NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form
Mechanical Exhaust System Identification:
Location:
Associated mechanical room: clean Y N
!ff dry Y
ff Area
N
rved:
stored chemicals/refuse Y
Page 1 of 1
N
System Components Surface Component
[NOTE: if component not present (NP), not found (NF) or DusU WTC not
inaccessible (I) please Debris Dust
indicate in last column] present
Present? Present? not
found
Exhaust air outlet: Location:
Accessible for inspection? Y N (explain):
louvers, grates and/or screens
tAl
outside air duct
outside air damper(s)
Exhaust fan unit: N
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical limn
vibration collars
Exhaust air distribution:
Exhaust air ducts Est total In ft () No. locations
inspected
Specify type (circle): meta fibrous glass lined metal masonry fibrous glass board Al
flex-duct wood
Accessible in-line fire dampers Est. total qty No locations inspected
Accessible turning vanes WA
Est. total qty No locations inspected
Exhaust air grilles Est total qty 1 No locations inspected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based
on finding of NVTC dust):
KEY: NP = not present; NF = not found; I = inaccessible;
U = unknown
NYC-WTC 000133790
OCR can misread numbers and units. Confirm readings against the page image before using them.