NYC 9/11 Public Portal Document
2. Mechanical Exhaust System Visual Inspection Form
Mechanical Exhaust System Identification: Page] of I
Location: — p
Area Served:
n
Associated mechanical room: clean Y N dry Y N stored chemicals/refuse Y N
System Components Surface Component
(NOTE: if component not present (NP), not found (NF) or Dust/ WTC not
inaccessible (I) please Debris Dust
indicate in last column) Present? Present?
presentnot
found
Exhaust air outlet: Location: inaccessible
Accessible for inspection? Y V N (explain):
louvers, crates and/or screens ;
outside air duct
N
outside air damper(s)
N
Exhaust fan unit: NP
blower assembly incl. blower wheel, housing, air vanes,
in-line noise
anenuators
blower housing acoustical lining A)
vibration collars
Exhaust air distribution: /11 P
Exhaust air ducts Est total In ft i2_) No. locations
inspected
Specify type (circle): metal fibrous ¢lass lined metal masonry fibrous glass board Al
flex-duct wood
Accessible in-line fire dam ers Est. total / No. locations ins ected O
Accessible turning vanes Est. total qty No. locations inspected _ _ N P
Exhaust air grilles Est. tota l No. locations ins ected
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
NYC-WTC-000113727
OCR can misread numbers and units. Confirm readings against the page image before using them.