Aviation Accident Summary Archive

Copa Airlines Flight 201 disintegrated in mid-air and crashed into the Darién Gap after the flight crew became spatially disoriented due to a faulty Attitude Director Indicator (ADI). A short circuit in a wiring harness caused the Captain's ADI to freeze intermittently. Confused by the readings, the crew inadvertently switched both pilots' displays to the same malfunctioning gyroscope. While attempting to navigate around severe weather, the pilots misread their instruments and rolled the aircraft into a steep, high-speed dive that exceeded the airframe's structural limits.

Human Factors (Operational)

On May 4, 1992, the captain of a United Airlines Boeing 757 suffered a fatal heart attack while the aircraft was holding for takeoff at Denver. The aircraft was stationary at the taxiway hold line with brakes set when the captain became incapacitated. Despite immediate medical assistance from a physician on board and a flight attendant, the captain was pronounced dead upon arrival at a local hospital. The aircraft sustained no damage and no other injuries were reported.

Human Factors (Operational)

A ground mechanic was fatally injured during maintenance at Dayton International Airport when a nose wheel rim failed due to explosive over-inflation. The aircraft was stationary at the gate when the mechanic attempted to service a replacement tire using a high-pressure nitrogen bottle equipped with a dual-scale high-pressure regulator instead of the required low-pressure regulator. The wheel rim, stressed beyond its design limits, suffered a tensile overload failure. None of the 29 occupants on board were injured.

Human Factors (Maintenance)

While climbing through FL320 in turbulent conditions, the aircraft's number 4 engine detached from the wing due to fatigue failure of the pylon's forward midspar fitting. As it fell, it struck the number 3 engine, causing it to also detach. Despite a severe fire on the right wing and significant aerodynamic damage, the crew performed an emergency landing at Istres-Le Tubé Air Base. All five occupants survived, though the aircraft was destroyed by the post-landing fire.

Structural Failure

Aviaco Flight 231 suffered a catastrophic structural failure during a hard landing at Granada Airport in heavy rain and windshear conditions. The aircraft struck the runway with a vertical force of 4.49g, bounced, and impacted a second time at 4.79g, causing the fuselage to break into two pieces. Despite the complete separation of the airframe and a subsequent fuel leak, all 99 occupants survived the accident, which became known locally as the Miracle of Granada.

Weather

USAir Flight 405 crashed into Flushing Bay shortly after lifting off from Runway 13 at LaGuardia Airport, following a prolonged taxi delay in snowy conditions. The aircraft failed to gain sufficient lift due to ice contamination on the wings, which disrupted the airflow and caused the jet to roll violently to the left. Despite two prior deicing applications, the flight crew allowed more than 35 minutes to elapse before attempting takeoff, exceeding the effective duration of the Type I deicing fluid. The accident resulted in 27 fatalities, including the captain and one cabin crew member.

Pilot Error

Air Transport International Flight 805, a Douglas DC-8-63F cargo flight, crashed during a second go-around attempt at Toledo Express Airport, killing all four people on board. The fatalities included three crew members and one non-revenue passenger. The aircraft became destabilized during two consecutive instrument approaches in nighttime, instrument meteorological conditions (IMC) with significant crosswinds. During the second missed approach, the captain took control from the first officer but quickly became spatially disoriented, likely due to physiological factors or a potential malfunction of his Attitude Director Indicator (ADI). This led to an extreme bank angle of 80 degrees and a nose-high pitch of 25 degrees. Although control was transferred back to the first officer who attempted a recovery, the aircraft struck the ground before it could be leveled.

Human Factors (Operational)

A Convair CV-640 charter flight carrying Club Mediterranee tourists crashed into a swampy area near Kafountine after the crew mistook the blue lights of a hotel for the approach lights of Cap Skirring Airport. The aircraft was approximately 52 kilometers north of its intended destination when it struck trees during a premature descent. The investigation revealed the aircraft was being operated illegally with numerous mechanical deficiencies, including 16 inoperative instruments, and a crew that was not familiar with the region. The accident resulted in 31 fatalities.

Controlled Flight Into Terrain (CFIT)

An Azerbaijani Mil Mi-8 transport helicopter carrying 41 civilian passengers and 3 crew members was shot down by a surface-to-air missile near Shusha. The aircraft was en route from Aghdam to the blockaded town of Shusha when it was struck by a heat-seeking missile, killing everyone on board. The incident occurred during the height of the Nagorno-Karabakh War and was described by the U.S. Federal Aviation Administration as the most significant aviation security incident in Central Eurasia at the time.

Military Action

Air Inter Flight 148 crashed into the Vosges Mountains while on a non-precision approach to Strasbourg Airport. The accident was primarily caused by the flight crew's inadvertent selection of an extremely high descent rate of 3,300 feet per minute, likely due to mode confusion on the Flight Control Unit (FCU). The aircraft, which was not equipped with a Ground Proximity Warning System (GPWS), struck a ridge at 2,620 feet, killing 87 of the 96 people on board.

Controlled Flight Into Terrain (CFIT)

On January 7, 1992, a Yugoslav Air Force MiG-21bis shot down an Agusta-Bell AB-206L helicopter carrying European Community Monitor Mission (ECMM) observers. The helicopter was part of a two-aircraft formation flying from Kaposvar to Zagreb to monitor a ceasefire during the Croatian War of Independence. Despite the mission being pre-announced and the helicopters being painted white, a Yugoslav fighter pilot, acting on orders from the 5th Aviation Corps, intercepted the formation and fired air-to-air missiles. The lead helicopter was struck and destroyed, killing all five personnel on board, while the second helicopter performed an emergency landing in a field. The incident led to the immediate resignation of the Yugoslav Federal Defense Minister and international condemnation.

Military Action · Multi-aircraft

CommutAir Flight 4821 crashed into a wooded hillside during an ILS approach to Adirondack Regional Airport, resulting in two fatalities. The Beechcraft 1900C descended below the glide slope while attempting to land at Saranac Lake during a multi-leg flight to Newark. Investigators determined the flight crew failed to stabilize the approach and cross-check their instruments, potentially misled by unreliable glide slope indications caused by precipitation static interference.

Pilot Error

China Airlines Flight 358, a Boeing 747 freighter, crashed into a hillside near Wanli, Taiwan, after both engines on the right wing detached in flight. Shortly after takeoff, the number 3 engine pylon failed due to fatigue cracking, causing the engine to separate and strike the number 4 engine, which also broke away. The loss of both engines and the resulting damage to the wing's leading edge caused an immediate and unrecoverable loss of control. All five crew members were killed.

Human Factors (Maintenance)

A McDonnell Douglas MD-81 suffered a dual engine failure shortly after takeoff from Stockholm when clear ice, which had formed on the wings overnight, broke off and was ingested into the rear-mounted engines. The pilots successfully performed an emergency landing in a field near Gottröra. Despite the aircraft breaking into three pieces, all 129 people on board survived.

Weather

A Mil Mi-8T transport helicopter carrying an Azerbaijani-led peacekeeping mission was shot down by Armenian forces near the village of Karakend. The aircraft was transporting 13 Azerbaijani government officials, including the Secretary of State and Minister of Internal Affairs, along with Russian and Kazakhstani observers and journalists. Initial Soviet reports attributed the crash to fog and terrain, but subsequent investigation identified rocket-entry holes in the fuselage and evidence of large-caliber weapon fire. The incident led to the immediate escalation of the Nagorno-Karabakh conflict, the abolition of the region's autonomous status by Azerbaijan, and the suspension of peace negotiations.

Military Action

Yugavia Flight S-519 crashed into Mount Kukurtbash during approach to Makhachkala after air traffic controllers and the flight crew committed multiple procedural violations. The aircraft was significantly overloaded with 13 unauthorized passengers and was vectored off the established air corridor into mountainous terrain. Misleading position data from ATC and the crew's failure to verify their location using onboard instruments led the aircraft to descend below the minimum safe altitude in IMC, resulting in a fatal collision with the mountain slope.

Controlled Flight Into Terrain (CFIT)

A Bell 206B JetRanger helicopter carrying legendary music promoter Bill Graham crashed into a high-voltage transmission tower during a night flight in severe weather. The pilot, despite receiving a weather briefing recommending against VFR flight, attempted to navigate at low altitude beneath a 200-foot cloud ceiling in heavy rain and gusty winds.

Pilot Error

An off duty airline employee was fatally struck by a spinning propeller while assisting with ground preparations for a scheduled flight to Newark. The aircraft was parked on the ramp at Sikorsky Memorial Airport with its right engine running during the hours of darkness. Neither the flight crew nor the station agent were aware of the employee's presence on the right side of the aircraft until they heard a loud thump and discovered the individual lying beneath the propeller.

Human Factors (Operational)

An Indonesian Air Force C-130H-30 Hercules crashed into a government building shortly after takeoff from Jakarta, resulting in 135 total fatalities. The aircraft was transporting 122 airmen (Paskhas/Orange Berets) and 12 crew members back to Bandung following an Armed Forces Day ceremony. Witnesses reported seeing a fire in one of the engines during the initial climb. The crew declared an emergency and was cleared to return to the airport, but the aircraft lost control and stalled, striking a vocational training center belonging to the Department of Labor. Of the 134 people on board, 133 were killed and one survived; two security guards on the ground also perished.

Engine Failure

Continental Express Flight 2574 suffered a catastrophic in-flight breakup after the leading edge of the left horizontal stabilizer separated during descent. The investigation revealed that 47 screws securing the upper surface of the leading edge had been removed during maintenance the previous night but were never replaced due to a breakdown in shift-turnover communication. The missing fasteners allowed the leading edge to tear away at high speed, causing a sudden loss of stabilizer downforce, a severe nose-down pitch, and the subsequent structural failure of the wings.

Human Factors (Maintenance)

Indian Airlines Flight 257 crashed into Thangjing Hill during its approach to Imphal after the flight crew deviated from the established flight plan and instrument approach procedures. The captain, who was highly familiar with the route, relied on visual landmarks and instinct rather than instrument data in overcast conditions, leading to a premature descent into hilly terrain. All 69 people on board were killed.

Controlled Flight Into Terrain (CFIT)

Nigeria Airways Flight 2120, operated by Nationair Canada, crashed shortly after takeoff from Jeddah when under-inflated tires overheated and caught fire during the takeoff roll. The fire intensified after the landing gear was retracted, burning through hydraulic lines and the cabin floor. The aircraft broke up and crashed while attempting an emergency return to the airport, killing all 261 people on board. The investigation revealed that maintenance personnel were aware of the low tire pressures but were pressured by a project manager to depart to avoid delays.

Human Factors (Maintenance)

L'Express Airlines Flight 508 crashed into a residential neighborhood while attempting to land at Birmingham Municipal Airport during a severe thunderstorm. The captain elected to continue the instrument approach despite significant weather activity that had caused other aircraft to divert or hold. During the approach, the aircraft encountered extreme updrafts and a significant roll, leading to a loss of control. The Beechcraft C99 struck two houses in the Ensley neighborhood and burst into flames, killing 13 of the 15 people on board.

Pilot Error

A Boeing 767 suffered an uncommanded deployment of the left engine thrust reverser during climb, leading to a high-speed aerodynamic stall and structural disintegration.

Mechanical Failure