NYC 9/11 Public Portal Document
2.4 Passive Shaft/Duct Visual Inspection Form Page 1 of I
Passive Shaft/Duct Identification: ç i2 iw7Al'
Location: Area Served:
F
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?
4 not
found
Inaccessible
Outside air Intake (if servicing supply air): Location: G ,, Lq eL 2M/
11cao~
Accessible for inspection? Y f N (explain):
louvers, grates, screens or weather cap
Y rJ
Exhaust outletilouver (if servicing exhaust air): Location:
Accessible for inspection? Y N (explain):
louvers, grates, screens or weather ca
Supply air distribution (if servicing supply air):
Supply air outlet(s) Est. total gty i No. locations inspected i'
Specify shaft substrate (circle): jjjD fibrous class lined metal masonry nJ
fibrous glass board flex -duct wogs
Accessible fire dampers Est. total gty No. locations inspected N
Pipes/mechanical equipment, etc. located in shaft p n
Return air distribution (if servicing exhaust air):
Exhaust air inlet(s) Est. total qty No. locations inspected
Specify shaft substrate (circle): metal fibrous class lined metal masonry
fibrous glass board ex-duct wo
Accessible fire dam ers Est. total ty No. locations ins ected
Pi esfinechanical equipment, etc. located in shaft
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of 'TC dust):
KEY: NP - not present; NF - not found; I - inaccessible; U a unknown
NYC-WTC 000135949
OCR can misread numbers and units. Confirm readings against the page image before using them.