NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Tnsneetinn Fnrm 'D ann , ..r a
Mechanical Exhaust System Identification:
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 1tbt present (NP), not found (NF) or Inaccessible (I) please
4
Debris . Dust present
indicate in last column] Present? Present? not
found
Inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y V oc N
(explain):
iouv s, grates and!or screens
outside air duct
outside air damper(s) Q
Exhaust fan unit:
blower assembly incl. blower %%-heel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining A/P
vibration collars
Exhaust air distribution:
Exhaust air ducts Est total In ft FAO No. locations
inspected__________
Specify type (circle): meta fibrous class lined metal masonry fibrous Mass board
flex-duct wood
Accessible in-line fire dampers Est. total gty
7 No. locations inspected 0
Accessible turning vanes Est. total t y No. locations inspected Af
Exhaust air rilles Est. total No. locations ins ected —•
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of 1VTC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000132746
OCR can misread numbers and units. Confirm readings against the page image before using them.