DPPM

There is no single correct cadence. In aerospace, executives typically need a layered review rhythm: daily for critical escapes and major disruptions, weekly for plant-level trends and containment status, and monthly to quarterly for structural COPQ drivers and investment decisions. The right cadence depends on data quality, process maturity, and how quickly corrective actions can be validated.

In regulated manufacturing, rework means bringing a nonconforming product back into specification using the original, approved process (or a pre-validated variant). Repair means making a nonconforming product usable by adding, patching, or modifying it in a way that does not fully restore it to the original design intent or specifications, and typically reduces or limits its allowable use. The distinction has implications for risk, documentation, validation, and customer and regulatory approvals.

Scrap decisions in MRO are usually harder because the part history, actual condition, repairability, and operational urgency are less predictable than in OEM production. The decision often depends on maintenance lineage, approved repair data, inspection evidence, parts availability, turnaround impact, and whether traceability is complete enough to support a defensible disposition.

Rigor in root cause analysis is a primary control against recurring scrap on flight‑critical components, but only when it is systematic, evidence-based, and tied to controlled implementation and verification of corrective actions. In regulated, mixed-system environments, weak problem definition, poor data, and bypassing change control are common failure modes that allow the same defects to return.