INTRODUCTION
The preliminary report on the Air India Flight AI 171 accident presents an account that is as haunting as it is complex. The sequence of mechanical events—interrupted engine thrust, fuel cutoff, relight attempts, Ram Air Turbine deployment—unfolds against a backdrop of ambiguous cockpit interactions and procedural irregularities. As such, this incident transcends the bounds of a mere mechanical failure. It demands a holistic legal and psychological inquiry. At the heart of this investigation lies a chilling cockpit exchange: one pilot asks the other, “Why did you cut off?” The response: “I did not.”
This exchange, captured in the cockpit voice recorder, is not a throwaway moment. It is a fulcrum upon which many critical legal and operational questions pivot. It also illustrates a broader failure of situational awareness, crew coordination, and potentially, mental fitness. It is essential to recognize that under international aviation law and practice, particularly ICAO’s Annexes to the Chicago Convention, the responsibility for flight safety does not rest solely on the mechanical integrity of the aircraft or the efficiency of air traffic control. It resides, pivotally, in the cockpit.
At this stage of the accident investigation, which is preliminary, and therefore open to speculation, thought and analysis, as well as the divergence of expert opinions given in the media, it is emphasized that the following legal discussion is purely speculative and does not in any way impute liability, culpability or accountability to the aircraft and component manufacturers; the airline; the flight crew and the regulators.
THE QUESTIONS
From a legal standpoint, one must ask: What caused both engines’ fuel cutoff switches to be transitioned from RUN to CUTOFF in such close succession, within one second? Was this the result of a deliberate human action, an inadvertent physical mishandling, or a technical malfunction? If the former, what justified the action? If inadvertent, what cognitive, physiological, or psychological condition could have led to such a mistake?
If the pilots had survived, a prosecuting lawyer might pursue the following line of questioning:
- “Captain, can you describe your mental and physical condition in the hours leading up to the flight? Had you experienced any fatigue, stress, or medical symptoms prior to boarding?”
- “First Officer, what did you understand to be the reason for the engine shutdown during the takeoff phase? Did you observe any engine anomalies, warning lights, or audible alerts indicating imminent failure?”
- “To both crew members: Why was there a disconnect between your perceptions and the actual switch transition from RUN to CUTOFF on both engines? Did either of you touch the switches consciously?”
- “Were you both familiar with the Standard Operating Procedures (SOPs) governing in-flight engine shutdowns and relights? At what point did you realize that both engines had lost thrust?”
- “Was there a cross-checking protocol followed when handling the fuel cutoff switches? If not, why?”
- “Were there any disagreements or misunderstandings between you prior to or during takeoff?”
- “Had either of you reported feeling unwell or disoriented to the airline or medical personnel prior to duty?”
- “What was your most recent medical certification status and were any mental health screenings conducted as part of the recertification process?”
These questions are not speculative; they stem directly from the normative framework laid down by Annex 1 (Personnel Licensing), which prescribes the medical and psychological thresholds a flight crew must meet to be certified as fit for duty. Annex 1 mandates that pilots must not have any established medical history or clinical diagnosis of a mental disorder or disability that could interfere with the safe execution of flight responsibilities. This includes but is not limited to conditions such as depression, anxiety disorders, cognitive decline, or substance use disorders.
Moreover, the visual and data record confirms that the Ram Air Turbine (RAT) was deployed during the initial climb, indicating a loss of hydraulic power resulting from engine shutdown. RAT deployment is a last-resort mechanism and is not triggered in normal operations. The fact that both engines’ N2 values dropped below idle, requiring the RAT to take over hydraulic functions, underscores the sudden and complete nature of the power loss.
Another concerning element is the confusion displayed in the cockpit. The pilot who allegedly shut off the engines claims he did not. Is this a moment of cognitive dissonance? A lapse of memory? Or possibly a psychological fugue state under pressure? The inclusion of a psychologist in the investigation team is, therefore, not a procedural nicety, it is a forensic necessity. The psychologist’s role is to assess cognitive behavior under stress, evaluate communication patterns in the cockpit, and potentially uncover underlying conditions such as burnout, psychogenic amnesia, or panic response.
MY TAKE
This incident must also be seen in light of contemporary concerns about pilot mental health. While high-profile tragedies such as Germanwings Flight 9525 have brought attention to this issue, the aviation industry still struggles with the stigma associated with psychological disorders among pilots. Many pilots underreport their symptoms out of fear of losing their certification and livelihood. This results in a culture of silence that is incompatible with the risk profile of commercial aviation.
At this stage of the discussion, it is by no means suggested that the pilots of Flight AI 171 suffered from any mental illness or disability. However, as a general principle, it is proposed that aviation authorities worldwide adopt a more robust, proactive approach to pilot health, both physical and psychological. Medical certifications should be supported by periodic psychological assessments using standardized, validated tools. Additionally, airlines should establish confidential mental health reporting mechanisms and ensure that pilots who seek help are not penalized but supported through structured programs of recovery and reintegration.
Another line of analysis concerns human-machine interface. The fact that the aircraft’s Full Authority Digital Engine Control (FADEC) systems attempted to relight the engines is commendable, but such systems can only do so much. If human action—or error—triggers a critical sequence, the autonomy of recovery mechanisms may be too late to prevent disaster. Thus, cockpit design should include safeguards against simultaneous fuel cutoff of both engines, especially during takeoff. A dual-confirmation protocol—much like the “two keys” mechanism in nuclear command—might be warranted for such critical actions.
The legal liability of the airline also cannot be ignored. What training protocols were in place? Were the crew subjected to realistic simulator training replicating dual engine failure during takeoff? Did their training include human factors and stress response? Were there recent changes in flight rosters or duty hours that could have contributed to fatigue or reduced performance?
The question of accountability must extend beyond the cockpit. Airlines have a duty of care not only to their passengers but also to their crew. This includes ensuring that flight rosters are humane, that crew members are not flying under duress, and that they have access to mental health care without fear of stigma or reprisal.
There is also a compelling need to harmonize global standards. While ICAO Annexes provide a blueprint, their implementation is subject to the regulatory will of each State. Some jurisdictions may have more rigorous psychological screening than others. ICAO must consider adopting a globally enforceable framework for pilot mental fitness evaluation, with periodic reviews and mandatory confidential counseling options.
On the operational side, one must scrutinize the airline’s fuel management procedures, the maintenance of engine control systems, and the training given on emergency protocols. The fact that fuel samples from the bowsers and tanks tested satisfactory does not preclude the possibility of transient contamination or micro-debris affecting engine response. However, such theories remain speculative unless corroborated by lab analysis of the minimal fuel retrieved from the aircraft itself.
Ultimately, this accident lays bare the fragility of the human-machine interface and the need for a deeper, more compassionate understanding of pilot health. The investigation must proceed with technical rigor and moral empathy, balancing the demands of justice with the pursuit of systemic improvement.
It is worth reiterating that aviation law does not exist in a vacuum. It is informed by ethics, human factors, and evolving scientific understanding. As I have often argued in international fora, safety must not be reactive; it must be anticipatory. This means listening to the silences of the cockpit, interpreting the ambiguities of behavior, and designing systems not just for normal operations but for the limits of human endurance and cognition.
In closing, the Air India Flight AI 171 tragedy should be a clarion call to regulators, operators, and legal authorities alike. It demands more than mechanical solutions or blame allocation. It demands a reimagining of how we understand, support, and empower the humans at the heart of flight.
The investigation continues, as it must. But let us ensure that its findings are not just catalogued, but internalized. For in every cockpit exchange, in every procedural decision, and in every moment of silence, lies the opportunity to avert the next tragedy.
