NYC 9/11 Public Portal Document
2.2 Mechanical Exhaust System Visual Tncnt rfinn Pnrm I ..r,
Mechanical Exhaust System Identification: .T.
Location: ~1 O P Area Served:
Associated mechanical room: clean Y N dry Y N
stored chemicals.'refuse Y N
Surface Component
System Components Dust/ WTC i; not
(1\OTE:.if component not present (NP), not found (\F) or inaccessible (I) please Debris Dust present
indicate in last column] Present? Present? not
found
inaccessible
Exhaust air outlet: Location:
Accessible for inspection? Y V N (explain): `JJ
louve4 s, grates and/or screens Ad
outside air duct VL.
outside air dampers)
Exhaust fan unit:
blower assembly incl. blower wheel, housing, air vanes, in-line noise
attenuators
blower housing acoustical lining N
vibration collars n/p
Exhaust air distribution:
Exhaust air ducts Est total in ft J No. locations
inspected
Specify type (circle): met fibrous class lined metal masonry fibrous class board [
flex-duct wood
Accessible in-line fire dampers Est. total gty No. locations inspected N
Accessible turning vanes Est. total No, locations inspected ,up
Exhaust air rilles Est. total ty No. locations ins ected 0
Other (specify):
Other Information:
General impression (indicate recommendations for cleaning based on finding of WNTC dust):
1<EY: NP = not present; NF = not found; I = inaccessible; U = unknown
NYC-WTC 000132796
OCR can misread numbers and units. Confirm readings against the page image before using them.