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What is the fundamental priority in any abnormal or emergency situation? start learning
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Maintain aircraft control and a safe flight path first; then diagnose, manage the problem, communicate and plan the safest outcome.
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Why should diagnosis not take priority over aircraft control? start learning
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An initially misunderstood failure is usually less dangerous than losing control of an otherwise flyable aircraft.
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What is the purpose of memory items in an emergency procedure? start learning
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To perform only the most time-critical actions that cannot safely wait for checklist reference; the procedure should then be continued or verified using the applicable checklist.
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Why should irreversible actions normally be positively identified and confirmed? start learning
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Shutting down or isolating the wrong functioning system can turn a manageable failure into a much more serious one.
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What is the practical difference between MAYDAY and PAN PAN? start learning
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MAYDAY indicates distress requiring immediate assistance; PAN PAN indicates urgency affecting safety but not requiring immediate assistance.
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How are the radiotelephony distress and urgency signals normally transmitted? start learning
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“MAYDAY” or “PAN PAN” is preferably spoken three times before the message.
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What information is most useful in an emergency transmission? start learning
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Aircraft identification, nature of emergency, intentions, position/level and any assistance required; communicate what time and workload permit.
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Why should pilots declare an emergency early when circumstances justify it? start learning
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It gives ATC and other services time to provide priority, airspace, weather, runway and emergency-response support.
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What is the key distinction between an engine failure and an engine fire/severe damage? start learning
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A simple loss of thrust may leave the engine structurally intact and potentially restartable; fire or severe damage requires isolation/shutdown according to the aircraft procedure and may make restart inappropriate.
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What are the immediate aerodynamic consequences of an engine failure on a twin-engine aircraft? start learning
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Loss of thrust plus asymmetric thrust/yaw; the aircraft also has less excess thrust and therefore degraded climb capability.
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Why is maintaining appropriate speed especially important after an engine failure? start learning
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Adequate speed preserves controllability and OEI climb capability while avoiding an accelerated approach toward stall.
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Why should engine identification be based on multiple indications rather than one cue? start learning
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Yaw, noise or a single abnormal indication can be misleading; several independent parameters reduce the risk of shutting down the wrong engine.
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Why is an engine relight decision type- and situation-dependent? start learning
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Restart feasibility depends on the nature of the failure, altitude, speed, damage indications and the certified relight envelope.
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What is the core take-off decision principle around V1? start learning
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Before V1 a recognised condition meeting reject criteria may lead to stopping; at or after V1 the normal strategy is to continue unless the aircraft is incapable of safe flight.
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Why is a high-speed rejected take-off itself a major emergency? start learning
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Stopping energy, tyre loads and brake temperatures can become extreme, with subsequent brake, tyre and fire hazards.
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After a high-energy rejected take-off, why is “aircraft stopped” not necessarily the end of the emergency? start learning
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Brake/tyre condition, fire, evacuation need and safe positioning must still be assessed.
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What is the first physiological priority after a significant depressurisation at altitude? start learning
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Protect yourself from hypoxia immediately by using the appropriate oxygen equipment before attempting prolonged diagnosis or communication.
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What is the difference between explosive, rapid and slow depressurisation? start learning
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They describe how quickly cabin pressure is lost; a slow leak may be particularly insidious because the initial cues can be subtle.
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Why is a slow depressurisation potentially more difficult to detect than a rapid one? start learning
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There may be no dramatic noise, fog or pressure sensation, allowing cabin altitude and hypoxia to develop unnoticed.
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How does time of useful consciousness change with altitude? start learning
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It decreases dramatically as altitude increases, making immediate oxygen use increasingly critical at high altitude.
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What is the main objective of an emergency descent following loss of pressurisation? start learning
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Reach an altitude where occupants can safely breathe while maintaining terrain clearance, aircraft limitations and control.
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Is 10,000 ft always the correct emergency-descent target altitude? start learning
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No. The target must also respect terrain, minimum safe altitudes and other operational constraints; higher terrain may require remaining above 10,000 ft.
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Why is speed management important during an emergency descent? start learning
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A high descent rate is desirable, but structural/speed limitations, controllability, turbulence and configuration limits must still be respected.
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Why must terrain be considered before or during an emergency descent? start learning
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A rapid descent toward a nominal safe breathing altitude can be catastrophic if terrain or minimum safe altitude is higher.
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Why do passenger oxygen systems provide only limited-duration oxygen? start learning
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They are intended primarily to protect occupants while the aircraft descends to a safe cabin altitude, not to sustain normal high-altitude cruise indefinitely.
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What is important to understand about chemical passenger oxygen generators? start learning
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Once activated they normally continue producing oxygen until depleted and become very hot; exact duration and system design are aircraft-specific.
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What is the first general priority in a smoke or fumes event? start learning
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Protect the crew’s ability to see, breathe and control the aircraft while identifying and isolating the source as quickly as practicable.
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Why is smoke in the cockpit particularly dangerous even before fire damages the aircraft? start learning
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It can impair vision, breathing, cognition, communication and the crew’s ability to operate controls.
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What is the role of crew protective breathing equipment (PBE)? start learning
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To protect the eyes and respiratory system from smoke/toxic fumes while allowing crew duties such as firefighting or source identification.
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What minimum PBE breathing-gas duration is required for applicable CAT aeroplanes under EASA rules? start learning
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What is the basic strategy for an in-flight fire? start learning
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Detect and locate if possible, remove/isolate its energy or fuel source, extinguish it, monitor for recurrence and land as soon as the situation requires.
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Why is removing the fire’s energy source important in addition to using an extinguisher? start learning
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Extinguishing agent may suppress flames temporarily, but continued electrical power, fuel or heat can cause reignition.
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Why is continued monitoring essential after a fire appears extinguished? start learning
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Residual heat or an unidentified source can cause hidden fire or reignition.
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Why is an uncontrolled in-flight fire generally treated as an immediate landing problem? start learning
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Fire can propagate rapidly and unpredictably, degrading structure, systems and habitability faster than many other failures.
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Why can indiscriminate ventilation during a smoke/fire event be hazardous? start learning
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Changing airflow can spread smoke or supply additional oxygen to a fire; smoke-removal actions therefore follow the aircraft procedure.
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What is thermal runaway in a lithium battery? start learning
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A self-heating chain reaction that can propagate between cells and cause repeated ignition, intense heat and toxic gases.
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Why is cooling important after extinguishing a lithium-battery fire? start learning
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Extinguishing visible flames may not stop thermal runaway; sustained cooling reduces temperature and the risk of propagation/reignition, following the applicable procedure.
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What is pilot incapacitation? start learning
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A physical or cognitive condition that prevents a crew member from performing required duties adequately; it may be obvious or subtle.
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Why can subtle incapacitation be especially hazardous? start learning
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The affected pilot may remain conscious and appear functional while making inappropriate decisions or failing to perform tasks.
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What are the broad priorities when one pilot becomes incapacitated? start learning
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Maintain control, assume the affected pilot’s duties, prevent interference with controls, obtain assistance, manage workload and plan an appropriate landing.
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What factors drive the decision to evacuate after landing or stopping? start learning
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Immediate threats such as fire, smoke, fuel leakage or structural danger must be weighed against the hazards created by evacuation itself.
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Why should evacuation not be initiated automatically after every abnormal landing? start learning
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Slides, traffic, engines, fire outside the aircraft and passenger injuries can make evacuation more dangerous than remaining on board.
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Once an emergency evacuation is ordered, what is the key objective? start learning
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Move occupants away from the aircraft rapidly through usable exits while avoiding external hazards.
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Why must unusable exits be actively blocked during an evacuation? start learning
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Opening or using an exit exposed to fire, water, obstacles or other hazards may cause more casualties.
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Why is cabin preparation important before a foreseeable emergency landing or ditching? start learning
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It secures occupants and cabin items, briefs passengers and crew, prepares exits/equipment and reduces injuries during impact and evacuation.
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Why should life-jackets normally not be inflated inside the aircraft? start learning
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An inflated jacket can restrict movement and trap the wearer inside a flooded or confined cabin.
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When do EASA CAT rules normally require individual life-jackets on landplanes? start learning
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When operating more than 50 NM from shore, or when the take-off/approach path over water creates a likelihood of ditching.
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When are life rafts required for a typical CAT aeroplane capable of continuing after the critical engine failure? start learning
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When operating over water beyond the lesser of 120 minutes at cruising speed or 400 NM from land suitable for an emergency landing.
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What is the purpose of an ELT? start learning
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To transmit a distress signal that helps search-and-rescue services detect and locate the aircraft or survivors.
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What is the practical difference between 406 MHz and 121.5 MHz in modern ELT use? start learning
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406 MHz provides satellite-based distress alerting and identification; 121.5 MHz is primarily used for local homing.
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What should determine survival priorities after a forced landing away from immediate rescue? start learning
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Immediate safety and injuries first, then shelter/environmental protection, signalling/location, water and only later food.
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Why is remaining near a survivable wreck often advantageous if the location is safe? start learning
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The aircraft is much easier for search-and-rescue services to detect than individual survivors.
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What is the first survival priority after ditching? start learning
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Get clear of immediate aircraft hazards, establish flotation/raft survival, account for people and maximise the chance of being located.
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Why is prevention of heat loss critical in cold-water survival? start learning
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Water removes body heat far faster than air, so hypothermia can become life-threatening well before dehydration or starvation.
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Why should survivors avoid drinking seawater? start learning
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Its salt concentration increases the body’s water requirement and accelerates dehydration.
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What is the purpose of survival signalling equipment? start learning
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To make survivors easier to detect visually, electronically or by radio and thereby reduce rescue time.
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