NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form Page I of I
Mechanical Exhaust System Identification:
Location: (_ _ 0 r Area Served:
lal room: clean
Associated mechanical Y N dry Y N
stored chernicals.rrefuse Y T
Surface Component
System Components Dust/ WTC F, 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:
' I
Accessible for inspection? Y Y N (explain): y ~N'
Iouv1 s, grates and'or screens t `-
outside air duct
outside air dam er(s)
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise I
attenuators Al
blower housing acoustical lining
vibration collars P
Exhaust air distribution:
Exhaust air ducts Est total In ft .Lim No. locations
inspected
Specify type (circle): fibrous class lined metal masonry fibrous class board
tea-duct ~~•o d
Accessible in-line fire dantoers Est. total aty No. locations ins ected AJ
Accessible turning vanes Est. total or• No. tocations ins-7ected I N P
Exhaust air grilles Est. total No. locations ins ected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of W1'TC dust):
KEY:NP = not resent; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000135925
OCR can misread numbers and units. Confirm readings against the page image before using them.