Pakistan International Airlines (PIA) ATR aircraft had to make an emergency landing after facing some technical problems in one of its engines, the plane on the way from Karachi to Turbat on Saturday, reports said. Twenty passengers and staff were on board the plane. PIA Flight PK 501 in the form from Karachi to Turbat after half an hour the development failure in one of its engines stopped, while the plane back to Karachi made an emergency landing safely here. (IY)