Cessna 172R Operating Handbook page 415

CESSNA
MODEL 172R
The winterization kit
which attach
to
silk screened on the instrument panel, and insulation for the
crankcase breather line. This equipment should be installed for
operations in temperatures consistently below 20° F (-7°C). Once
installed, the crankcase breather insulation is approved for
permanent use, regardless of temperature.
The following information
placards when the airplane is equipped with a winterization kit.
.
On each nose cap cover plate:
1
REMOVE WHEN O.A.T. EXCEEDS +20°F.
On the instrument panel
2.
WINTERIZATION KIT MUST BE REMOVED
Feb 28/97
SUPPLEMENT
WINTERIZATION KIT
SECTION 1
GENERAL
consists
the air intakes in the cowling nose
SECTION 2
LIMITATIONS
AIR TEMPERATURE IS ABOVE 20° F.
SECTION 9
SUPPLEMENT 8
cover plates (with placards)
of
two
be presented in the form of
must
near
the EGT gauge:
SUPPLEMENTS
-
FAA APPROVED
-
cap, a placard
WHEN OUTSIDE
S8-3