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:
~Ot=
Surface Component
System Components Dust/ NNTC l; not
(NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicate in last column) Present? Present?
4 not
found
4
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: 0,t
Accessible for inspection? Y t/ N (explain): y A.J
louvers, grates, screens or weather cap 1%.)
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 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_5— No. locations inspected
Specify shaft substrate (circle): meta fibrous-Klass lined metal masonry '/
i rous lass board flex-duct wood
Accessible fire dam ers Est. total No. locations ins ected N
Pi es'mechanical equipment, etc. located in shaft
NP
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WW'TC dust):
NP =no: .iresent; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000133641
OCR can misread numbers and units. Confirm readings against the page image before using them.