NYC 9/11 Public Portal Document
2.4 Passive Shaft/Duct Visual Inspection Form
Page 1 of I
Passive Shaft-Duct Identification: 7
Location:
Area Served:
System Components Surface Component
(NOTE: if component not present (NP), not found (NF) or not
inaccessible (1) please Debris Dust
indicate in last column] present
Present? Present? not
found
Outside air intake (if servici ng supply a i r): Location: inaccessible
Accessible for inspection? Y I\ (explain)-
louvers, grates, screens or weather ca
Exhaust outlet/louver (if servicing exhaust air): Location: (2.tw r
Accessible for inspection? \' _N_ (explain):
r i '
louvers, grates, 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 masons
fibrous class board flex-duct od
Accessible fire dampers Est total ci ty No locations inspected
Pipes!ntechamcaI equipment etc. located in shaft
Return air distribution (if servicing exhaust air):
P
Exhaust air inlet(s) Est. total qty _ No. locations inspected y
Specify shaft substrate (circle): eta fibrous ellass lined metal masonry
(n
fibious clas b li a iJ fi x•dct J
Accessible fire dampers Est. total qty No. locations inspected
Pipes mechanical equipment etc located in shaft nJ
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based
on finding of 1VTC dust):
NO vJ b u.S i
rni ;
i.r = not touna; 1 = inaccessible; U = unknown
NYC-WTC 000130416
OCR can misread numbers and units. Confirm readings against the page image before using them.