The German air traffic control authority has urged the aviation industry to develop technology that ground staff could use in an emergency to take remote command of a plane, a principle which might help prevent a repeat of the Germanwings crash last month.

Investigators believe co-pilot Andreas Lubitz locked his captain out of the cockpit and deliberately crashed the Germanwings plane into a French mountainside on March 24, killing all 150 people on board.

¡°We have to think past today¡¯s technology,¡± Klaus Dieter Scheurle, head of the Deutsche Flugsicherung air traffic control authority, said at a press conference on Wednesday.

Such a system could be used in an emergency on the ground to take remote control of a passenger plane and safely land it, he said.

¡°I wouldn¡¯t say it¡¯s the simplest solution, though,¡± he said, adding any such technology was likely to come only in the next decade.

Pilot associations are skeptical.

German pilots¡¯ union Vereinigung Cockpit said remote control could be open to abuse.

¡°We also have to ask whether such a solution would really be an improvement, after all it¡¯s the pilots who are sitting in the cockpit and they¡¯re the ones with all the information,¡± VC spokesman Markus Wahl said.

The British Airline Pilots¡¯ Association also urged caution.

¡°We must act with careful consideration to ensure new safety risks or concerns are not created, such as those raised by the vulnerability of any form of remote control of a passenger aircraft,¡± a spokesman said.

Since the Germanwings crash, European airlines have implemented a rule that two people must be in the cockpit at all times, and Germany has set up a task force with the aviation industry to consider changes to medical and psychological tests for pilots.