Through the pain of losing her left leg below the knee, Cherry Chan Lok-yee remained calm enough to give rescuers her husband's pager number. The 26-year-old businesswoman made the plea to contact her husband while en route to Tuen Mun Hospital in a Government Flying Service S-76 helicopter. Ms Chan was one of 27 people hurt in yesterday's collision between a high-speed catamaran and a vehicle ferry north of Lantau. Winchman Patrick Fok Wai-fung said: 'She was very tough and kept calm. On the way to the hospital we asked her questions and she understood. She gave me her husband's pager number and I gave it to a policeman at the hospital.' Ms Chan, a merchandiser who travels to Zhuhai every week, was given gas to ease the searing pain. A fellow passenger had earlier given her emergency first aid to stem the bleeding. Surgeons said it had not been possible to try to re-attach her severed leg. Ms Chan had a window seat on the left side of the ferry next to businessman Siu Kin-kwok, 40, one of the other passengers taken to hospital by helicopter. After the crushing impact, Mr Siu said Ms Chan crawled her way out of the debris and was crying for help. Another passenger, Yang Wai, had looked out of his upper deck window to see the vehicle ferry fewer than 10 metres away. 'When I realised it was ramming us, I heard our ship sound the horn three times. Then there was a big bang. All the passengers were thrown out of their seats and there was screaming everywhere,' he said. Another said he had seen a man thrown three metres out of his seat after the ferry bow ripped into the catamaran. Most of the injured, 19 men and eight women, suffered bruising, cuts and head injuries. Seven remained in Tuen Mun Hospital last night. Some passengers complained about the quality of lifejackets and that no one showed them how to put them on. Lu Dong-pei, spokesman for Chu Kong Shipping, said it had a 40-strong fleet sailing between Hong Kong and about 20 towns and ports in Guangdong. 'There are more than 100 services each day and in percentage terms our accident rate cannot be said to be high,' he said.