NYC 9/11 Public Portal Document
• 2. Mechanical Exhaust System Visual Inspection Form Page 1 of 1
• Mechanical Exhaust System Identifica t'non:
j -
Locatiop:' n
Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals/refuse Y N
Surface Component
System Components Dust/ WTC
(NOTE: if component not present (NP), not found (NF) or inaccessible (1) please t not
Debris Dust present
Indicate in last column] Present? Present? not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y N (explain): 7 1J
louvers, grates and/or screens N
outside air duct N
outside air damper(s)
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
• blower housing acoustical lining
NP
vibration collars
Exhaust air distribution:
Exhaust air ducts Est_. total In ft 1,2-0 No. locations
• inspected
Specify type (circle): etal fibrous glass lined metal
flex-duct wooed
masonry fibrous Blass board
7 Al
Arr
Accessible turning vanes Est. total gty No. locations inspected NP
Exhaust air grilles Est. total No. locations ins ected 'T
Other (specify):
Other Information: -
General impression (indicate recommendations for cleaning based on finding of WTC dust):
I KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000133666
OCR can misread numbers and units. Confirm readings against the page image before using them.