Five years ago, the flight vanished into the Indian Ocean. Officials on land know more about why than they dare to say.

1. The Disappearance

At 12:42 a.m. on the quiet, moonlit night of March 8, 2014, a Boeing 777-200ER operated by Malaysia Airlines took off from Kuala Lumpur and turned toward Beijing, climbing to its assigned cruising altitude of 35,000 feet. The designator for Malaysia Airlines is MH. The flight number was 370. Fariq Hamid, the first officer, was flying the airplane. He was 27 years old. This was a training flight for him, the last one; he would soon be fully certified. His trainer was the pilot in command, a man named Zaharie Ahmad Shah, who at 53 was one of the most senior captains at Malaysia Airlines. In Malaysian style, he was known by his first name, Zaharie. He was married and had three adult children. He lived in a gated development. He owned two houses. In his first house he had installed an elaborate Microsoft flight simulator. He flew it frequently, and often posted to online forums about his hobby. In the cockpit, Fariq would have been deferential to him, but Zaharie was not known for being overbearing.

In the cabin were 10 flight attendants, all of them Malaysian. They had 227 passengers to care for, including five children. Most of the passengers were Chinese; of the rest, 38 were Malaysian, and in descending order the others came from Indonesia, Australia, India, France, the United States, Iran, Ukraine, Canada, New Zealand, the Netherlands, Russia, and Taiwan. Up in the cockpit that night, while First Officer Fariq flew the airplane, Captain Zaharie handled the radios. The arrangement was standard. Zaharie’s transmissions were a bit unusual. At 1:01 a.m. he radioed that they had leveled off at 35,000 feet—a superfluous report in radar-surveilled airspace where the norm is to report leaving an altitude, not arriving at one. At 1:08 the flight crossed the Malaysian coastline and set out across the South China Sea in the direction of Vietnam. Zaharie again reported the plane’s level at 35,000 feet.

Eleven minutes later, as the airplane closed in on a waypoint near the start of Vietnamese air-traffic jurisdiction, the controller at Kuala Lumpur Center radioed, “Malaysian three-seven-zero, contact Ho Chi Minh one-two-zero-decimal-nine. Good night.” Zaharie answered, “Good night. Malaysian three-seven-zero.” He did not read back the frequency, as he should have, but otherwise the transmission sounded normal. It was the last the world heard from MH370. The pilots never checked in with Ho Chi Minh or answered any of the subsequent attempts to raise them.

Primary radar relies on simple, raw pings off objects in the sky. Air-traffic-control systems use what is known as secondary radar. It depends on a transponder signal that is transmitted by each airplane and contains richer information—for instance, the airplane’s identity and altitude—than primary radar does. Five seconds after MH370 crossed into Vietnamese airspace, the symbol representing its transponder dropped from the screens of Malaysian air traffic control, and 37 seconds later the entire airplane disappeared from secondary radar. The time was 1:21 a.m., 39 minutes after takeoff. The controller in Kuala Lumpur was dealing with other traffic elsewhere on his screen and simply didn’t notice. When he finally did, he assumed that the airplane was in the hands of Ho Chi Minh, somewhere out beyond his range.

The Vietnamese controllers, meanwhile, saw MH370 cross into their airspace and then disappear from radar. They apparently misunderstood a formal agreement by which Ho Chi Minh was supposed to inform Kuala Lumpur immediately if an airplane that had been handed off was more than five minutes late checking in. They tried repeatedly to contact the aircraft, to no avail. By the time they picked up the phone to inform Kuala Lumpur, 18 minutes had passed since MH370’s disappearance from their radar screens. What ensued was an exercise in confusion and incompetence. Kuala Lumpur’s Aeronautical Rescue Coordination Centre should have been notified within an hour of the disappearance. By 2:30 a.m., it still had not been. Four more hours elapsed before an emergency response was finally begun, at 6:32 a.m.

This report was published by The Atlantic. Full details can be found on, The Atlantic.com