What happened
On 29 May 2022, a Tara Air Twin Otter (9N-AET) was scheduled for several flights between Pokhara and Jomsom. Due to earlier weather-related closures at Jomsom Airport, several flight plans were adjusted. During the morning operations, a Summit Air LET-410 (9N-AKZ) departed Pokhara first, followed by another Summit Air LET-410 (9N-AMG), and finally the Tara Air flight, designated TRA197. The Tara Air aircraft departed Pokhara at 0410 UTC carrying 19 passengers and 3 crew members.
Prior to takeoff, the pilot expressed hesitation regarding the flight due to weather reports from the preceding aircraft indicating unfavorable conditions for VFR flight near Tatopani. However, following communications with other aircraft and pressure from ground staff or passengers, the flight proceeded. After departing Pokhara, the aircraft climbed through 12,000 feet and approached Ghodepani. Upon contacting Jomsom Tower, the crew was informed of significant southwesterly winds of up to 30 knots.
Flight data and cockpit recordings indicate the crew was attempting to navigate through clouds while trying to maintain visual contact with the terrain. Despite the pilot's expressed discomfort with the weather, the flight continued. The aircraft eventually struck rocky terrain at an altitude of 4,050 meters at Sanusare Mountain. The impact resulted in 22 fatalities, as there were no survivors.
Findings
- The aircraft was operating in conditions that were difficult for VFR flight due to cloud cover and high winds.
- The pilot was attempting to navigate through clouds to find brighter areas while the Terrain Avoidance and Warning System (TAWS) was inhibited.
- There were reports of external pressure on the pilot to commence the flight despite unfavorable weather reports from preceding aircraft.