There was work going on in Exhaust gas Boiler soot blow V/V. There was no stage but there was a ladder. Two persons were working on the v/v and after finishing, 2/E was called for checking. 2/E went over there and checked the direction of v/v it was ok. And on further checking bolts were found missing on one side flange. The tired fitter said the bolts were not fitting properly even after many attempts. 2/E took the v/v and some different sizes of bolts. When final bolt was being fitted, the ladder fell down 2/E fell inside.

Lesson Learnt :

Always safety first.
All safety precautions to be observed before
Attempting any work
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