Four former and current British Airways executives will appear in court next month over price-fixing on fuel surcharges which has already led to record fines for the airline.
British and US authorities have already fined BA around €340m for the offences, which took place between August 2004 and January 2006.
BA's current head of sales Andrew Crawley, former commercial director Martin George, former communications head Iain Burns and former UK and Ireland sales chief Alan Burnett could face prison sentences if convicted.
Mr George, Mr Burns and Mr Burnett resigned from the airline in 2006.
The world's major airlines are adding surcharges to their tickets owing to the soaring cost of kerosene, refined from crude oil.
Crude oil prices struck record highs last month above $147 per barrel but have since shed about 20% on fears of lower energy demand.
The four men are among 10 past and present BA staff who have been refused immunity under a plea agreement over the price-fixing between the airline and the US Department of Justice.
The OFT, the British watchdog, fined BA £121.5m for colluding with Virgin Atlantic Airways on fuel surcharges on at least six occasions in the 2004-2006 period.
Virgin was granted immunity after bringing the matter to the attention of the OFT.
BA was also fined 300 million dollars by the US Department of Justice for a similar agreement with Korean Air.