Incident Overview
On 16 May 2013, a Myanma Airways MA-60 aircraft (registration XY-AIQ, MSN-0808) overran the runway during landing at Monghsat Airport. The aircraft was operating a flight from Heho to Monghsat, carrying 4 crew members and 51 passengers. The accident occurred at approximately 11:48 local time.
Flight Details
The aircraft had earlier departed Yangon International Airport at 08:00 local time for Monghsat, with the captain assigning the first officer as the line training (command) pilot. After landing at Monghsat at about 09:25, passengers disembarked and boarded. The aircraft then flew to Heho, landing at about 10:40, where it refueled. At 11:10, the aircraft departed Heho for Monghsat with the first officer designated as pilot flying. The captain contacted Monghsat ATC for weather information. The aircraft climbed to 15,000 feet at an indicated airspeed of 200 knots. At 40 miles from Monghsat, the captain requested descent clearance, descending to 8,000 feet. After passing the transition level of 125, the crew set the Monghsat airfield QNH and performed the approach check.
Landing and Overrun
Weather at Monghsat was fine with visibility of 4-5 miles (8 km). At 3 miles from runway 12, the approach speed was 120 knots IAS. The aircraft first touched down on runway 12 at 11:47:59 local time with an IAS of 114 knots, vertical speed -288 feet per minute, and flap setting 30 degrees. During the landing roll, the first officer retracted the PIA (Power Lever Angle) to the GI (Ground Idle) position, but it remained above the ground idle position (36.8/36.6 degrees). After 18 seconds, the flap position changed to retract, and both engines' torque began to increase. The aircraft's indicated airspeed was unable to rapidly decelerate despite the crews applying braking. Both crews did not initiate the power lever reversing position. The aircraft overran runway 12 onto runway 30.
At approximately 11:48:33, while at 40 knots IAS, the aircraft struck a tree stump and crossed a water drainage gutter located 110 meters from runway 30. After impact, the aircraft turned 80 degrees to the left and came to rest.
Injuries and Damage
Cabin crews performed an emergency evacuation. One passenger suffered a serious injury (back pain), and another suffered a minor injury (shoulder joint injury). The remaining 53 occupants survived. The aircraft sustained substantial damage: the left main landing gear and nose landing gear strut were broken, left engine propeller blades broken, left wing tip broken, and lower fuselage frame dents.