This paper presents a case study conducted in a chemical plant with a cogeneration facility, focusing on optimizing boiler shutdown timing to enhance availability and reliability and minimize downtime during annual inspections. The study addresses two key problems faced by the plant, namely scaling in the furnace and prolonged annual shutdown periods required for repairs, replacements, cleaning, and inspections. The assigned BiC promoter from a consulting firm took charge of implementing improvements and demonstrated effective leadership throughout the process. This paper outlines the approach adopted for each problem, the action points undertaken, and the corresponding results achieved.