Official reports have confirmed that the Transport Workers Union is all set to question employees of budget-airline JetStar in Vietnam over alleged safety breaches that have been reported on the part of the carrier.

As shared by the Civil Aviation Administration of Vietnam, safety rules have been breached by Jetstar Pacific Airlines, which is part-owned by Qantas.

Among the potentially dangerous and hazardous practices recognized by the authority was the removal of a defective anti-icing pipe which, instead of being replaced by a new one, was simple welded and fitted back in the airplane, that too by an unauthorized contractor.

As confirmed by TWU, the body has been investigating the Qantas group over these safety breaches for many months now, and has requested a meeting with all the delegates and employees of the company in Vietnam.

"The unions want to investigate how a Qantas subsidiary is behaving overseas and whether or not they are flouting international aviation safety laws", TWU spokesman Tony Sheldon said.

No comments by either JetStar or Qantas have been shared on the development yet.