Maintenance technicians affix rejection stickers to components that fail inspection during routine service. The adhesive label provides an immediate visual cue that the part must be removed from the operational line and routed to the quarantine area, preventing accidental re‑installation and reducing the risk of downstream failures. By marking each rejected item with a unique identifier, workshop staff can quickly match it to the corresponding work order, update the maintenance log, and trigger the procurement of a replacement without searching through piles of mixed parts. The stickers also serve as a compliance record for auditors, showing that the organization follows a disciplined non‑conformance handling procedure. In busy plant environments, this simple labeling step streamlines the hand‑over between the service crew and the spare‑parts warehouse, ensuring that only approved components return to service. When a faulty module is later repaired, the same stickers can be removed and the part re‑qualified for reuse, closing the loop between fault detection and asset restoration.