New Delhi: The final investigation report into the tragic Air India Flight AI171 crash is expected to miss the internationally prescribed one-year deadline, as investigators continue examining critical engine components and other technical evidence linked to the disaster that claimed 260 lives. The delay underscores the complexity of one of India’s deadliest aviation accidents in recent history.
The Boeing 787 Dreamliner crashed shortly after take-off from Ahmedabad on June 12, 2025, while operating a scheduled flight to London. The accident resulted in the deaths of 241 people on board and 19 individuals on the ground, leaving only one survivor. Nearly a year later, investigators are still working to determine the exact sequence of events that led to the catastrophe.
According to reports, the Aircraft Accident Investigation Bureau (AAIB) has not yet completed a detailed examination of the aircraft’s engines and related systems. Components have reportedly undergone analysis in multiple countries, including the United States and France, as investigators seek to establish whether technical, mechanical, human, or other factors contributed to the crash.
Under international aviation rules established by the International Civil Aviation Organization (ICAO), accident investigators are expected to publish a final report within one year whenever possible. However, in cases involving complex technical investigations, authorities may issue an interim statement explaining the progress of the probe while continuing their work on the final findings.
Sources familiar with the investigation indicate that Indian authorities are preparing a detailed interim report rather than a final report ahead of the crash anniversary. The document is expected to provide updates on the investigation’s progress, potential contributing factors, and areas that require further examination. However, a timeline for the final report remains uncertain.
A major focus of the investigation has been the aircraft’s fuel control switches. Preliminary findings released last year indicated that both switches moved from the “RUN” position to “CUTOFF” shortly after take-off, interrupting fuel supply to the engines and causing a sudden loss of thrust. Investigators have been working to determine how and why the switches changed position during the critical phase of flight.
The investigation has involved cooperation between Indian authorities, the US National Transportation Safety Board (NTSB), aircraft manufacturer Boeing, and engine maker GE Aerospace. Additional testing and technical reviews are reportedly continuing as experts evaluate cockpit recordings, flight data, engine performance records, and fuel system behaviour.
Families of the victims and aviation safety experts have been awaiting the final report for answers about the circumstances surrounding the crash. Industry observers say the conclusions could have significant implications for aviation safety procedures, aircraft systems, pilot training, and regulatory oversight worldwide.
As the first anniversary of the tragedy arrives, the focus remains on completing a thorough and transparent investigation. While the final report may take additional months to be released, authorities maintain that a comprehensive examination of all available evidence is essential to ensure accurate findings and prevent similar accidents in the future.
