A Simple Maintenance Checklist Saves Time and Prevents Costly Errors

As both a practitioner and consultant, I have repeatedly seen how easy it is to overlook a detail that can cost hours of production, days of lost revenue, or even lives. From forgetting to add oil during a gearbox installation to installing a motor in reverse, these errors are common and preventable. A clear, concise procedure or checklist can eliminate most, if not all, of them.

I have been traveling to Mobile, Alabama, for the past several months, and each visit I have praised the same rental car company for its customer service. Last week, I was ready to do the same when a new car, marked as “five miles and brand‑new,” arrived at the counter. My pre‑departure checklist—fuel level, vehicle damage, and all mechanical systems—guides me through every trip. When I checked the fuel gauge, I noticed the protective clear film still covering the instrument panel. I asked the counter agent about their prep procedures; they were not forthcoming. After a 30‑minute drive through stop‑and‑go traffic and 15 miles on the interstate, I discovered a problem I hadn’t expected.

Opening the hood, I pulled the dipstick and found no oil at all. After double‑checking, the reservoir was completely dry. I was told to drive the car back to the airport 30 miles away, with the manager offering reimbursement for oil that I could purchase myself. When roadside assistance was called, the company eventually shipped me a replacement vehicle—another expensive fix. The new car, however, had oil and a removed protective film, though its fuel tank was still empty. This experience made it clear: a checklist that includes an oil check could have saved me hours, money, and the frustration of a last‑minute car swap.

In maintenance, the same principle applies. Many tasks are repetitive but not performed daily, making a robust planning function essential. Checklists should be embedded in job plans and task lists, with generic versions that can be reused across multiple sites—think of a technical library within your CMMS. A small space for technicians to initial each step ensures accountability, and management must audit these records to verify compliance. Without such processes, the repercussions can range from equipment damage to lost production—and, in the worst cases, safety incidents.

While many organizations claim to have checklists, the real difference lies in requiring their use and enforcing accountability. How does your organization ensure that maintenance procedures are followed? What mechanisms validate their usage?