Static field route #1013

The duct leakage test failed and I need to find the leak

Sealing, Mastic, Tape & Leakage Testingyellow

Switch from “seal everything” to a leak investigation. Start at joints and openings, then corners, access doors, collars, flex connections, seams, and damaged gasket areas.

Open in Field Rescue Open category

Field checklist

Ask what test section failed and what pressure/limit applies.
Walk from fan/test connection outward by joint.
Check corners, access doors, takeoffs, flex collars, flange gaskets, mastic skips, screw holes, and damaged metal.
Mark suspected leaks and repair only approved locations/methods.
Recheck before retest.

Ask foreman

The leakage test failed on [section]. I found suspected leaks at [locations]. Do you want these repaired with [approved method] before retest?

Do not

Do not bury bad fit-up under mastic or randomly smear every joint without finding the actual leak path.

Why it matters

Failed tests need a methodical repair walk so the retest is not a guessing game.

Search words: leakage test failed pressure test failed find leak duct leaking retest mastic gasket access door collar leakage test failed failed pressure test find leak duct leak retest