Philips received a complaint in which the customer stated that they noticed a burning smell during start up of the system, smoke was coming from equipment room.The sprinkler system came on, in the equipment room.Equipment room and exam room flooded.The system was not in clinical use, no patient or user was harmed due to this fire.
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Verified r-cabinet was source of short circuit/fire damage.The fire investigation provided a clear indication of the physical location where the fire started, namely at the power rail at the back of the r-cabinet.As a result, the most likely root cause is leakage of cooling liquid on the power rail.Tests in the quality lab have confirmed that leakage of cooling liquid on the power sockets can lead to tracking and the start of a fire.Philips inspected 20 systems in the field.For each of these systems a cooling liquid leak had been reported in the past.In these systems, we have seen the events that make up this root cause.We have seen residues of cooling liquid on the power rail and also tracking (break down of the insulator) in one components on the power rail philips investigated this complaint and came to the following conclusion: due to a leak in the detector cooling system, cooling liquid leaked outside the drip tray of the chiller.The liquid dripped onto electrical components in the r-cabinet located in the technical room, which lead to damage of the system and caused this thermal event.Philips initiated a field safety corrective action fco 72200384 which is targeted towards root cause cooling fluid leaking onto the connector.This field safety corrective action was filed to the fda on 2017mar22.Z-1820-2017, z-1821-2017.
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