Is a REC required during normal operations?

The assertion that a record of equipment calibration (REC) is not required for routine replacements during normal operations is accurate because routine maintenance tasks often involve standard procedures that are governed by established protocols and regulations. In many circumstances, these routine tasks are performed under predictable conditions where the risk factor is controlled and manageable.

For example, activities like changing filters, replacing O-rings, or conducting visual inspections do not usually necessitate detailed documentation because they are performed regularly and follow established guidelines that ensure safety and functionality. The redundancy built into these operations minimizes the need for extensive records that would be more critical in non-routine or high-risk maintenance tasks.

It's important to understand that while routine tasks may not require a REC, any significant maintenance or modifications would still necessitate documentation for safety compliance and traceability. This helps maintain the integrity of the diver life support system, but it typically falls outside the realm of standard daily checklists and simple replacements.