Use HAZOP-style guide words to surface deviations before approving hot work near a fuel system.
Omar O Outfit Supervisor 01 Permit condition 02 Deviation 03 Action Hot work 20 sec The weld is quick, the permit exists, but the work area has changed since the morning gas test. Hot work accidents often start when the permit snapshot no longer matches the real condition. 2 conditions changed 35m pause beats incident HAZOP
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