On 20ᵗʰ February, 2012 M/s PIAC Flight PK-352 Boeing 737-300, Heg # AP-BEH, operating from Karachi to Islamabad via Quetta, landed at Quetta International Airport, Quetta. After landing on Runway 13L, severe vibrations were observed from under carriage area which increased gradually. ATC also reported smoke from left side. Aircraft was stopped on the runway centre line at 10000 ft distance. All passengers were disembarked through stairs and carried to terminal building area. On post flight, "Torsion Links" of Left Landing Gear and Shimmy Damper assembly were found broken along with 01 inboard tyre burst. A number of small metal pieces of Shimmy Damper and Torsion Links were found along with severe rubbing marks of tyres on the runway.
