DOHA, Qatar (AP) — A senior official at an organization representing the majority of airlines worldwide says there is no specific timetable for implementing new tracking recommendations following the disappearance of a Malaysian aircraft with 239 people aboard in March.

Discussions about real-time tracking and airline safety feature in many sessions of the International Air Transport Association’s annual meeting, held this year in the Gulf-Arab nation of Qatar. That’s because passengers and even experts continue to wonder how an aircraft can just disappear without anyone knowing what went wrong.

Speaking at the conference Tuesday, IATA’s Safety and Flight Operations Senior Vice President Kevin Hiatt said it is hard to speculate at this moment how long it will take before the aviation industry implements the recommendations that will be presented by December.

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