Standard Operating Procedure: Full Body Harness Inspection

Maintaining the integrity of fall protection equipment is a critical safety requirement for all personnel working at heights. A full body harness acts as the final line of defense against fatal injury; therefore, it must be inspected before each use and by a competent person at least every 12 months. This procedure outlines the mandatory inspection protocol to identify signs of wear, chemical degradation, heat damage, or structural failure. If any component shows signs of compromise, the harness must be immediately tagged "Out of Service" and removed from the job site.

Pre-Inspection Requirements

• Ensure the harness is clean and laid out on a flat, well-lit, non-abrasive surface.
• Have the manufacturer’s inspection guide available for reference.
• Check the equipment label for the date of manufacture and previous inspection logs.

Step-by-Step Inspection Checklist

1. Webbing Inspection

• Run your hands along the entire length of the webbing, feeling for changes in thickness or texture.
• Check for frayed edges, broken stitches, or pulled fibers.
• Inspect for "burns" (glassy surfaces), which indicate heat or friction exposure.
• Look for discoloration or stiffening, which suggests chemical contamination.
• Inspect the webbing for cuts, nicks, or chemical burns that exceed 10% of the webbing thickness.

2. Hardware and Buckles

• Verify that all buckles (friction, mating, or quick-connect) engage smoothly and "lock" audibly.
• Check for distortion, cracks, pitting, or rust on D-rings and adjustment buckles.
• Ensure D-rings are free to rotate and are not obstructed by webbing or debris.
• Check that tongue buckles have no deformed or bent tongues.
• Ensure grommets are firmly set and show no signs of tearing or pulling out from the webbing.

3. Stitching and Load-Bearing Points

• Inspect all "box-X" stitch patterns (where webbing is joined). Ensure no threads are broken, pulled, or missing.
• Check for localized thinning or "puckering" of the webbing around stitches, which indicates the harness has been previously deployed in a fall.
• Ensure there is no abrasive wear on the thread itself.

4. Impact Indicators and Labels

• Locate the manufacturer-provided "Impact Indicator" (often a folded, stitched tab). If this has deployed or is visible, the harness must be retired immediately.
• Verify the legibility of the product labels, including the serial number, date of manufacture, and weight capacity.
• Ensure the user instruction manual is present and accessible.

Pro Tips & Pitfalls

• The "Fold-Over" Test: To inspect hidden sections of the webbing, bend the webbing into a "U" shape. This exposes cuts or broken fibers that are not visible when the harness is lying flat.
• Avoid Marker Abuse: Never write on the harness webbing with an ink marker; chemicals in the ink can degrade synthetic fibers over time. Use the designated identification tag.
• The Pitfall of "Cleanliness": Do not use industrial solvents or harsh detergents to clean a harness. Use only mild soap and water. Harsh chemicals are the #1 cause of hidden structural degradation in synthetic webbing.
• Document Everything: If you are the designated competent person, maintain a digital log of all inspections. Regulatory bodies require proof of these inspections during safety audits.

Frequently Asked Questions

Q: How often should a harness be retired regardless of its condition? A: Most manufacturers recommend retiring a harness every 5 years, even if it passes every inspection. Always consult the specific manufacturer’s user manual, as some have a mandatory "shelf-life" limit.

Q: Can I use a harness that was involved in a fall if it "looks" fine? A: Absolutely not. Any harness involved in a fall arrest must be removed from service immediately and destroyed. Internal fibers may be stretched beyond their elastic limit, compromising the harness’s ability to survive a second fall.

Q: What do I do if I find a small, minor nick in the webbing? A: If in doubt, tag it out. Any degradation in load-bearing webbing is a potential failure point. In the field, there is no such thing as a "minor" cut; if the integrity of the weave is breached, the harness must be removed from service.

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