NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form Page I of I
mecnanicai Exhaust S stem roentincation:
Location: 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? not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? .Y J N (explain):
louvers, grates and/or screens
outside air duct
outside air damper(s)
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining
vibration collars _ - N
Exhaust air distribution:
Exhaust air ducts Est total In f 51) NC. lo; -, io
inspected I
Specify type (circle): metal fibrous Blass lined metal masonry fibrous glass board
flex-duct wood
Accessible in-line fire dampers Est. total gty i2.. No. locations inspected 0
Accessible turning vanes Est. totall gtty No. locations infected NP_
Exhaust air grilles Est. total )a-
No. locations ins ected
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: 11= iinknnwn
NYC-WTC 000113729
OCR can misread numbers and units. Confirm readings against the page image before using them.