PS Magazine - TB 43-PS-685
PS, The Preventative Maintenance Monthly
ISSUE 685
DECEMBER 2009
34
PS 685
DEC 09
35
PS 685
DEC 09
o matter what present is under the tree
whether football or rifle that fires a b-b
this one thing we know
in rain, sleet or snow
equipment won’t last if it’s pm free!
Pitot Tube PM
Christmas Day
Pitot Tube PM
aircraft
pitot tubes
tell you
what your
airspeed is.
if the tubes aren’t clean
and dry, you’ll have
problems with the airspeed
indicator, and you won’t
know your airspeed!
good pitot tube preventive
maintenance starts by
covering the tubes when
not in use to keep insects,
moisture and dirt out.
after aircraft
operations, make sure
you
turn off
the
pitot tube heater.
let the tubes
cool
first before you put
the covers on.
putting a cover on a
hot tube will cause
it to melt and stick
to the tube.
if that happens,
you’ll need to
clean the tubes or
replace them if they
cannot be cleaned.
keep the tubes
covered before your
bird flies again.
always test
your pitot static
system like your
applicable tm
says.
if your pitot
system does
not check out
properly, you
might need to
check and clean
your system.
check chap 4 of
tm 1-1500-204-
23-4 for the
good word on
pitot tubes.
and also
follow the
maintenance
steps in each
aircraft’s tm to
check and clean
your pitot
static system.
hey, halfie…
throw the
football
to me.
I-I
can’t!
the
air
leaked out.
All
Aircraft…
685.34-35.indd
1-2
10/19/09
12:26:56 PM
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