Advantages of Good Communication Practice

Correct (as per instructions) product mix is produced instead of some wrong product  

Raw material feed is controlled and consumption can be well monitored Operating conditions are maintained for safe and eflftcient operations Preventive maintenance activities can be planned and executed when plant operators take suitable steps to empty out process reactors and clean them prior to maintenance work (especially from inside). 

Redundancy—It is useful to avoid mistakes. There were four reactors in the plant, and reactor no. 3 was to be stopped for maintenance work. The operator stopped the third reactor while counting from the exit end of the plant. Actually, it was the second one when counting from control room side, and it was not to be stopped. 

A clear instruction should have been as follows  

Stop the third reactor as counted from control room side which has green-coloured handrail (while all others had a black-coloured handrail) or which has a 15 HP motor for the agitator, while all others have 10 HP motor. This extra information is not necessary (it is redundant) but will prevent mistake. 

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