What counts as an NCR disposition?

The documented decision on a nonconforming item: use as is, rework, repair, return to supplier or scrap, with the technical justification and the signatures your procedure requires. Disposition time includes the engineering review before the decision is entered.

Why is the hours over the window negative?

The figure is signed: required hours minus available hours. A negative value means the batch fits the window with time to spare. Zero means the work exactly fills the window.

Where does the allowance percentage come from?

From your own batch records. Compare base disposition hours with the hours actually booked, including engineering review and corrective action, over several recent batches. Use that ratio instead of an industry figure.

Does this page decide whether an NCR is closed?

No. It sizes the labor a batch of dispositions needs. The technical decision and its justification come from your material review process and the procedures that govern it.

Nuclear & Critical Infrastructure Manufacturing calculator

Nonconformance Disposition Time Calculator

Size the labor to disposition a batch of NCRs before the review window closes. Base hours come from the report count and the disposition rate, then an allowance covers engineering review and corrective action.

What this calculator does

Hours to disposition a batch of nonconformance reports, including engineering review and corrective action, and whether the work fits the available window.

Formula used

Base disposition hours = nonconformance reports to disposition ÷ dispositions completed per hour
Review and corrective action hours = base disposition hours × engineering review allowance ÷ 100
Required disposition hours = base disposition hours + review and corrective action hours
Hours over the window = required disposition hours − available disposition hours (signed)
Window use = required disposition hours ÷ available disposition hours × 100, blank at a zero window

Inputs explained

Nonconformance Reports to Disposition: Open reports in this batch that still need a disposition decision.
Dispositions Completed per Hour: Blended review and sign-off rate from recent disposition records.
Engineering Review and Corrective Action Allowance: Extra time for engineering review, corrective action and rework.
Available Disposition Hours: Staffing hours this batch can use before the window closes.

How to use the result

Best suited to sizing a month-end NCR backlog, planning disposition staffing for a build, checking whether review fits before shipment.
Reports vary in complexity, so one with a root cause investigation runs slower than the blended rate. Excludes corrective action implementation, customer notifications and follow-up inspections.

Common questions

What counts as an NCR disposition? The documented decision on a nonconforming item: use as is, rework, repair, return to supplier or scrap, with the technical justification and the signatures your procedure requires. Disposition time includes the engineering review before the decision is entered.
Why is the hours over the window negative? The figure is signed: required hours minus available hours. A negative value means the batch fits the window with time to spare. Zero means the work exactly fills the window.
Where does the allowance percentage come from? From your own batch records. Compare base disposition hours with the hours actually booked, including engineering review and corrective action, over several recent batches. Use that ratio instead of an industry figure.
Does this page decide whether an NCR is closed? No. It sizes the labor a batch of dispositions needs. The technical decision and its justification come from your material review process and the procedures that govern it.

Last reviewed 2026-10-01.