Airplane Emergency Landing: Meaning, Types, And Examples

An airplane emergency landing is an unscheduled landing that a flight crew makes in response to a situation that threatens the safety of the aircraft, passengers, or crew. Aviation safety authority SKYbrary defines it as “a landing of an aircraft in a state of emergency” that does not necessarily occur on a runway — it can take place in fields, on water surfaces, or even on roadways. Pilots, airlines, and aviation regulators across the world use the term as an umbrella to describe several distinct event types, each governed by its own protocols and involving different levels of urgency.

Emergency landings happen in every category of aviation — commercial, military, and general aviation — and they can be triggered by anything from a failing engine to a medical crisis on board. The Federal Aviation Administration (FAA) requires pilots to declare an emergency through specific radio calls — either “MAYDAY” for a life-threatening distress condition or “PAN-PAN” for an urgent but not immediately deadly situation — before the standard emergency response infrastructure swings into action. Once declared, the flight receives absolute priority over all other traffic, rescue and firefighting services (RFFS) are deployed to their positions, and departures at the destination aerodrome may be halted.

What Is An Airplane Emergency Landing And Why It Matters

An emergency landing is fundamentally different from a crash. AN Aviation explains that it is “a controlled maneuver where an aircraft returns to the ground or a surface (water) in response to a crisis that threatens the safety of the flight.” The objective is to bring the aircraft down with maximum control and minimum energy dissipation. The flight crew makes a deliberate, proactive decision to land early rather than continue the scheduled route.

The distinction matters because it shapes public understanding and, more importantly, policy. The FAA’s Airplane Flying Handbook defines a crash landing specifically as one “in which an aircraft is damaged beyond repair.” An emergency landing where the aircraft remains structurally intact should not carry that label. Recognizing the difference helps investigators apply the right category to each event, which in turn determines the type of safety study triggered and the recommendations that follow.

Statistically, air travel remains one of the safest modes of transportation. Airliners frequently make emergency landings, and the overwhelming majority of them are uneventful. Pilots train for these scenarios extensively, airlines have detailed contingency plans in place, and aircraft are engineered with redundant systems designed to keep the crew in control during an emergency.

The MAYDAY And PAN-PAN Calls

Before any emergency landing takes place, the flight crew must communicate the situation to air traffic control (ATC). Aviation uses two internationally standardized distress signals for this purpose, each corresponding to a different level of urgency.

MAYDAY — derived from the French m’aidez, meaning “help me” — is the global signal for a distress condition. Per FAA guidance, a pilot repeats it three times consecutively. It indicates an immediate threat to life or the continued viability of the aircraft — such as an engine fire, total power loss, or structural failure. A MAYDAY call commands radio silence on the frequency in use and gives the flight absolute priority over all other traffic.

PAN-PAN — an acronym commonly expanded as “possible assistance needed” — is the urgency signal. Simple Flying notes that it covers situations where “the flight is safe for the moment but requires a change in plans” — such as a medical issue in the cabin, a non-critical navigation system failure, or a fuel imbalance that calls for a diversion. PAN-PAN alerts ground crews that a precautionary landing is likely, but it does not trigger the full-scale emergency response that MAYDAY does.

Both calls are made on the frequency currently in use, or alternatively on 121.5 MHz — the international VHF guard frequency monitored by most ATC facilities, military aircraft, and flight service stations. Once the urgent situation is resolved, the crew is expected to broadcast a follow-up to all stations, formally cancelling the urgency signal.

Five Types of Airplane Emergency Landings

Aviation authorities recognize several distinct types of emergency landings. SKYbrary classifies them as follows: forced landing, precautionary landing, ditching, belly landing, and crash landing. Each type carries a different fatality risk, demands different pilot decision-making, and may or may not involve a formal emergency declaration.

Forced Landing: When The Aircraft Has No Choice

A forced landing occurs when the aircraft must land immediately, regardless of the terrain below. SKYbrary defines it as “a situation where an aircraft unavoidably needs to land, usually regardless of terrain.” The most common trigger is engine failure — either a single-engine failure in a single-engine aircraft or total power loss across all engines. Fuel exhaustion is another frequent cause, as is extensive structural damage.

The AOPA notes that the fatality rate for forced landings is approximately 10 percent — more than 1,600 times the rate for precautionary landings. This makes prompt recognition critical: a pilot who identifies a deteriorating situation early and transitions from a forced landing scenario to a precautionary one dramatically improves the odds for everyone on board.

During a forced landing with no engine power, a fixed-wing aircraft glides while a helicopter autorotates — trading altitude for airspeed to maintain control. AN Aviation explains that when selecting an off-airport landing site, pilots apply “The Five S’s”: Surface, Size, Shape, Slope, and Surroundings. They look for flat, firm ground free of obstacles like power lines and trees. The aircraft’s glide ratio becomes the most critical variable: an aircraft with a lift-to-drag ratio of 10:1 can cover 10,000 feet of horizontal distance for every 1,000 feet of altitude lost.

Precautionary Landing: Choosing Safety Before It Becomes Urgent

A precautionary landing is made when further flight is possible but inadvisable. SKYbrary defines it as “a situation where further flight is possible but inadvisable, i.e. in the judgement of flight crew, a hazard exists with continued flight.” Common triggers include navigation system degradation, gradual engine performance loss, deteriorating weather, or fuel shortage that has not yet become critical.

The key distinction from a forced landing is that the pilot still has options. AOPA data shows the fatality rate for precautionary landings is just 0.06 percent — far lower than for forced landings. Pilots who recognize a developing problem and elect to land early save lives. Not all precautionary landings are classified as emergency landings; some occur without a formal emergency declaration and are handled as local standby procedures rather than full emergency activations.

Precautionary landings are most commonly made at an airport. In some cases, landing in a field is safer than attempting to reach an airport, especially if the hazard is likely to worsen with time. Simple Flying notes that depending on the hazard severity, either a full emergency or a local standby procedure may be activated at the receiving aerodrome.

Ditching: Emergency Landing On Water

Ditching is defined as a forced or precautionary landing on water. Simple Flying clarifies that ditching applies only to land planes — water landings by seaplanes or amphibious aircraft, which are designed for such operations, are not classified as ditching. A true ditching involves a land-based aircraft touching down on a water surface under emergency conditions.

AOPA data puts the fatality rate for ditchings at approximately 20 percent — the highest among the main emergency landing types. Outcomes depend heavily on sea conditions, wind, water currents, aircraft type, and crew skill. Passengers must don life vests before the aircraft touches down, and the evacuation window is narrow because a ditched aircraft may sink within minutes if not specifically designed for extended water flotation.

The FAA guidance on ditching identifies three primary factors that determine success: sea conditions and wind, the type of aircraft, and the skill and technique of the pilot. For aircraft landing on solid surfaces, pilots generally extend the landing gear to absorb impact energy; for water landings, retracting the gear is usually recommended to achieve a smoother touchdown on the aft fuselage.

Belly Landing: When The Gear Does Not Come Down

A belly landing, also known as a gear-up landing, occurs when an aircraft touches down without its landing gear fully extended. It is caused either by mechanical failure — hydraulic or electrical faults preventing gear extension or locking — or, in rarer cases, by pilot error, specifically forgetting to lower the gear before touchdown.

Belly landings carry the risk of fire, fuselage damage, and loss of directional control. Flight Safety Australia, citing data from Australia’s ATSB covering 2003–2023, found 321 gear-up landings across both general and commercial aviation — more than one per month. Of those, 314 involved no injuries, 7 involved minor injuries, and none resulted in serious or fatal injuries. This data shows that while the event looks alarming, a carefully executed belly landing on a prepared runway with rescue services standing by is statistically survivable.

Key features that affect belly landing safety include:

• Fuselage design: Aircraft with reinforced underside structures better absorb the impact.
• Fuel state: Dumping or burning off excess fuel before landing reduces fire risk.
• Emergency services: Ground rescue and fire crews must be in position before touchdown.
• Runway surface: A prepared runway is far safer than off-airport terrain.
• Pilot control: Maintaining wings-level attitude and correct approach speed is essential.

Simple Flying’s review of notable gear-up landings highlights the 2011 case of LOT Polish Airlines Flight 16, a Boeing 767, which landed at Warsaw without any gear deployed after a hydraulic failure prevented extension. The captain, a veteran with 20 years of experience on the 767, successfully completed the landing with no injuries to anyone on board.

Crash Landing: When Structural Damage Is Unavoidable

A crash landing is the most severe category. This is defined as a landing in which the aircraft sustains damage beyond repair. Crash landings may result from a hard landing after gear collapse, veering off a runway at speed, or a controlled impact with terrain when no usable landing area is available.

Not every emergency landing is a crash landing. If the aircraft remains intact or sustains only minor damage, calling the event a crash landing is technically inaccurate. The label is reserved for cases involving significant structural failure. Historical examples include Southern Airways Flight 242, which on April 4, 1977 lost both engines to hailstorm ingestion and made a forced landing on a highway near New Hope, Georgia. The aircraft struck the ground hard, its fuel ignited, and the majority of passengers and several people on the ground were killed.

The Psychology of Emergency Landings

An emergency landing’s outcome depends as much on a pilot’s mental state as on technical skill. Airways Magazine, citing FAA guidance, identifies several psychological factors that can impede a pilot’s ability to respond effectively.

The first is denial — an unconscious resistance to accepting the gravity of the emergency. A pilot who does not fully acknowledge the situation may delay selecting a landing area, maintain incorrect airspeed, or make indecisive control inputs. The second is panic. Fear is a natural response, but when it becomes uncontrolled panic, it degrades decision-making at exactly the moment when clear thinking is most needed.

A third, counterintuitive factor is training bias. AOPA notes that pilots who have practiced simulated forced landings in ideal training environments may expect a clear, flat field when the real emergency occurs in a forest, a suburb, or over water. This expectation can cause them to ignore basic airmanship in an attempt to reach a “perfect” site that does not exist. Pilots who train to accept imperfect outcomes and focus on aircraft control consistently show better survival records.

Notable Examples of Emergency Landings In Aviation History

US Airways Flight 1549 — The Miracle on the Hudson (2009)

The most cited emergency landing in modern aviation history occurred on January 15, 2009. US Airways Flight 1549 — an Airbus A320 — took off from LaGuardia Airport (LGA) in New York City at approximately 3:25 p.m., bound for Charlotte Douglas International Airport (CLT) in North Carolina, carrying 150 passengers and 5 crew.

About two minutes after departure, the aircraft struck a flock of Canada geese. Both engines suffered severe bird ingestion damage, causing an almost complete loss of thrust. Captain Chesley “Sully” Sullenberger and First Officer Jeffrey Skiles attempted multiple engine restarts. All attempts failed.

Sullenberger asked controllers for options at Teterboro Airport in New Jersey and was cleared for Runway 1. Moments later, with the aircraft descending rapidly and passing just 900 feet above the George Washington Bridge, he made a final radio transmission: “We can’t do it […] we’re gonna be in the Hudson.”

Some of the cockpit voice recordings from those final moments read as follows:

“US Airways 1549: this is Cactus 1539 hit birds and both returning back towards LaGuardia. ATC: okay uh you need to return… turn left heading up 220. Captain: Unable.”

At 3:30 p.m., the aircraft made an unpowered ditching on the Hudson River near Midtown Manhattan. The fuselage remained buoyant partly because the fuel tanks were not full. All 155 people on board survived. A National Transportation Safety Board (NTSB) official later described it as “the most successful ditching in aviation history.” New York Governor David Paterson called the event a “Miracle on the Hudson.”

The NTSB’s final report credited the outcome to four factors: the cockpit crew’s decision-making and teamwork, the Airbus A320’s certification for extended overwater operations (which meant life vests and raft-slides were on board), the flight crew’s performance during the evacuation, and the proximity of working vessels to the ditching site. The investigation produced 34 recommendations, including improved engine testing for bird-strike resistance at low speed and expanded simulator training for dual-engine failures at low altitude.

CNN’s follow-up reporting on survivors quoted Captain Sullenberger reflecting on the collective nature of the response:

“This is a reminder of all the people out there who are not corrupt, who are courageous, who are compassionate, they’re doing things, important things, compassionate things all the time. We just don’t know who they all are.”

Air Transat Flight 236 — The Azores Glider (2001)

On August 24, 2001, Air Transat Flight TS236 — an Airbus A330-200 operated by the Canadian charter carrier — departed Toronto Pearson International Airport (YYZ) at 00:52 UTC, bound for Humberto Delgado Airport (LIS) in Lisbon, Portugal, with 293 passengers and 13 crew.

A fuel leak began at 04:38 UTC, approximately four hours into the flight, caused by a fractured fuel line in the right engine. The fracture traced back to an incorrectly installed component during a maintenance procedure at Mirabel Airport the week before. The FAA’s accident case study notes that the leak was not immediately detected by the flight crew. At 05:45 UTC, with fuel below the minimum required to reach Lisbon, the crew diverted toward Lajes Air Base on Terceira Island in the Azores.

At 06:13 UTC, the right engine flamed out from fuel starvation while the aircraft was still 150 nautical miles from Lajes. Thirteen minutes later, the left engine also flamed out. Flight Global reported that both engines failed “as a result of fuel starvation.” The aircraft glided the remaining distance — a total powerless glide of approximately 75 miles, setting a record for the longest unpowered glide in commercial aviation history.

Captain Robert Piché, an experienced glider pilot with 16,800 flight hours, executed a visual approach at night in good weather conditions, performing a 360-degree turn and a series of S-turns to dissipate excess altitude. The aircraft touched down hard on Runway 33 at approximately 200 knots — well above the normal approach speed — and stopped with just 700 metres of runway remaining. All 306 people on board survived; 18 suffered light injuries during the emergency evacuation.

Simple Flying quoted Captain Piché as having said:

 “When you don’t have that other engine, sooner or later you’re going to go down, you know. That’s just about it. You don’t have time to think about anything else than taking care of the safety of the passengers. You do as you’ve been taught.”

Flight 236 emergency landing prompted a serious rethink of fuel management protocols industry-wide. Lajes Airport was formally designated as a key emergency diversion airport for transatlantic flights, and aircraft manufacturers worked with regulators to tighten fuel leak detection and maintenance inspection standards.

QantasLink Flight QF1972 — Smoke In The Cabin (2025)

A more recent example of a precautionary emergency landing involved QantasLink Flight QF1972, an Embraer E190 regional jet operating a short domestic service from Adelaide Airport to Canberra. Shortly after takeoff, the cabin filled with white smoke carrying an electrical smell.

The pilot declared a PAN — the aviation signal indicating priority handling without an immediate Mayday — and returned to Adelaide Airport. Emergency services were on standby. All passengers and crew disembarked without injury. Among those on board were three senior members of the Liberal Party of Australia, travelling to a critical meeting.

The event illustrates how a PAN-PAN declaration — rather than a Mayday — is used when the situation is urgent but the aircraft is still flyable and the hazard is being managed.

Delta Airbus A350 — Hydraulic Emergency At Tokyo Haneda (2024)

Delta Air Lines (DL) Flight DL388 — an Airbus A350 registration N512DN — was en route from Shanghai Pudong International Airport to Detroit Metropolitan Wayne County Airport when the flight crew detected a hydraulic anomaly approximately 140 nautical miles north of Tokyo.

The captain opted for a precautionary diversion to Tokyo Haneda Airport (HND), Japan’s Tokyo Haneda Airport. The aircraft landed safely on Runway 34R at approximately 20:50 local time, with emergency services on standby. The runway was briefly closed following touchdown, and the aircraft was towed to a gate. The remainder of the journey to Detroit was cancelled.

This case is a textbook example of a precautionary landing triggered by a hydraulic system anomaly. SKYbrary notes that hydraulic system failures are among the scenarios that call for a precautionary diversion even when the aircraft remains flyable, because of the risk of cascading failures to flight controls, landing gear, and braking systems.

United Airlines Boeing 787 — Engine Fire At Los Angeles (2025)

In a separate high-profile event, a United Airlines (UA) Boeing 787 returned to Los Angeles International Airport (LAX) after the flight crew detected what appeared to be a fire in the left engine shortly after departure.

The crew declared an emergency, advised ATC of a suspected engine fire, and requested clearance for an immediate return to LAX along with crash and fire rescue (CFR) assistance. Both fire suppression bottles were discharged into the affected engine, but the fire warning returned after approximately 30 seconds, indicating the thermal event had not been fully contained. The aircraft landed on a single functioning engine, with emergency services already in position. The aircraft carried 256 passengers and 12 crew members.

Comparing Emergency Landing Events

Aviation safety researchers track emergency landing incidents to identify systemic patterns and guide regulatory improvements. Several trends emerge from a comparison of major events.

Hydraulic failures appear in a significant proportion of emergency landings. The Delta A350 diversion to Haneda and the LOT Polish Airlines Boeing 767 belly landing in Warsaw both trace to hydraulic system faults. SKYbrary notes that hydraulic systems drive flight controls, landing gear, flaps, and braking — a cascade failure in this system can render an aircraft nearly impossible to land normally.

Bird strikes remain a persistent risk, particularly at low altitude near airports. The US Airways Flight 1549 incident — caused by dual bird ingestion — led the NTSB to call for improved engine testing at low-speed bird-strike conditions and expanded wildlife management programs at airports.

Fuel management failures account for a category of otherwise preventable incidents. Both Air Transat Flight 236 (fuel leak from improper maintenance) and historical cases like the 1983 Gimli Glider (Air Canada Boeing 767 that ran out of fuel due to a unit conversion error) show that mechanical and procedural breakdowns in fuel management can force powerless glides. The industry response to TS236 included tighter maintenance inspection protocols and more rigorous in-flight fuel monitoring procedures.

Fire alerts — even false ones — trigger the full emergency response. The Qantas Flight QF141 Boeing 737-800 incident, in which a potential cargo hold fire alert prompted a Mayday call and diversion to Auckland International Airport (AKL), illustrates this point.

How Aircraft Are Designed for Emergency Survivability

Modern commercial aircraft incorporate features specifically intended to improve outcomes during emergency landings. IntelligentHQ’s analysis of emergency landings lists key design elements:

• Reinforced fuselage structures: Designed to withstand significant impact forces during a hard or off-airport landing.
• Fire-resistant materials: Used throughout the cabin to delay the spread of fire and reduce toxic smoke production.
• Emergency exits and lighting: Floor-level emergency lighting remains active even if main cabin power fails, guiding passengers to exits in low-visibility conditions.
• Fuel system shut-offs: Allow the flight crew to quickly cut fuel supply in the event of fire or fuel leak.
• Emergency ram air turbine (RAT): A small propeller-driven generator that deploys automatically when main power is lost, providing essential electrical power for critical instruments. (This deployed on Air Transat Flight 236 when both engines failed.)
• Life vests and slide-rafts: Aircraft certified for extended overwater operations carry inflatable slides that double as flotation rafts, as seen in the US Airways Flight 1549 evacuation.

Aircraft are also built with redundant flight control systems, hydraulic backups, and automated alert systems that provide the crew with diagnostic information during emergencies. Even so, the outcome of an emergency landing ultimately depends on the skill, judgment, and mental composure of the pilots.

The Role Of Air Traffic Control In Emergency Landings

Air traffic controllers play a critical role the moment a distress or urgency signal is received. SKYbrary’s guidance for controllers prescribes the ASSIST protocol:

• A — Acknowledge and confirm the emergency.
• S — Separate the aircraft from all other traffic immediately.
• S — Silence non-essential transmissions on the frequency.
• I — Inform the airport RFFS, supervising controllers, and all concerned parties.
• S — Support the flight by providing requested information such as runway lengths, nearest suitable aerodromes, and approach type.
• T — Provide time for the crew to assess and address the emergency.

The FAA’s controller handbook instructs controllers to enlist all available radar facilities — including military services — and to coordinate with the Coast Guard and search-and-rescue organizations when an off-airport landing or ditching is anticipated. Departures at the affected airport are stopped. Arriving aircraft may be diverted. The emergency aircraft gets priority on every frequency.

In the US Airways Flight 1549 ditching, controllers offered LaGuardia, then cleared the aircraft for Teterboro. When Sullenberger replied that he could not reach either, the controller immediately contacted the Coast Guard to alert vessels in the Hudson River. This rapid coordination contributed directly to the fast rescue response that reached passengers within 24 minutes of the ditching.

Pilot Training for Emergency Landings

Pilots train for emergency landings from their earliest days in aviation and continue doing so throughout their career. Commercial pilots practice emergency scenarios in full-motion simulators that replicate real-world conditions. Training includes engine failure, cabin depressurization, ditching procedures, and fire response. Simulator training allows pilots to experience and rehearse high-stress emergency decision-making without placing an aircraft or passengers at risk.

Airlines and aviation authorities also have detailed safety protocols and contingency plans. These plans govern everything from crew resource management (CRM) during the emergency to passenger communication and post-landing evacuation.

Pilot Institute’s analysis of belly landings confirms that simulator scenarios explicitly include gear deployment failures and belly landing procedures. This is mandated under FAA regulations, specifically 14 CFR Part 121, Appendix E, which outlines flight training requirements for landing gear system failures. The training emphasizes checklist adherence, system knowledge, and calm decision-making — the same attributes that distinguished the flight crews of all the successful emergency landings profiled in this article.

Shannon Airport (SNN) in Ireland is notable as a real-world benchmark for emergency landings. Shannon has one of the highest rates of emergency landings from transatlantic flights in the world, owing to its position as the first major airport after the eastbound ocean crossing. Its proximity to transatlantic routes makes it a natural diversion point for aircraft experiencing in-flight problems over the North Atlantic.