Fire officers will be asked to work on their days off to check on the safety of 60,000 ageing residential blocks. The exercise, to be launched on Monday, follows reports of broken smoke doors and blocked fire exits at yesterday's fire in Shung Yan Street, Kwun Tong, in which four people were killed. Fire officers will be paid overtime to work on one of their days off to help maintain a 70-strong inspection team. The operation is scheduled to take three months. Residents' committees will be ordered to repair damaged fire hoses, replace expired fire extinguishers, keep smoke doors closed, clear blocked exits and remove unauthorised structures. Deputy Secretary for Security Chang King-yiu said officers up to senior fireman level had been asked to take part. 'The operation will cover the roughly 60,000 private, pre-1987 non-commercial blocks, which are mostly residential and domestic-commercial. 'It is hoped it will be completed by May. Based on the results we shall consider if there is a need to extend fire safety laws to domestic blocks.' For domestic blocks, firemen only act on complaints, although district offices hold seminars with residents on fire safety and building management. Fire Services Department Staff General Association chairman Tang Pang-sum said staff supported the deployment. 'We have been promised overtime payment and only nine-to-five work. 'The scheme is voluntary and we may ask principal firemen to help if the response from the lower-level staff is not good,' he said. Firemen are usually given two days off after a 24-hour shift. They will work on their second day off. But ousted legislator Fred Li Wah-ming said the move did not address the problem of building management. 'The Government should give more help to residents to form incorporated owners' committees. 'It is no use sending a liaison officer to explain the procedures only. Residents are not management experts and need concrete assistance.' Mr Li also called for laws to make it compulsory to form owners' committees. Secretary for Home Affairs David Lan Hong-tsung said the Government did not want to legislate to tell property owners what to do. 'Each property owner has the duty to keep their property in acceptable condition. One should not point fingers at the Government whenever troubles arise.'