Live · 20 Jul 2026
Control room copilot
Every alarm is enriched with what happened last time, how often it fires and a recommended next action, plus a field brief for whoever is dispatched.
Alarm queue
EGT-HI-04
Cylinder 4 exhaust temp above limit
Widnes · Engine E2 · 09:42 today
Cylinder 4 EGT has exceeded 620°C three times this week. The pattern matches valve-lash drift seen after the last top-end in April.
What happened last time
10 days ago, same engine, same cylinder. Cleared after a valve-lash adjustment during the Apr 24 shutdown.
Last action taken
Adjusted cylinder 4 valve lash to 0.45mm (last recorded value 0.61mm).
How often this fires
Fleet-wide, this code fires 4-6 times per month. On Widnes E2 specifically, 11 times in the last 90 days.
E2 EGT C4
634°C
E2 EGT avg
578°C
Load
94%
Gas methane
46%
Recommended next steps
- 1Derate E2 by 15% and hold until the next maintenance window
- 2Schedule top-end overhaul in the August low-flow window
- 3Raise a work order tagged 'Widnes-E2-topend-Aug' for the North West team