A devastating aviation disaster unfolded within seconds of takeoff, leaving hundreds dead and investigators grappling with one of the most complex and troubling accident scenarios in recent history.
On Jun 12th 2025, an Air India Boeing 787-8 Dreamliner, registration VT-ANB, operating flight AI-171 from Ahmedabad to London Gatwick with 230 passengers and 12 crew, began its takeoff roll from runway 23 at 13:38 local time.
Moments after liftoff, the flight crew transmitted a chilling Mayday call: “No thrust, not taking lift.” Within seconds, the aircraft lost the ability to climb and crashed into the BJ Medical College complex in the Meghaninagar suburb, less than a nautical mile beyond the runway. The wreckage was scattered across approximately 200 meters, with severe destruction both to the aircraft and buildings on the ground.
The human toll was catastrophic. The airline confirmed that 241 people on board lost their lives, with only one survivor emerging from the wreckage with serious injuries. On the ground, at least 19 fatalities were confirmed along with dozens of injuries, many involving students and staff at the impacted medical college.
Early findings revealed no evidence of a bird strike, and aircraft loading was deemed normal. Maintenance records indicated the aircraft had undergone a major check in 2023, with recent engine work completed earlier in 2025. Initial assessments suggested that neither pilot error nor simultaneous independent engine failures were likely causes, immediately pointing investigators toward more complex system-related explanations.
Data recovered from the flight recorders has since painted a deeply unsettling picture. According to preliminary analysis by India’s Aircraft Accident Investigation Bureau, the aircraft lifted off normally, reaching takeoff speed and transitioning into flight. Seconds later, both engine fuel control switches transitioned from RUN to CUTOFF in rapid succession—cutting fuel supply to both engines. In the cockpit voice recording, one pilot can be heard questioning the other about the cutoff, only to receive a denial, suggesting neither pilot intentionally moved the switches.
With both engines losing power, the aircraft deployed its Ram Air Turbine as systems began to fail. Attempts to restore engine thrust were initiated, with both fuel switches returning to RUN and signs of engine relight appearing in the data. However, the recovery came too late. The aircraft continued to lose altitude and impacted terrain shortly after a final Mayday call.
The investigation has expanded far beyond the immediate sequence of events. Authorities are examining potential system failures involving engine control electronics, including concerns related to the General Electric GENx engines and their electronic control units. A previously issued service bulletin had warned of possible microprocessor failures due to thermal stress, which could lead to loss of engine control under certain conditions.
Further scrutiny has also fallen on aircraft systems and historical reliability. Independent reports and whistleblower claims have highlighted a pattern of electrical and system anomalies throughout the aircraft’s operational life, including previous incidents involving power distribution failures, avionics faults, and even onboard fires. While no direct causal link has been established, these revelations have intensified calls for a broader examination of systemic risks.
India’s Directorate General of Civil Aviation ordered inspections of Boeing 787 fleets following the crash, though no immediate widespread safety deficiencies were identified. Meanwhile, legal and regulatory pressures have mounted, with proceedings in the Supreme Court of India seeking greater transparency and oversight of the investigation.
Adding to the complexity, additional data transmitted via ACARS prior to the crash indicated potential electrical and flight control system faults, though the flight crew appeared unaware of these issues. Investigators are also reviewing whether latent defects, combined with long-term operational and maintenance factors, may have contributed to a cascading failure scenario.
Despite extensive analysis, officials have repeatedly cautioned against drawing premature conclusions. The International Civil Aviation Organization has joined as an observer to ensure adherence to global investigative standards, while teams from the United States and the United Kingdom continue to support the inquiry.
Nearly a year later, the tragedy of AI-171 remains a stark reminder of how rapidly routine operations can turn catastrophic—and how modern aviation, despite its advancements, must continuously confront hidden vulnerabilities that may only reveal themselves under the most critical conditions.