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Post by sawb on Apr 6, 2023 14:51:47 GMT
"Minor delays between Acton Town and Heathrow Airport due to faulty tunnel ventilation equipment at Heathrow Terminal 5. GOOD SERVICE on the rest of the line."
Can anyone shed any light on what the fault is and why it's delaying the service?
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Post by Dstock7080 on Apr 6, 2023 17:29:34 GMT
You’ve almost answered your own question, the smoke/fire ventilation equipment, as also fitted on the Battersea extension, was operating in degraded mode. The equipment is constantly monitored and if defective requires the trains to stop, or be reduced. Operating procedures dictate only one train permitted between Hatton X and all terminals in degraded mode.
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