Due to the IT outage, I noticed that VA896 departure out of SYD has been delayed to 00:55 (outside curfew?)
It is well outside, but the Minister for Transport's delegate can approve dispensations.
Normally, aircraft should have received pre-curfew taxiway clearance, yet this may not be possible for VA896. More than a year ago, I remember jb747 making the point that if an aircraft received this clearance at say 2243 hours, it could in theory depart the aircraft much later.
(hard to see how tonight includes the first of the three circumstances: supposedly, dispensations must satisfy all three to be granted):
Curfew Dispensations
In exceptional circumstances,an operator may apply to the Department for approval to take-off or land during the curfew (a curfew dispensation). All requests for permission to take-off or land are made through a Curfew Duty Officer who will assess the situation in relation to a set of criteria which must be met before permission to take-off or land can be granted.
Three primary criteria must be met for permission to take-off or and at Sydney Airport:
1.The circumstances are immediate in origin(e.g.they occurred at the time of preparing to depart from, or commencing a flight to arrive at, Sydney Airport.
2.Of such character that they could not reasonably have been foreseen(e.g. mechanical fault, passengers who fail to board requiring baggage offload etc.)
3.Not reasonably able to be met by alternative arrangements(e.g. flight cancellations, using other aircraft, or other modes of transport).
When all three of these criteria are satisfied, the following matters may be taken into account to determine whether permission to take-off or land should be granted:
By what margin the movement falls into the curfew period (i.e. whether shortly after 11.00pm or shortly before 6.00am).
Whether the cause of the delay is within the control of the operator.
The noise level of the aircraft.
Number of passengers involved.
The severity of the likely hardship.