NYC 9/11 Public Portal Document
2-2 Mechanical Exhaust System Visual Inspection Form Page I of I
Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N dry Y stored chemicals'refuse
N Y N
Surface Component
System Components Dust! WTC t not
(NOTE: If component nbt present (NP), not found (NF) or inaccessible (I) please Debris Dust present
Present? Present?
Indicate in last column) 4 not
found
Inaccessible
Exhaust air outlet: Location:
Accessible for inspection? V1 ' N (explain):
louv~t?s. grates and/or screens
outside air duct
outside air damoer(s) N
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining jP
vibcation collars ,!P
Exhaust air distribution:
Exhaust air ducts Est total In ft_______________ No. locations
inspected 1
Specify type (circle): ` metal fibrous glass lined metal masonry fibrous class board Y lJ
flex-duct „•o d
Accessible in-line fire dampers Est. total gty No. locations inspected NG
Accessible nm ine vanes Est. total gty No. to:a?ion_ inspected G
Exhaust air grilles Est. total gty No. locations inspected I { ti
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 unknown
NYC-WTC 000135922
OCR can misread numbers and units. Confirm readings against the page image before using them.