NYC 9/11 Public Portal Document
2.4 Passive Shaft/Duct Visual Inspection Form Page 1 of 1
Passive Shaft/Duct Identification:
Location: Area Served:
Surface Component
System Components Dust/ WTC not
[NOTE: if component not present (NP), not found (NF) or inaccessible (I) please
4
Debris Dust present
indicate in last column] Present? Present?
4 not
found
4
Inaccessible
Outside air intake (if servicing supply air): Location:
Accessible for inspection? Y N (explain):
louvers, rates, screens or weather ca
Exhaust outlet/louver (if servicing exhaust air): Location:
Accessible for inspection? Y__/" N (explain):
louvers, rates, screens or weather ca (
Supply air distribution (if servicing supply air):
Supply air outlet(s) Est. total qty No. locations inspected
Specify shaft substrate (circle): metal fibrous glass lined metal masonry
fibrous Blass board flex-duct wood
Accessible fire dam ers Est. total No. locations ins ected
Pipes/mechanical equipment, etc. located in shaft P
Return air distribution (if servicing exhaust air):
Exhaust air inlet(s) Est. total qty No. locations inspected I
Specify shaft substrate (circle): metal fibrous glass lined metal masonry A]
fibrous glass board flex-duct wood 7
Accessible fire dampers Est. total qty No. locations inspected tJ P
Pipes/mechanical equipment, etc. located in shaft P
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of R'TC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000133798
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