Further delays in the return of Tiger Airways to the skies over Australia appear inevitable after the low-cost carrier began refunding customers booked to fly before August 4th.

Tiger had been seeking to re-launch on August 1st after being grounded by the Australian Civil Aviation Safety Authority (CASA) earlier this month.

However, it now appears the carrier will not be able to meet the necessary requirements to resume services by Monday.

Yesterday, CASA issued Tiger Airways a set of conditions which will form the basis for the airline resuming operations.

A number of these conditions must be satisfied before any flights can be undertaken.

“As a result of the progress made since July 1st, 2011, Tiger Airways Australia is confident it can comply with these conditions and expects to resume services in the near future,” the airline said in a statement to the Singapore Stock Exchange.

“As a consequence, Tiger Airways Australia will automatically refund all passengers booked to fly between August 1st, 2011, and August 4th, 2011 (both dates inclusive).

“A further announcement, concerning flights scheduled to operate from August 5th, 2011 and the re-commencement of sales, will be made at the appropriate time.”

CASA suspended the operations of Tiger Airways Australia on July 1st 2011 due to “serious and imminent” risk to air safety.

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