Okay thanks, I thought a Company like Qantas would have some spare aircraft to call on, I guess they may even plan to have more on standby over the weekend by adjusting their schedules.
According to this news site it will be after hours during next week too.
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QANTAS says industrial action staged by its engineers will not ground aircraft, as a ban on overtime and out-of-hours call-outs comes into effect today.
Qantas' professional engineers will stage industrial action indefinitely to protest working conditions they claim may affect the safe operation of the airline.
The engineers' union, the Association of Professional Engineers, Scientists and Managers Australia (APESMA), says the move may ground a number of Qantas and Jetstar planes.
Bans on overtime and out-of-hours call-outs will commence at 5pm (AEDT) on today and last until 9am on Monday, the union says.
The action will re-commence on Monday at 5pm and will last until Tuesday at 8am and continue on the same daily pattern indefinitely.
Qantas said it had contingency plans in place.
"There will not be any disruption to our operations and I can assure customers that they can travel with confidence," Qantas corporate affairs manager David Epstein said in a statement today.
"Aircraft will not be grounded and safety will, as always, remain our top priority."
However, APESMA director Catherine Bolger said the industrial action would cause disruption to services.
"The industrial action may ... result in some Qantas and Jetstar planes not being allowed to fly, causing disruptions," Ms Bolger said.
Mr Bolger said all the professional engineers were asking for is proper recognition of their role.
"They also want management to address what is a serious issue of fatigue caused by long hours and after-work call-outs."
Qantas employs about 190 professional engineers in an workforce of 5,500 people.
The professional engineers form a small part of the airline's engineering workforce but must sign off on any significant maintenance work before planes are allowed to fly.
Ms Bolger said some professional engineers have been called to address complex issues with less than five hours sleep since their last shift.
A Qantas spokeswoman said the thrust of the enterprise bargaining agreement (EBA) negotiations has been about wages.
The union wants a 30 per cent increase over three years, she said, which Qantas has deemed "completely unreasonable".