspace, from FL290 to FL410, allows 1,000 feet vertical separation between approved aircraft, doubling available flight levels and improving traffic flow.

• Applies between FL290 and FL410
• Requires special aircraft and crew authorization
• Vertical separation reduced from 2,000 ft to 1,000 ft

Memory trick: RVSM cuts the gap in half: 2,000 becomes 1,000

A period of impaired alertness, cognitive performance, and grogginess immediately following awakening, especially after being roused abruptly from deep sleep.

• Lasts typically 15-30 minutes but can extend longer
• Worse when awakened from deep sleep stages
• Common risk for relief/augmented crew after in-flight rest
• Mitigated by allowing adequate wake-up buffer time before duties

Memory trick: Groggy on waking? That's sleep inertia, not circadian low

The maximum weight per square foot a cargo compartment floor structure can bear, independent of the compartment's total weight limit.

• Floor loading (psf) = load weight ÷ contact area
• Must not exceed structural floor loading limit
• Load-spreading devices (dunnage/pallets) increase contact area to reduce psf

Memory trick: Spread the load like peanut butter — thinner spread means less pressure per spot.

In a level, coordinated turn, load factor n = 1/cos(bank angle); stall speed increases by a factor of √n compared to level, wings-level flight.

• At 45° bank, n ≈ 1.41, stall speed increases ~19%.
• At 60° bank, n = 2.0, stall speed increases by √2 (~41%).
• At 30° bank, n ≈ 1.15, a smaller stall speed increase.
• Steep turns near approach speeds can reduce stall margin significantly.

Memory trick: Steeper bank, heavier 'G', higher stall speed — 60° doubles your load.

Federal aviation regulation 91.117 establishes maximum indicated airspeeds in various airspace to enhance see-and-avoid safety and traffic flow.

• 250 KIAS max below 10,000 ft MSL
• 200 KIAS max below 2,500 ft AGL within 4 NM of Class B primary airport
• ATC may authorize higher speeds when necessary

Memory trick: Ten grand, two-fifty — keep it steady.

14 CFR 121.542/135.100 prohibits flight crewmembers from performing non-safety-related duties or engaging in nonessential conversation during critical phases of flight.

• Critical phases include taxi, takeoff, landing, and all flight below 10,000 ft (except cruise)
• Nonessential activities like eating, reading, or casual talk are prohibited
• Intended to reduce distraction during high-workload phases
• Applies to all required flight crewmembers

Memory trick: Below 10,000 feet, zip the lip unless it's about flying

Wingtip vortex intensity increases with aircraft weight, clean configuration, and slow airspeed (high angle of attack).

• Heavy + Clean + Slow (HCS) produces strongest wake vortices
• Vortices sink and can persist for several minutes
• Greatest hazard occurs during takeoff and landing phases

Memory trick: Heavy, Clean, Slow = HCS = 'Hazard Creates Storms' of vortices

A structured, non-punitive post-event review focused on identifying facts, decision rationale, and lessons learned to improve future crew and system performance.

• Should be blame-free to encourage open discussion
• Feeds safety reporting and continuous improvement systems
• Complements just culture principles

Memory trick: A good debrief is a mirror for growth, not a courtroom for blame.

The wind group in a METAR reports direction (true north), sustained speed, and gusts when applicable, in the format dddffGfgKT.

• Direction is in degrees true, speed in knots
• 'G' precedes gust value when gusts exceed sustained speed by 10+ kt
• 'VRB' is used when direction is variable and speed is 6 kt or less

Memory trick: Direction-Speed-Gust: 'DSG' tells you the wind story.

To carry passengers at night, a pilot needs 3 full-stop takeoffs and landings in the preceding 90 days in the same category/class/type, done between 1 hour after sunset and 1 hour before sunrise.

• Window is 1 hr after sunset to 1 hr before sunrise (narrower than 'night')
• Landings must be to a full stop
• Must be same category, class, and type if type rating required

Memory trick: 'Sunset plus one, sunrise minus one' bookends the night-currency clock.

A layer of the atmosphere in which temperature increases with height, creating strong atmospheric stability.

• Common on clear, calm nights (radiation inversion)
• Traps fog, smoke, and haze near the surface
• Associated with smooth air but poor visibility

Memory trick: Inversion = upside-down temperature, trapping the smog below

The maximum weight of the airplane and its payload without usable fuel, limited to control wing bending moments.

• MZFW caps payload before fuel is added
• Max fuel = MTOW − MZFW
• Max payload = MZFW − OEW

Memory trick: Zero-fuel first, then top off the tanks up to max takeoff weight.

A narrow band of strong upper-level winds near the tropopause, formed by strong temperature gradients between air masses; associated with clear air turbulence from wind shear.

• Typically found 30,000-40,000 ft altitude
• Wind speeds can exceed 100 knots in the core
• CAT is strongest on the low-pressure (poleward) side of the jet core

Memory trick: Jet stream = the sky's 'highway,' bumpy where lanes of air merge.

The amount of time a person can perform flying duties effectively after exposure to an oxygen-poor environment, which decreases sharply with increasing altitude.

• FL250: TUC approximately 3-5 minutes
• FL350: TUC approximately 30-60 seconds
• FL410: TUC approximately 9-12 seconds
• TUC is shorter with rapid decompression than gradual decompression at the same altitude

Memory trick: The higher you go, the faster the clock runs out on your brain's oxygen

A standardized 4-level scale (Light, Moderate, Severe, Extreme) pilots use in PIREPs to describe turbulence intensity based on aircraft response and occupant effects.

• Severe: momentary loss of control, violent forcing against belts
• Extreme: aircraft practically impossible to control, structural damage possible
• Reports help other pilots and dispatch avoid hazardous areas

Memory trick: Light tickle, Moderate shake, Severe slam, Extreme chaos

Ice contamination on the horizontal stabilizer can cause it to stall, especially when flaps are extended (increasing downwash), resulting in an abrupt nose-down pitch and reduced elevator control.

• Increasing flap deflection increases tail angle of attack/downwash
• Ice-contaminated tail can stall before the wing does
• Recovery technique differs from wing stall (may involve retracting flaps, not adding them)

Memory trick: Icy tail, sudden nose-fall

Jet streams are narrow high-altitude wind bands (often 100+ knots) that add to or subtract from TAS to produce groundspeed, greatly affecting flight time and fuel planning.

• Jet stream winds can exceed 150-200 knots
• Groundspeed = TAS ± wind component
• Eastbound flights often seek jet stream tailwinds; westbound flights avoid them

Memory trick: Ride the river of wind eastbound

Legacy flight time limitations for domestic Part 121 operations (still applicable to all-cargo operators not opting into Part 117), capping flight time at 1,000 hours per calendar year.

• Part 117 does not apply to all-cargo ops unless voluntarily adopted
• 121.471 also limits 30 hrs/7 days and 100 hrs/calendar month
• 1,000-hour annual cap is a key exam fact

Memory trick: 'A grand a year for cargo gear' — 1,000 hours annual cap under 121.471.

A small-scale, intense downdraft that spreads out upon reaching the surface, producing a rapid headwind-to-tailwind shift and severe sink rate, extremely hazardous during takeoff and landing.

• Can produce airspeed changes of 30+ knots in seconds
• Associated with virga and thunderstorms, often unseen at the surface
• Escape maneuver: max thrust, maintain pitch, do not change configuration

Memory trick: Microburst = 'mini nuke' of downdraft — headwind then tailwind then you drop.

An aft CG reduces the tail-down force needed for trim, lowering the effective wing loading and resulting in a lower stall speed compared to a forward CG, though aft CG reduces stall recovery margin.

• Forward CG requires more tail download, increasing effective weight and stall speed
• Aft CG reduces tail download, decreasing stall speed
• Aft CG reduces static longitudinal stability and stall recovery margin

Memory trick: Aft CG: lighter tail load, lower stall speed

When a TCAS RA and ATC instruction conflict, the RA takes priority because it reflects real-time, localized traffic conflict data.

• Follow the RA immediately
• Do not maneuver contrary to the RA
• Notify ATC of the deviation as soon as practicable

Memory trick: RA rules over ATC — 'Robot beats Radio' in a conflict.

A reduced-thrust takeoff technique that uses a fictitious higher temperature to compute lower thrust settings, valid when actual weight is below the performance-limited maximum.

• Reduces engine wear and extends engine life
• Only usable when weight margin exists below max takeoff weight
• All performance and obstacle clearance requirements must still be met
• Not permitted on contaminated or slippery runways

Memory trick: Pretend it's hotter outside to save your engines' insides

A vestibular illusion in which a pilot fails to perceive a slow, prolonged turn and, upon leveling the wings, feels falsely banked, creating an urge to re-enter the turn.

• Caused by fluid settling in semicircular canals during gradual turns
• Most common vestibular illusion in instrument flying
• Pilot may physically lean to 'correct' the false sensation
• Trust instruments, not bodily sensations, to overcome it

Memory trick: Slow turn goes unnoticed, then you 'lean' the wrong way