A Perth man has pleaded guilty after downing a bottle of vodka at Auckland Airport and groping the breast of a female passenger on his Qantas flight home. The New Zealand Herald reports that Milinda Gunasekera, 32, was flying home from a holiday in Chile on October 29 and was changing flights at Auckland Airport for the final leg of his trip. However, after downing a bottle of vodka in the airport toilets his plans to get home soon went awry. Milinda Gunasekera was flying from Auckland Airport to Perth after a holiday in Chile . The Qantas flight was taxiing to the runway when the alleged incident with a female passenger took place. the West Australian resident, was originally accused of indecent assault and threatening to kill - offences carrying a maximum of seven years in jail. But after the file was reviewed by Crown law, the charges were amended. Mr Gunasekera will return to New Zealand in June to be sentenced. The Western Australian resident downed a bottle of vodka in the airport toilets . Gunasekera‘s lawyer John Munro said his client could not remember anything of what happened at all. The court heard that the day after the incident the defendant was suffering ‘probably the worst hangover of his life’ after spending the night in the cells. ‘He's feeling really embarrassed by what he did,’ Mr Munro said. He then allegedly groped a female passenger's breast as his Qantas flight was taxiing to the runway . Since the incident, Mr Gunasekera admitted he was an alcoholic and needed help. In that time he as attended a residential rehabilitation programme, which he paid for himself. He has not drunk since and was now feeling much healthier his lawyer said.
Milinda Gunasekera was flying home from a holiday in Chile .
He was changing flights at Auckland Airport for the final leg of his trip .
The 32-year-old downed a bottle of vodka in the airport toilets before flight .
Qantas flight was taxiing to the runway when the alleged incident occurred .
Afterwards he suffered ‘probably the worst hangover of his life’ in the cells .
Mr Gunasekera will fly back to New Zealand to be sentenced in June .