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FDR

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 […]

Taiwan Probes EVA Air Pilots Over Mayday Distress Calls After Taoyuan Runway Closure SEO DES: EVA Air flights BR392 and BR007 and Hong Kong Airlines flight HX260 declared fuel emergencies after extended holding. All landed safely with no injuries SOCIAL: Taiwan’s Civil Aviation Administration is investigating two EVA Air flight crews after three aircraft declared Mayday while holding near Taiwan Taoyuan International Airport on February 8. The emergency calls followed a runway closure triggered by a landing gear detachment on a T'way Air Boeing 737-800. EVA Air flights BR392 and BR007, along with Hong Kong Airlines flight HX260, declared fuel emergencies after extended holding. All aircraft landed safely with no injuries reported. Regulators are reviewing whether the Mayday calls met safety criteria and whether required cockpit voice and flight data recordings were properly preserved. Taoyuan City, Taiwan: Taiwan’s Civil Aviation Administration (CAA) has launched an investigation into two EVA Air flight crews after they issued Mayday distress calls while approaching Taiwan Taoyuan International Airport earlier this month. The incident occurred on February 8 when a T'way Air Boeing 737-800 arriving from Jeju Island suffered a right main landing gear detachment upon landing at Taiwan Taoyuan International Airport, prompting authorities to temporarily close the airport’s north runway. The shutdown led to airspace congestion during peak evening traffic, forcing several inbound aircraft into extended holding patterns. Among the affected flights were EVA Air services BR392 and BR007, along with Hong Kong Airlines flight HX260. As fuel levels dropped while circling, all three flight crews declared “Mayday,” signaling a fuel emergency and requesting landing priority. All three aircraft landed safely, and no injuries were reported. The CAA confirmed it is reviewing whether the Mayday declarations met established aviation safety criteria or were made prematurely. Under international procedures, pilots may declare a fuel emergency if remaining fuel is projected to fall below final reserve levels, but regulators are assessing whether the situation met that threshold. In addition to examining cockpit communications and fuel calculations, authorities are investigating compliance with Taiwan’s Civil Aviation Act, which requires airlines to preserve cockpit voice recorder (CVR) and flight data recorder (FDR) data following an emergency declaration. Initial findings indicate that required data preservation procedures may not have been fully followed in the EVA Air cases. Officials have interviewed the involved pilots and are analyzing air traffic control recordings and flight tracking information as part of the ongoing inquiry. The CAA said any violations could result in administrative penalties or corrective actions. The runway disruption occurred during a high-traffic period ahead of Lunar New Year travel, intensifying pressure on airport operations. The CAA has advised airlines operating at Taoyuan to review fuel planning, contingency procedures and emergency communication protocols to ensure full compliance with safety standards. EVA Air has not publicly commented in detail on the investigation but confirmed that the flights landed safely and that it is cooperating with authorities.

Taiwan Probes EVA Air Pilots Over Mayday Distress Calls After Taoyuan Runway Closure

Aviation Today News Desk / February 19, 2026

Taoyuan City, Taiwan: Taiwan’s Civil Aviation Administration (CAA) has launched an investigation into two EVA Air flight crews after they

Jakarta, Indonesia: Indonesian authorities confirmed on Friday that all 10 victims from the fatal crash of an Indonesia Air Transport (IAT) ATR 42-500 turboprop aircraft have been recovered, concluding a seven-day search and rescue operation on the steep slopes of Mount Bulusaraung in South Sulawesi. The aircraft, registered PK-THT, disappeared from radar on January 17 while on a maritime surveillance mission for the Ministry of Marine Affairs and Fisheries. It was en route from Adisutjipto Airport, Yogyakarta, to Sultan Hasanuddin International Airport in Makassar when contact was lost during its final approach. Rescue teams, comprising personnel from the National Search and Rescue Agency (Basarnas), military, police, and volunteers, faced rugged terrain, steep ravines, dense fog, and volatile weather throughout the operation. Bodies were found in scattered locations on the mountainside and transported to forensic specialists in Makassar for Disaster Victim Identification (DVI) procedures. By Friday morning, the 10th and final victim had been located, marking the official end of the recovery phase. Authorities expressed condolences to the families of the victims and reiterated support for identification and repatriation processes. A key breakthrough in the investigation came with the recovery of the aircraft’s cockpit voice recorder (CVR) and flight data recorder (FDR) from the wreckage. A joint SAR team located both units intact in the tail section of the aircraft on January 21, despite adverse weather delaying initial access. Following extraction from the crash site, the devices were secured and transported to a checkpoint in Tompobulu village, before being handed over to the National Transportation Safety Committee (KNKT), Indonesia’s official air accident investigation authority. Basarnas Chief Air Marshal Mohammad Syafii confirmed that the recorders will be analyzed to reconstruct the sequence of events leading up to the crash. Earlier in the response, the KNKT classified the crash as a Controlled Flight Into Terrain (CFIT) incident, indicating the aircraft was under control when it impacted the mountain slope although classification does not imply pilot intent or assign fault. The investigation team has not yet publicly disclosed a definitive cause, citing the ongoing analysis of flight recorder data and other evidence. The ATR 42-500 turboprop was conducting a routine surveillance mission in support of fisheries and maritime resource monitoring when it vanished. Initial reports indicated 10 people on board, including seven crew members and three passengers from the Ministry of Marine Affairs and Fisheries. The mountainous crash zone spans portions of Maros and Pangkajene and Islands regencies, complicating early rescue efforts and driving a multi-agency coordinated response.

Search Ends After All 10 Victims Are Found In Indonesia ATR-42 Crash In Sulawesi Mountains

Aviation Today News Desk / January 25, 2026

Jakarta, Indonesia: Indonesian authorities confirmed on Friday that all 10 victims from the fatal crash of an Indonesia Air Transport

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