How should a university laser lab track downtime?

Question

Accepted Answer

Log downtime as an event, not a vague note that the machine was broken.

Log downtime as an event, not a vague note that the machine was broken. Record when the issue began and was detected, observable symptoms, safe shutdown status, affected jobs, initial triage, responsible owner, parts or service delays, restoration time, validation performed, and whether the problem recurred. Separate planned maintenance from unplanned outage time. A downtime event card, the timeline it measures, and the categories it uses On the left, an event card with eleven blank fields: began, detected, symptoms, safe shutdown status, affected jobs, initial triage, owner, parts or service delays, restored, validation performed, and recurred. On the right, eight failure category chips: exhaust, cooling, optics condition, motion, software, utilities, user damage and unknown. Below them, a split marker shows planned maintenance and unplanned outage are tracked separately. Under the card, a timeline runs from began to acknowledged to repaired to restored. The span from began to acknowledged is labeled time to acknowledge, the span from acknowledged to repaired is labeled time to repair, and a bracket from began to restored is labeled total downtime. A footer says to weigh the data with costs and service terms for staffing, spare-parts, service-contract and replacement decisions. One event, one card Failure category Began Detected Symptoms Safe shutdown status Affected jobs Initial triage Owner Parts, service delays Restored Validation performed Recurred? exhaust cooling optics condition motion software utilities user damage unknown Tracked separately Planned maintenance Unplanned outage time to acknowledge time to repair began acknowledged repaired restored total downtime Weigh it with costs and service terms for staffing, parts and replacement decisions. Log downtime as an event, not a vague note that the machine was broken. Categories are for sorting, not for unqualified diagnosis. The spans show what to measure; the page gives no target values. Use consistent failure categories such as exhaust, cooling, optics condition, motion, software, utilities, user damage, and unknown—without encouraging unqualified diagnosis. Measure both total downtime and time-to-acknowledge, time-to-repair, and canceled capacity. Review these records alongside costs, parts inventory and service terms when you make staffing, spare-parts, service-contract and replacement decisions.