Static field route #19314

What do I do when a pan-deck anchor hole blows out?

Hanger Systems, Rods, Straps, Trapeze & Anchors⚠️ CHECK BEFORE YOU FIXField answer expansion

📖 Verified core answer

A blown-out pan-deck hole means the anchor no longer has reliable bite. Stop using that hole and switch to the approved deck attachment for that substrate.

Open in Field Rescue Open category

Field verification checklist

Do not load the rod in the blown-out hole.
Identify whether you are in solid concrete, lightweight fill, pan deck, or steel.
Check approved anchor schedule/substrate note.
Inspect nearby deck profile before choosing a new attachment.
Document repeated blowouts for foreman/GC direction.

Ask foreman

The pan-deck hole at [location] blew out and will not hold the anchor. I checked the deck profile. Do you want an approved deck screw/top-of-flute attachment or a new support location?

Text to foreman

Route options

AMake the field correction only if it is within your assignment and the approved method.

BHold and document the condition if the fix affects support load path, structural steel, seismic restraint, life safety, another trade, or inspection.

CBring the foreman/detailer the location, what you checked, and what decision you need before loading, cover, startup, or rework.

Do not do this

Do not pack an oversized blown-out hole with random sealant, washers, or hope.

Why this matters

A bad deck attachment can let the hanger slip after the duct is loaded, pressurized, or vibrated.

Final verification

Use this as field training guidance. Final direction still comes from the foreman, approved drawings, project specs, manufacturer installation instructions, employer safety policy, structural/seismic detail, and AHJ/code requirements.

Search helpers: pan deck anchor blowout fluted metal deck lightweight concrete drop in anchor sammy screw