NEW DELHI, March 27 (Reuters) - India approved proposals worth $25 billion on Friday to buy transport aircraft, Russian S-400 missile systems and remotely piloted strike aircraft as it pushes its military modernisation and replenishes equipment after its conflict with Pakistan.

The service received the aircraft, designated H-60Mx, equipped with autonomy systems that allows it to fly without a human crew.

The close call occurred as a United jet flying out of San Francisco was approaching the Orange County airport and a Sikorsky helicopter "crossed in front of United's flight path," the FAA said.

Taiwan is seeing a surge of Chinese military planes near the island after a sharp drop in flights over the past two weeks had sparked discussions among observers.