NYC 9/11 Public Portal Document
2.2 ` Mechanical Exhaust System Visual Inspection Form Pap 1 of l
Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N dry Y stored chemicals.!refuse
N Y ' _N
Surface Component
System Components S Dusts WTC not
[NOTE:.if component riot present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicate in last column] Present? Present?
4 not
found
Inaccessible
Exhaust air outlet: Location:
Accessible for inspection? 'Y N (explain):
louv~Is, grates and/or screens t n1
outside air duct
outside air damper(s) ` Al
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining
vibration collars
Exhaust air distribution: y}
Exhaust air ducts Est total In ft 11V No. locations
inspected_
Specify type (circle): metal fibrous class lined metal
flex-duct wood
masonry fibrous ¢lass board
'7
Accessible in-line fire dam ers Est. total t • No. locations ins ected N
Accessible turning vanes Est. total No. locations inspected pJ P
Exhaust air rilles Est. total No. locations ins ected ô
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of NNTC dust):
KEY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000132803
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