Six months after the devastating Air India tragedy that claimed 158 lives, the investigation remains mired in ambiguity. British aviation specialists have publicly identified six critical unknowns that must be resolved to prevent future disasters. These gaps in knowledge, they argue, are not academic but represent tangible risks to global air safety.
The first question concerns the flight's final moments. Data recorders indicate an erratic descent profile, yet cockpit voice recordings are partially degraded. Without a clear sequence of crew actions, experts cannot determine whether human error or technical failure precipitated the crash. "We need to know if the pilots were fighting a failing system or if the system was fighting them," said Dr. Alistair Finch, former head of the UK Air Accidents Investigation Branch.
Second, the structural integrity of the aircraft's tail section is under scrutiny. Metallurgical tests revealed microscopic fatigue cracks in a critical mounting point, but investigators remain divided on whether these cracks were pre-existing or occurred during impact. "If these cracks predated the crash, then thousands of aircraft with similar design histories may pose a hidden risk," warned Dr. Helena Vance, a materials scientist from Imperial College London.
Third, the response of the onboard flight control software is opaque. The aircraft's fly-by-wire system logged a series of uncommanded inputs moments before the loss of control. However, software audits have not been made public. "Without full code disclosure, we cannot rule out a latent software bug that could reappear," said Professor Raj Patel, a cyber-physical systems expert at Cambridge.
Fourth, Maintenance records show a troubling pattern: the aircraft had undergone a major overhaul three weeks prior, with several components replaced. Yet the work logs are incomplete. "We see a correlation, not causation, but the missing records are unacceptable. Every bolt replaced needs to be traceable," stated Captain Emily Stone, a veteran Boeing 787 pilot and safety consultant.
Fifth, the human factors element. The crew had logged 28 consecutive hours of duty before the accident, with minimal rest. While within regulatory limits, fatigue science suggests that performance degrades significantly after 20 hours. "We are flying crew to the edge of exhaustion. The current duty regulations are based on politics, not physiology," argued Dr. James Whitfield, a sleep researcher at Oxford.
Finally, the accident site itself suffers from incomplete evidence recovery. Some electronic components were found scattered over a wide area, suggesting a possible in-flight disintegration. But a full grid search was hampered by terrain and weather. "We may never know exactly what broke off first, and that uncertainty could mask a systemic design flaw," cautioned the AAIB's Dr. Finch.
These six questions, according to the experts, are not merely academic. They map directly onto known failure modes in aviation history: from the Comet to the 737 MAX. The insistence on full disclosure is not about blaming Air India or the manufacturer. It is about the physics of metal fatigue, the chemistry of jet fuel, and the biology of human endurance. The answers exist somewhere in the data, the wreckage, and the records. Withholding them is a gamble with lives.
Transparency is not a bureaucratic nicety. It is a safety critical parameter. The aviation industry operates on a foundation of shared learning. When a door closes on an investigation, it does not just silence questions. It holds a mirror to our willingness to protect the flying public.
