NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form Page I of I
Mechanical Exhaust System Identification:
Location: n Area Served:
Associated mechanical room: clean Y N dry Y N stored chemicals'refuse Y ' N
Surface Component
System Components Dust! WTC 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
Exhaust air outlet: Location:
Accessible for inspection? Y__\/' N (explain):
louvers, grates and/or screens
outside air duct
outside air damper(s)
.) _.
Exhaust fan unit: .
blower assembly Incl. blower wheel, housing, airyanes, in-line noise {
attenuators
blower housing acoustical lining
vibration collars
Exhaust air distribution:
Exhaust air ducts Est total In ft I Z` ~) No. locations
inspected (
Specify type (circle): etal) us class line m 1 masonry fibrous glass board
flex-duct wood Y ~J
Accessible in-line fire dampers Est. tots; qty t No. locations inspected ('
Accessible turning vanes Est. total No. locations ins ected ;Jp
Exhaust air grilles Est. total gry No. locations inspected T
Other (specify): if
Other Information:
General Impression (indicate recommendations for cleaning based on finding of WTC dust):
C
KEY: NP = not present; NF = not found; I = Inaccessible; U = unknown
NYC-WTC 000135903
OCR can misread numbers and units. Confirm readings against the page image before using them.