The CEO of Air India sought to draw a line under rife speculation around the cause of last month's air disaster in Ahmedebad, saying the preliminary investigation had ruled out a mechanical cause for the crash.

Air India CEO Campbell Wilson confirmed that no mechanical or maintenance faults were found in the AI171 crash. The airline has checked its entire Boeing 787 fleet and promised full cooperation in the ongoing investigation.

Air India CEO Campbell Wilson said the Aircraft Accident Investigation Bureau’s (AAIB) preliminary report found “no mechanical or maintenance issues with the aircraft or engine,” reported Hindustan Times. Urging caution, he noted the report identified no cause nor made any recommendations and asked everyone to avoid “drawing premature conclusions.”