Which ESR field is where the operator/mechanic writes a brief description of fault?

• A. It describes the current state of the equipment (OPST)
• B. It is the 9-Digit code that identifies a part (NIIN)
• C. It is the brief description of the fault
• D. It is where the operator/mechanic writes brief description of fault

Answer: (D)

The field used to capture a fault description in an ESR is the one designated for the operator or mechanic to write a brief description of the fault. This space is specifically meant for succinctly noting what is wrong, under what conditions it occurred, and any immediate observations. Having a concise fault narrative here helps maintenance personnel quickly understand the issue and plan repairs without digging through unrelated data.

The other fields serve different purposes: one describes the equipment’s current operating state, and another holds the 9-digit national item identifier (part number). Those are about state and identity, not the fault narrative itself. Hence, the field that explicitly indicates where to write the fault description is the correct choice.