NYC 9/11 Public Portal Document
2:2 - Mechanical Exhaust System Visual Inspection Form
Mechanical Exhaust System Identification: Page l of l
Location: r Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals/refuse Y N
System Components Surface Component
Dust/ WTC not
(NOTE: if component not present (NP), not found (NF) or
inaccessible (I) please Debris Dust
indicate in last column) present
Present? Present?
E not
found
Exhaust air outlet: . Location: inaccessible
Accessible for inspection? Y.j( N
louvers, grates and/or screens
(explain):
y ____ __
outside air duct N
outside air damper(s)
N
Exhaust fan unit:
blower assembly incl. blower wheel, housing. air vanes, in-line
noise
attenuators A/
blower housing acoustical lining
vibration collars t~l
Exhaust air distribution:
Exhaust air ducts Est total In ft______________ No. locations
inspected_
Specify type (circle): metal fibrous class lined metal masonry fibrous class board
flea-duct wood
Accessible in-line fire dampers Est. total qty 12 No locations inspected J
Accessible turning vanes Est. total gty No locations inspected
Exhaust air grilles N
Est. total qty t 2 No. locations inspected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based
on finding of W\'TC dust):
r
KEY: NP = not nt; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000113722
OCR can misread numbers and units. Confirm readings against the page image before using them.