NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Inspection Form Page I of I
Mechanical Exhaust System Identification:
Location: Area Served:
Associated mechanical room: clean Y N Y stored chemicals/refuse
N Y N
Surface Component
System Components Dust] WTC not
(NOTE: if component not present (NP), not found (NF) or inaccessible (I) please Debris Dust present
indicateIn last column] Present? Present?
4 not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y /J~_(explain~:
louvers, grates and/or screens
outside air duct .
outside air '.
damper(s) ..j
Exhaust fan unit: Y~
. .blower assembly incl. blower wheel, housing, air vanes, in-line noise =
attenuators
blower housing acoustical linin /V
vibration collars
Exhaust air distribution:
Exhaust air ducts Est. total In ft 1 ~•f1 No. locations
inspected (
pecify type (circle): etal fibrous las~Iined etal masonry fibrous class board AlIt
flex-duct 1yo t
Accessible in-Iine fire dampers Est. total gty If No. locations inspected =
Accessible turning vanes Est. total gty No. locations inspected q/O
Exhaust air grilles Est. total gty i No. locations inspected
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WTC dust):
_j i s j J J t . VII N
3
KFV: NP = not present; NF = not found; I = Inaccessible; U = unknown
NYC-WTC 000134634
OCR can misread numbers and units. Confirm readings against the page image before using them.