Qantas’ final repair bill for the Airbus A380 damaged in Singapore in 2010 will be A$139 million ($143.3 million), more than one-third the list price for a new aircraft.

The aircraft—VH-OQA—is set to fly from Singapore to Sydney on April 21, with revenue service resuming later in the month, says the Australian operator. The repaired aircraft currently is undergoing final tests.

VH-OQA suffered an uncontained engine failure after takeoff from Singapore on Nov. 4, 2010, resulting in major damage. The A380 made an emergency landing and has been grounded for repair ever since.

Investigators discovered cracks in faulty oil pipes in the failed Rolls-Royce Trent 900 engine, which caused oil leaks and an engine fire. Following inspections of Trent 900s operated by Qantas and other airlines, some engines were repaired or replaced.

The entire repair cost, which a Qantas spokesman says is covered by insurance, is more than a third of the current $389.9 million list price of an A380, although as an early A380 buyer Qantas would have paid a lot less for its Airbus widebodies. The final cost is slightly more than the A$135 million Qantas previously estimated.