It has been my experience that the good operators who do their homework properly and have a proper business plan and don't under capitalise are ably assisted by CASA when making ammendments to their AOC. I also have acquaintances in the business who experiencer nought but grief in similar dealings but the difference is always their attitude and the number of NCNs at the previous audit. Before making a firm decision about adding an aircraft or even applying for an initial AOC, people should speak to CASA and get their requirements, time frames, and costings in writing before taking the next step. Antone who has been so stupid as to outlay money, sign leases etc before doing this deserves to lose their money.