Anthonius Gunawan Agung, 21, was the only person left in the control tower at the Air Traffic Tower of Mutiara Sis Al Jufri Airport in Palu when the magnitude-7.5 quake struck the coastal city on Friday.
His colleagues had run for their lives when the tower started to sway and walls started to crack, but Mr Agung stayed to make sure Batik Air Flight 6321, which was on the runway at the time, took off safely.
Yohannes Sirait, spokesman for Air Navigation Indonesia said the decision cost him his life, but potentially saved hundreds of others.
“He gave clearance for this flight, and if he left his post before the plane was airborne, hundreds of people inside the plane might be in danger,” he said.
Soon after the plane took off, the tower trembled, and Mr Agung decided to jump off the fourth floor of the tower, thinking the building could collapse any time.
He broke his leg and suffered internal injuries in the fall.
His colleagues rushed him to the nearest hospital before a doctor recommended he be taken out of the city to get better treatment.Photo: Anthonius Gunawan Agung stayed in the collapsing tower to ensure the plane took off safely. (Supplied: Indonesia Airnav)
“We prepared a helicopter from Balikpapan in Kalimantan to take him to a bigger hospital in another city,” Mr Sirait said.
“Unfortunately we lost him this morning before the helicopter reached Palu.