NYC 9/11 Public Portal Document
2.2 'Mechanical Exhaust System Visual Inspection Form
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Location:
Area Served:
R-odF
Associated mechanical room: clean Y N dry Y N
stored chemicals/refuse Y N
System Components Surface Component
Dust! WTC
[NOTE: if component not present (NP), not found (NF) or inaccessible (I)
please Debris
4 not
Dust present
indicate in last column) Present? Present? not
found
Exhaust air outlet: Location: inaccessible
Accessible for inspection? YIN (explain):
louvers, grates and/or screens
Y
Al
outside air duct
outside air damper(s) NP
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators A/
• blower housin acoustical linin v P
vibration collars N P
Exhaust air distribution:
Exhaust air ducts Est. total In ft— 1,213 No. locations
inspected__ '
Specify type (circle): metal fibrous class lined metal masonry fibrous glass board Al
flex-duct wood
city L2.
Accessible turning vanes Est. total g No. locations inspected
Exhaust airgrilles Est. total No. locations ins ected a
—+
Other Information:
General impression (indicate recommendations for cleaning based on
finding of WTC dust):
I KEY: NP = not present; NF = not found; I = inaccessi = unknown
NYC-WTC 000133665
OCR can misread numbers and units. Confirm readings against the page image before using them.