Thai airways 311 in turboprop flight simulator

Thai Airways International Flight 311, an Airbus A310-304 aircraft registered as HS-TID, crashed on July 31, 1992, while attempting to land at Kathmandu's Tribhuvan International Airport. The flight originated from Bangkok's Don Mueang International Airport and was scheduled to arrive at 12 Nepal Standard Time (07 UTC). After entering Nepalese airspace, the pilots contacted air traffic control (ATC) and were cleared for an instrument approach from the south called the "Sierra VOR circling approach" for Runway 20. However, the aircraft was then cleared for a straight-in Sierra approach to Runway 02 and told to report leaving 9,500 ft (2,896 m). The captain asked numerous times for the winds and visibility at the airport, but ATC merely told him that Runway 02 was available. The captain asked four times for permission to turn left, but after receiving no firm reply, he announced that he was turning right and climbed the aircraft to flight level 200. The controller handling Flight 311 assumed from the flight's transmissions that the aircraft had called off the approach and was turning to the south, so he cleared the aircraft to 11,500 ft (3,505 m), an altitude that would have been safe south of the airport. The flight descended back to 11,500 ft, went through a 360° turn, and passed over the airport northbound. Seconds before impact, the ground proximity warning system (GPWS) activated, and sounded alarms warning the crew of the imminent collision with the mountains. First Officer Boonyayej warned Captain Suttimai and urged him to turn the aircraft around, but possibly due to his frustration from the communications with ATC, Suttimai erroneously stated the GPWS was just giving false reports. The aircraft crashed into the side of a mountain 37 kilometers (23 mi) north of Kathmandu, killing all 113 passengers and crew members on board. The crash site can still be seen in Langtang National Park on the trek from Ghopte to the Tharepati Pass.