IMO Escalator Fire Shutter remedial works

The existing horizontal escalator fire shutter is inoperable. Three fire shutter specialist companies have reviewed the fire shutter. Two of the specialists advised that a like for like replacement is not feasible due to the age of the shutter, the absence of a known manufacturer capable of producing a replacement, and their limited experience with horizontal shutter systems such as the existing installation. Both specialists indicated that they could only proceed with the works if a complete design change was impl...