NYC 9/11 Public Portal Document
2.2 • Mechanical Exhaust System Visual Inspection Form Page 3 of 1
Mechanical Exhaust System Identification:
Location: nn Area Served:
Q_0 F
~~o
Associated mechanical room: clean Y N dry Ystored ehemicals!refuse
N Y N
Surface Component
System Components Dust, WTC 4 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 Y N (explain): 11
'1
louvers, grates and'or screens
outside air duct
outside air damp er(s) _ N
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
A/
attenuators
blower housing acoustical lining N
vibration collars !V O
Exhaust air distribution:
Exhaust air ducts Est total In ft 2-i 0 No. locations
inspected t
Specify type (circle): :;a'. fibrous Qlass lined metal masonry fibrous class board Y
flex-duct ~~•ood
Accessible in-line fire dampers Est. total gty No. locations inspected E Nn
Accessible turning vanes Est. total gty No. lo:ati~.^.s inspected Nn
Exhaust air grilles Est. total gty 9j No. locations inspected 0 ( i
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of TC dust):
I KEY: NP - not present; NF - not found; I = inaccessible; U - unknown — I
NYC-WTC 000135930
OCR can misread numbers and units. Confirm readings against the page image before using them.