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 i; not
[NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicate in last column] Present? Present? not
found
inaccessible
Outside air intake (if servicing supply air): Location:
r r
Accessible for inspection? Y ki N (explain):
r
louvers, grates, screens or weather cap
Exhaust outlet/louver (if servicing exhaust air): Location: 12t .'
Accessible for inspection? Y Vin N (explain): N
louvers, grates, screens or weather cap - fV
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 class board flex-duct wood
Accessible fire dam ers Est. total No. locations ins ected
Pipes/mechanical equipment, etc. located in shaft P
eturn air distribution (if servicing exhaust air):
Exhaust air inlet(s) Est. total qty J No. locations inspected 1
Specify shaft substrate (circle): metal fibrous glass lined metal masonry ~(
fi rous glass board flex-duct wood (/
Accessible fire dam ers Est. total No. locations ins ected /\/Q
Pi es!mechanica] equipment, etc. located in shaft
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WTC dust):
[ R:7p
NP not present; NF = not found; I = inaccessible; U =unknown
NYC-WTC 000133804
OCR can misread numbers and units. Confirm readings against the page image before using them.