NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Insnectinn Fnrm 1D___
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'Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals!refuse Y. N
Su Component
System Components Dust/Ce WTC
l not
(NOTE:.If component•not present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicate in last columnj Present? Present? not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y, / A (explain):
louvt: s, grates and'or screens ^/
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 NA
vibration collars Nn
Exhaust air distribution:
Exhaust air ducts Est total In ft_ No. locations
inspected
Specify type (circle): eta fibrous class lined metal masonry fibrous glass board
flex-duct ~~•ood
Accessible in-line fire dampers Est. total gty '7 No. locations inspected 0 T
Accessible turning vanes Est. total ty Igo. torations inspected n
Exhaust air rilles Est. total N'o. locations ins ected
Other (specify):
Other Information:
General impression (indicate recommend ations'for cleaning based on finding of \1'TC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000133935
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