When quality assurance systems fail, the consequences aren’t limited to product damage—they ripple into customer trust, financial losses, and long-term credibility damage. This blog explores a field-level QA/QC failure that should have been preventable.
The Incident: Scratched IGUs Delivered to High-Rise Development
A Canadian distributor shipped a batch of insulated glass units (IGUs) to a luxury residential tower project. Upon unpacking, several units had fine scratches and blemishes that weren’t visible in the warehouse but were glaring under natural light during installation.
The distributor’s QA system was based on random sample inspection at final pack-out. In this case, no sample from the damaged crate was inspected.
Where the System Broke Down
The inspection team checked 1 out of every 20 units—none from the affected lot
Surface defects were attributed to improper handling by subcontracted loading crew
No documentation existed to track whether crates were handled as per SOP
Fallout from the Oversight
34 units rejected on-site, triggering production delays
$67,000 in replacement and re-installation
Developer publicly criticized the distributor in a post-project review
Fixes Put in Place
Crate-Level Inspection Protocol Introduced
Instead of sampling by unit count, the team now samples one unit per crate to eliminate blind spots in packaging clusters.
Digital Photo Capture Required
QA inspectors must upload timestamped photos of the inspected units and crates before approval for shipment.
Third-Party Loading Supervision
For large projects, certified supervisors now oversee loading at the dock, with a checklist to confirm SOP compliance.
Takeaway
QA doesn’t fail because people stop caring—it fails because systems stop evolving. A robust QA process must be dynamic, crate-specific, and traceable all the way to the job site.
