Malaysia Airlines Flight MH370 went missing on March 8, 2014, while en route to Beijing, China, from Kuala Lumpur, Malaysia. The plane was carrying 239 people, including the crew.

Days after the disappearance, the Malaysian government said that it is likely that the co-pilot of flight MH370 spoke the last words to ground controllers before it vanished.

The last words heard by air traffic control in Kuala Lumpur were “goodnight Malaysian three seven zero.” Earlier it was reported that the last words were “all right, goodnight.”

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Ahmad Jauhari Yahy, chief executive of Malaysia Airlines, told a news conference that initial investigations indicated  Hamid had calmly said “all right, good night” shortly before the plane disappeared.

Officials say the sign-off to air traffic controllers came at 01:19 as it left Malaysian airspace.

“We don’t know when the ACARS was switched off after that,” Mr Ahmad Jauhari said. “It was supposed to transmit 30 minutes from there, but that transmission did not come through.”

The plane disappeared from air traffic controllers’ screens at 01:21, when it was over the South China Sea.

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Malaysia said that the plane was likely to have been diverted deliberately far off course.

Police searched the homes of Captain Zaharie Shah, 53, and Fariq, 27. A flight simulator was taken from the captain’s home and examined at police headquarters.

Investigators conducted background check of passengers, engineers and other ground staff who may have had contact with the aircraft before take-off.