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
rNOTE: 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:
Accessible for inspection? Y N (explain):
louvers, grates, screens or weather cap
Exhaust outlet/Iouver (if servicing exhaust air): Location:
Accessible for inspection? Y N (explain):
louvers, grates, screens or weather cap
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 glass board flex-duct wood
Accessible fire dampers Est. total qty No. locations inspected
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
Specify shaft substrate (circle): metal fibrous glass lined metal masonry
fibrous glass board flex-duct wood
Accessible fire dampers Est. total qty No. locations inspected
Pipes/mechanical equipment, etc. located in shaft
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WTC dust):
NYC-WTC_000140023
OCR can misread numbers and units. Confirm readings against the page image before using them.