Investigation Archives - Aviation Today

Wuzhou, China: The crash of China Eastern Airlines Flight 5735 crash continues to raise critical questions more than four years after the disaster, as newly surfaced U.S. investigative data points toward deliberate cockpit actions while Chinese authorities maintain silence, citing national security concerns. On March 21, 2022, a Boeing 737-800 operated by China Eastern Airlines plunged from cruising altitude into mountainous terrain in Guangxi, killing all 132 passengers and crew on board. The aircraft, en route from Kunming to Guangzhou, entered a near-vertical descent from approximately 29,000 feet, leaving investigators initially baffled due to the absence of distress calls or clear external triggers. Early findings released by the Civil Aviation Administration of China (CAAC) ruled out conventional causes such as mechanical failure, severe weather, or hazardous cargo. The aircraft was deemed airworthy, the crew qualified and medically fit, and no evidence of explosives was found. Flight data and cockpit voice recorders were recovered and analyzed with assistance from international agencies, including the National Transportation Safety Board (NTSB), yet interim reports issued between 2022 and 2024 stopped short of identifying a definitive cause, describing the event as “very complicated and very rare.” Attention began to shift toward possible human involvement after early assessments indicated that control inputs from the cockpit forced the aircraft into its steep descent. However, no official conclusion was publicly endorsed, and the investigation appeared to stall as updates from Chinese authorities became increasingly limited. A significant breakthrough emerged in 2026 following the release of previously undisclosed materials through a Freedom of Information Act (FOIA) request to the NTSB. According to flight data recorder analysis, both engine fuel control switches were moved to the “cutoff” position approximately 23 seconds before the recording ceased. This action resulted in an immediate loss of engine thrust, followed by autopilot disengagement and aggressive forward control inputs that drove the aircraft into a rapid descent. The loss of electrical power shortly afterward caused the recorder to stop, leaving the final moments of the flight undocumented. The cockpit voice recorder, which continued operating briefly on backup power, was successfully recovered and analyzed. However, its contents have not been made public. The NTSB confirmed that it does not retain copies of the audio, and access remains under the control of Chinese authorities, making it a crucial yet unavailable piece of evidence in determining the sequence of events inside the cockpit. While the available data suggests that the shutdown of both engines was unlikely to be accidental and is consistent with deliberate manual input, investigators have not identified which pilot may have acted or under what circumstances. The data also does not establish motive, leaving open possibilities ranging from intentional action to incapacitation or other in-flight scenarios. Reports speculating about a possible struggle in the cockpit have surfaced in some media outlets but remain unverified and are not part of any confirmed investigative findings. Despite the emergence of these critical details, the CAAC has yet to release a final accident report, well beyond the timeline prescribed under international aviation norms. Officials have indicated that disclosing further information could endanger national security or disrupt social stability, an explanation that has drawn concern from global aviation bodies and safety experts. Under standard practices, accident investigations are expected to produce a final report within one year to ensure that safety lessons are shared across the industry. The continued lack of transparency has left several fundamental questions unanswered. Without access to the cockpit voice recordings and a comprehensive official report, the exact cause of the crash remains unresolved.

NTSB Data Suggests Possible Deliberate Engine Shutdown In MU5735 Crash That Killed 132

Aviation Today News Desk May 6, 2026

Wuzhou, China: The crash of China Eastern Airlines Flight 5735 crash continues to raise critical questions more than four years after

El Alto, Bolivia: Bolivian authorities have arrested the pilot and co-pilot of a Bolivian Air Force Lockheed C-130H Hercules following an official investigation that concluded the February 2026 crash near La Paz was preventable and largely linked to operational errors during landing. The aircraft crashed on February 27, 2026, while attempting to land at El Alto International Airport, after completing a domestic flight from Santa Cruz. During landing in adverse weather, the aircraft failed to decelerate on the runway, veered off the surface, breached the airport perimeter, and ploughed into a busy roadway, striking multiple vehicles before breaking apart in a densely populated area. The crash resulted in 24 fatalities and at least 43 injuries, with the majority of victims on the ground. Among the dead were civilians, including passengers in public transport vehicles hit by the aircraft. Several crew members were also injured, making it one of Bolivia’s deadliest aviation disasters in recent decades. Initial reports had indicated a lower death toll, but the number rose significantly as rescue teams recovered victims from the wreckage and surrounding impact zone. The situation on the ground quickly descended into chaos after it emerged that the aircraft was transporting a large consignment of newly printed banknotes for the Central Bank of Bolivia. The impact scattered currency across the crash site, drawing crowds of civilians who rushed to collect the money. Authorities deployed police and military units, including the use of tear gas, to secure the area and allow emergency responders to operate. Officials later declared the banknotes invalid, as they had not yet entered circulation, and subsequently destroyed recovered cash. A formal investigation by the Bolivian Air Force, the findings of which were released on April 30, 2026, identified a chain of operational failures rather than a single-point cause. Investigators determined that adverse weather conditions, including a wet runway and reduced braking efficiency, were contributing factors but not the primary cause. Instead, the report placed significant emphasis on pilot handling during the landing phase. According to the findings, the aircraft executed an improper landing sequence, touching down with the nose gear before the main landing gear, a critical procedural error that compromised braking effectiveness and aircraft stability. This technique reduced aerodynamic drag and delayed the full deployment of braking systems, significantly increasing stopping distance on an already wet runway. The report further highlighted inadequate coordination and communication with air traffic control, which may have affected situational awareness during the final approach and landing rollout. Investigators also pointed to failure to execute a go-around despite unstable landing conditions, a decision that could have prevented the accident altogether. Additionally, the probe noted that standard landing protocols and safety margins were not maintained, particularly given the weather conditions. The combination of these factors resulted in a runway excursion at high speed, leaving the crew unable to regain control before the aircraft exited the airfield boundary. Crucially, investigators concluded that the crash was preventable, stating that proper adherence to established landing procedures and timely decision-making would likely have avoided the accident. Based on these findings, Bolivian prosecutors issued arrest warrants for the pilot and co-pilot on April 30, with both taken into custody on May 1, 2026, following questioning. The two are currently being held in pre-trial detention and face charges of involuntary manslaughter, with authorities alleging that negligent handling of the aircraft and failure to follow standard operating procedures directly contributed to the loss of life.

Pilot & Co-Pilot Arrested After Probe Finds Errors In Bolivian Military Plane Crash

Aviation Today News Desk May 4, 2026

El Alto, Bolivia: Bolivian authorities have arrested the pilot and co-pilot of a Bolivian Air Force Lockheed C-130H Hercules following an

$Houston, United States: The National Transportation Safety Board (NTSB) has released its final investigation report into a rejected takeoff and emergency evacuation involving a United Airlines Airbus A319 in Houston, concluding that breakdowns in crew coordination and escalating passenger panic significantly increased risk during the incident. The occurrence took place on February 2, 2025, at 08:16 local time at George Bush Intercontinental Airport. United Airlines Flight 1382, bound for New York LaGuardia, was accelerating for departure when a loud bang was heard from the right engine, followed by an “ENG 2 FAIL” indication. The aircraft had not yet reached decision speed when the flight crew rejected the takeoff and brought the jet to a stop on the runway. All 112 occupants, 107 passengers and five crew members remained unharmed. According to the final report, the incident was triggered by a failure within the right engine’s high-pressure compressor. A detailed teardown later confirmed that a third-stage rotor blade fractured due to high cycle fatigue after accumulating more than 40,000 flight hours and over 19,500 cycles. The failure caused internal damage to the engine but remained contained, preventing further structural consequences to the aircraft. What followed inside the cabin, however, became the central focus of the investigation. Despite repeated instructions from both pilots and cabin crew to remain seated, several passengers began shouting that the engine was on fire. Panic quickly spread, particularly in the rear cabin, where passengers stood up, retrieved carry-on baggage, and moved toward the exits. Cabin crew efforts to restore order were increasingly ineffective as congestion built in the aisle and near the aft galley. Faced with escalating pressure and unable to establish communication with the cockpit, a flight attendant initiated an evacuation from the rear left door without direct authorization from the flight crew. Investigators found that the evacuation alarm was not activated, a critical procedural step designed to alert the cockpit and coordinate actions. As a result, the evacuation began while the aircraft’s left engine was still running. The premature opening of the rear left door created a hazardous situation. The evacuation slide deployed into the exhaust airflow of the operating engine, causing it to whip violently and twist for nearly 100 seconds. During this period, three passengers descended the slide before it fully stabilized. The slide subsequently deflated after a structural component failed under stress, rendering the exit unusable. Evacuation was then redirected to the rear right door, where the slide deployed normally and passengers were able to exit safely. The investigation determined that the slide failure was not due to manufacturing defects but was caused by structural overload when exposed to engine exhaust forces beyond its design limits. Safety analysis confirmed that evacuation slides are not certified to operate under such conditions, underscoring the risks of initiating evacuation procedures without full engine shutdown. The NTSB’s final report, published on April 29, 2026, identified the probable cause as the failure of the cabin crew to activate the evacuation alarm and maintain effective communication with the flight crew after deciding to evacuate. This breakdown resulted in passengers evacuating while an engine remained operational. The report also highlighted passenger noncompliance as a major contributing factor, noting that individuals ignored instructions, retrieved baggage, and in some cases forced access to exits, accelerating the breakdown of order in the cabin. The findings align with longstanding safety concerns about passenger behavior during emergencies. The Federal Aviation Administration has repeatedly warned that retrieving carry-on baggage during evacuations can delay egress and increase risk. In response to similar incidents, the agency issued Safety Alert for Operators (SAFO) 25003 in September 2025, urging airlines to strengthen passenger briefings and improve communication strategies to discourage such behavior. No injuries were reported in this incident, investigators emphasized that the outcome could have been far more serious.$

NTSB Finds Crew Lapses, Passenger Panic In United A319 Houston Evacuation Event Probe

Aviation Today News Desk May 1, 2026

Houston, United States: The National Transportation Safety Board (NTSB) has released its final investigation report into a rejected takeoff and emergency

In-Flight Photo Attempt Blamed For South Korean F-15K Jet Collision, Audit Reveals

Aviation Today News Desk April 23, 2026

Daegu, South Korea: A mid-air collision between two Republic of Korea Air Force F-15K fighter jets has been attributed to pilot

Icelandair Probes Pilot After Unauthorised Low Flyover On Final Flight Pre-Retirement

Aviation Today News Desk April 14, 2026

Vestmannaeyjar, Iceland: Iceland’s flag carrier Icelandair has launched an investigation after one of its senior pilots conducted an unauthorised low-altitude flyover

Mexico City, Mexico: In a landmark ruling that reshapes the narrative of one of Cuba’s deadliest aviation disasters, a Mexican court has held charter airline Aerolíneas Damojh (Global Air) responsible for the 2018 crash of a Boeing 737 in Havana, concluding that the aircraft suffered from severe maintenance failures and “should never have flown.” The decision, based on court documents dated March 31 and reviewed by multiple international outlets, marks a significant legal departure from earlier findings that attributed the accident primarily to pilot error. An independent expert assessment presented during proceedings determined that the crash of Cubana de Aviación Flight 0972 was an “institutional accident” caused by systemic maintenance negligence. The report emphasized that the pilots were merely the “final line of defense” and were unable to prevent the catastrophe once critical failures had already developed. The judge accepted these findings and ruled that the aircraft’s operator, Global Air, bore responsibility for placing an unfit aircraft into service. The court ordered Global Air to pay USD 1.5 million in compensation to each of the families of the four Mexican crew members who initiated the lawsuit. Notably, the airline failed to appear in court and was tried in absentia, while the aircraft’s insurer also named in the case was ultimately cleared of financial liability. Legal representatives for the plaintiffs described the ruling as “groundbreaking”, arguing that it validates long-standing concerns about the airline’s maintenance practices and operational standards. The accident occurred on May 18, 2018, when a Boeing 737-200 (registration XA-UHZ) crashed shortly after takeoff from José Martí International Airport in Havana while operating a domestic flight to Holguín. Of the 113 people onboard, 112 were killed, making it one of the deadliest aviation disasters in Cuba in decades. Only one passenger survived. The aircraft was owned and operated by Global Air, a Mexican charter airline, and was leased to Cuba’s state carrier Cubana de Aviación under a wet lease agreement. The Mexican ruling directly contradicts Cuba’s 2019 official investigation, which attributed the crash primarily to pilot error and weight miscalculation, citing deficiencies in crew performance and operational procedures. In contrast, the Mexican court concluded that chronic maintenance deficiencies and systemic oversight failures were the root cause, reframing the accident as a broader organizational failure rather than an isolated human error. Global Air had faced prior operational scrutiny in Mexico, including temporary suspension following the crash as authorities examined its compliance with safety regulations. Reports cited during the case highlighted a history of technical issues and complaints, raising questions about the aircraft’s airworthiness long before the accident occurred. Beyond the initial lawsuit, broader legal proceedings are underway. Lawyers representing victims confirmed that: A class-action civil lawsuit covering all victims is in progress A criminal complaint for homicide has been filed against the airline and responsible parties However, the criminal investigation in Mexico has reportedly stalled due to limited cooperation from Cuban authorities. Samuel González, counsel for the victims’ families, described the judgment as a hard-fought and “groundbreaking” decision for Mexico. He said the ruling reinforces early admissions made in Havana by the airline’s own head of maintenance, who acknowledged to relatives that the aircraft should not have been cleared for operation. “That aircraft operated for nearly a decade without proper maintenance,” González said. “The crash occurred in Cuba, but the risk was universal.” Efforts to reach representatives of the airline for comment were unsuccessful. González also indicated that the carrier may be moving toward bankruptcy proceedings, warning that any attempt to misuse the process would be legally challenged.

Mexican Court Rejects Pilot Error, Blames Maintenance In 2018 Cuba Crash That Killed 112

Aviation Today News Desk April 13, 2026

Mexico City, Mexico: In a landmark ruling that reshapes the narrative of one of Cuba’s deadliest aviation disasters, a Mexican court

Ankara, Turkey: Turkey has ruled out sabotage, explosives, and any form of external attack in the crash of a Turkish Air Force C-130 military transport aircraft near the Georgia-Azerbaijan border, according to early findings released as part of the ongoing investigation. The aircraft, a Lockheed C-130 Hercules, crashed on November 11, 2025, while operating a return flight from Ganja in Azerbaijan to Merzifon Air Base in Turkey. All 20 personnel on board, including crew members and military technical staff, were killed in the accident, making it one of the deadliest recent incidents involving the Turkish Air Force. Initial data from the time of the crash indicated a sudden and catastrophic in-flight breakup. The aircraft was cruising at altitude when it disappeared from radar without issuing a distress call. Tracking data showed a rapid and uncontrolled descent, with the aircraft breaking into multiple sections mid-air before crashing in Georgia’s Kakheti region near the Azerbaijan border. The wide debris field and separation of major components suggested structural failure occurred before ground impact. According to the latest findings cited by Caliber and supported by Turkish authorities, forensic examinations have found no evidence of explosives, missile strike, or any external interference. Investigators reported no traces of bomb residue, shrapnel, or chemical agents, effectively ruling out sabotage or a hostile act. Turkish officials have also dismissed circulating claims suggesting the aircraft may have been shot down, describing them as unfounded. With external causes eliminated, the investigation has now narrowed its focus to possible internal factors, including mechanical malfunction or structural failure. Preliminary assessments suggest that a critical structural component, possibly in the tail section, may have failed mid-flight, leading to the aircraft breaking apart into multiple sections. The exact sequence of events, however, remains under detailed examination. The aircraft had undergone modernization in recent years and reportedly completed maintenance checks roughly a month before the crash. Despite this, investigators are examining whether structural fatigue, system failure, or an undetected defect could have triggered the catastrophic breakup. Authorities continue to analyse data from the flight data recorder and cockpit voice recorder, which are expected to play a key role in determining the final cause. Officials have indicated that a comprehensive final report will only be released after full technical, forensic, and operational analysis is completed. Following the accident, Turkey temporarily grounded its C-130 fleet for safety inspections and deployed a large investigation team to the crash site. Wreckage recovered from the mountainous terrain has been transported for detailed examination as part of the probe. While early findings have provided clarity by ruling out external factors, the final report is expected to establish the precise cause and sequence of failures that led to the mid-air breakup of the aircraft.

Turkey Rules Out Sabotage Or Explosion In Deadly C-130 Crash That Killed 20

Aviation Today News Desk April 9, 2026

Ankara, Turkey: Turkey has ruled out sabotage, explosives, and any form of external attack in the crash of a Turkish Air

AAIB Flags Safety Lapses In Pawan Hans Helicopter Crash That Killed 1, Injured 4

Aviation Today News Desk April 6, 2026

Andaman and Nicobar Islands, India: India’s Aircraft Accident Investigation Bureau (AAIB) has identified multiple safety lapses in the Pawan Hans helicopter

Wuzhou, China: The Boeing 737-800 aircraft, operating a routine domestic service from Kunming to Guangzhou on March 21, 2022, was carrying 132 people, including 123 passengers and nine crew members. About an hour into the flight, while cruising at altitude, the aircraft suddenly entered a steep and rapid descent before plunging almost vertically into a mountainous, forested area in Guangxi. All 132 occupants were killed, and no survivors were found, marking China’s deadliest air crash. China’s aviation regulator, the Civil Aviation Administration of China, launched an investigation immediately after the crash, dispatching emergency teams to the remote impact site. Due to the aircraft’s U.S. manufacture, the investigation also involved international participants, including the National Transportation Safety Board, Boeing, and the Federal Aviation Administration, who provided technical assistance. A major breakthrough in the early phase of the investigation came with the recovery of both flight recorders. The cockpit voice recorder was located on March 23, 2022, followed by the flight data recorder, which was retrieved from deep within the crash debris days later. Both devices were severely damaged due to the high-impact crash and required detailed forensic analysis, including data extraction overseas. Preliminary examination of the data indicated that the aircraft descended rapidly from around 29,000 feet, briefly stabilized, and then entered a final near-vertical dive. Air traffic controllers attempted to contact the pilots multiple times during the descent, but no distress call was made and no response was received from the cockpit. In its preliminary report released in April 2022, the CAAC ruled out several common causes of aviation accidents. Investigators found no evidence of mechanical failure, adverse weather conditions, or dangerous cargo. The aircraft was deemed airworthy and properly maintained, while the flight crew were found to be qualified, adequately rested, and medically fit. Follow-up updates issued in 2023 and 2024 reiterated these findings, stating that no abnormalities had been identified in the aircraft systems, flight operations, or air traffic control procedures. Despite these findings, investigators have not been able to establish a definitive cause of the crash. A report published in 2022 by The Wall Street Journal, citing U.S. officials familiar with black box analysis, suggested that the aircraft may have been intentionally put into a dive from the cockpit. However, Chinese authorities have not confirmed this interpretation and have cautioned against speculation, warning that unverified conclusions could mislead the public and interfere with the investigation. Under international aviation standards set by the International Civil Aviation Organization, accident investigations are expected to produce an initial report within 30 days and a final report within one year wherever possible. In the case of MU5735, a preliminary report was issued within the required timeframe, but no final report has been released even after four years. The last official update from Chinese authorities came in March 2024, with no substantive developments disclosed since then. The prolonged delay has drawn attention from global aviation bodies, including the International Air Transport Association, which has emphasized the importance of timely accident reports in improving aviation safety worldwide. As of 2026, the investigation into Flight MU5735 remains officially ongoing. No confirmed cause has been identified, and no comprehensive final report has been made public.

China’s Deadliest Crash Still Unresolved As MU5735 Probe Continues Four Years On

Aviation Today News Desk March 30, 2026

Wuzhou, China: The Boeing 737-800 aircraft, operating a routine domestic service from Kunming to Guangzhou on March 21, 2022, was carrying

NTSB Cites Runway Safety System Failed To Alert Before Deadly LaGuardia Collision

Aviation Today News Desk March 26, 2026

New York, United States: A critical runway safety alert system at LaGuardia Airport (LGA) failed to issue a warning before an

Investigation

NTSB Data Suggests Possible Deliberate Engine Shutdown In MU5735 Crash That Killed 132

Pilot & Co-Pilot Arrested After Probe Finds Errors In Bolivian Military Plane Crash

NTSB Finds Crew Lapses, Passenger Panic In United A319 Houston Evacuation Event Probe

In-Flight Photo Attempt Blamed For South Korean F-15K Jet Collision, Audit Reveals

Icelandair Probes Pilot After Unauthorised Low Flyover On Final Flight Pre-Retirement

Mexican Court Rejects Pilot Error, Blames Maintenance In 2018 Cuba Crash That Killed 112

Turkey Rules Out Sabotage Or Explosion In Deadly C-130 Crash That Killed 20

AAIB Flags Safety Lapses In Pawan Hans Helicopter Crash That Killed 1, Injured 4

China’s Deadliest Crash Still Unresolved As MU5735 Probe Continues Four Years On

NTSB Cites Runway Safety System Failed To Alert Before Deadly LaGuardia Collision

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