Experts investigating the AI-171 crash have ruled out factors such as weather conditions, pilots' competencies, and bird strikes, focusing on a possible electrical fault in the spotlight as a significant angle to consider.
Pilots have not been blamed for the crash, with doubts raised over potential electrical or software faults, especially given the in-flight shutdown of both engines and pilots' reactions.
Concerns have been raised about a 2018 FAA advisory regarding fuel switch mechanisms on Boeing models, although Air India did not act on it citing non-mandatory compliance at that time.
The investigation questions the physical position of fuel control switches in the crashed aircraft and dismisses theories of pilot misconduct or suicide, leaning towards an initial focus on faulty Honeywell-made switches or further underlying causes for the engine shutdown.