sentences:  On 6 July, CASA announced that it would lodge a request for extension to the suspension until 1 August at the Federal Court in Melbourne, while CASA continued to investigate, after the investigation raised more questions into Tiger Airways Australia, and until CASA was satisfied that the airline "no longer poses a serious and imminent risk to air safety".Consumer regulators, such as the ACCC, warned Tigerair Australia that the airline needed to inform customers who purchased tickets about the uncertainty as to whether the airline would be flying from 9 July.Tigerair Australia suspended its ticket sales on 5 July, however the ACCC's chairman, Graeme Samuel, stated that Tigerair Australia's "lack of response until that point was far from satisfactory".