NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form Page 1 of 1
Mechanical Exhaust System Identification:
Location: I Area Served:
Associated mechanical room: clean Y N dry Y stored chemicals/refuse
N 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 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__________________________________________
Exhaust air distribution:
Exhaust air ducts Est. total In ft No. locations
inspected_________
Specify type (circle): metal fibrous glass lined metal masonry fibrous glass board
flex-duct wood
Accessible in-line fire dampers Est. total qty No. locations inspected
Accessible turning vanes_______ Est. total qty No. locations inspected
Exhaust air grilles Est. total qty No. locations inspected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WTC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC_000140020
OCR can misread numbers and units. Confirm readings against the page image before using them.