An Air Zimbabwe Boeing 767-200, registration Z-WPF performing repatriation flight from Bangkok (Thailand) to Islamabad (Pakistan) with 2 passengers and 17 crew, was enroute at FL340 about 150nm northwest of Bangkok about to enter Myanmar's Airspace when the crew shut the left hand engine (PW4056) down. The aircraft turned around, drifted down to FL210 and returned to Bangkok for a safe landing about 90 minutes after departure.
The aircraft should have picked up about 180 additional passengers at Islamabad and carry them to Zimbabwe and South Africa.
The airline reported the crew received an abnormal indication for the left hand engine and shut it down as a precaution. The aircraft carrying 17 crew and 2 passengers returned to Bangkok. The aircraft was on its flight to Islamabad to pick up another 180 passengers returning to South Africa and Zimbabwe.