Wamena is the biggest city in the world completely depending on supplies flown in by air, as there's no road leading to the Baliem valley. Air cargo capacity is in high demand and it was only in 2010 that jets started to serve Wamena. PK-YRZ was the 1st 737 to land in Wamena. It was delared damaged beyond economical repair (BER) after a hard landing in Wamena on May 20, 2013, and broken up in due course.