Textron Cessna 172R - Amplified Procedures; Preflight Inspection

SECTION
4
NORMAL
PROCEDURES
CESSNA
MODEL
172R
AMPLIFIED
PROCEDURES
PREFLIGHT
INSPECTION
The
Preflight
Inspection,
described
in
Figure
4-1
and
adjacent
checklist,
is
required
prior
to
each
flight.
If
the
airplane
has
been
in
extended
storage,
has had
recent
major
maintenance,
or
has been
operated
from
marginal
airports,
a
more
extensive
exterior
inspection
is recommended.
After
major
maintenance has
been
performed,
the
flight
and
trim
tab
controls should be
double
checked
for
free
and
correct
movement
and
security.
The
security
of
all
inspection
plates
on
the
airplane
should
be checked
following
periodic
inspections.
If
the
airplane
has been
waxed
or
polished,
check the
external
static
pressure
source
hole
for
stoppage.
If
the
airplane
has been
exposed
to
much
ground
handling
in
a
crowded
hangar,
it
should
be checked
for
dents and
scratches
on
|wings,
fuselage,
and
tail
surfaces,
damage
to
navigation
and anti¬
collision
lights,
damage
to
nose
wheel
as a
result
of
exceeding
tow
limits,
and
avionics
antennas.
Outside
storage
for
long
periods
may
result
in
dust
and
dirt
accumulation
on
the
induction
air
filter,
obstructions
in
airspeed
system
lines,
water
contaminants
in
fuel
tanks
and
insect/bird/rodent
nests
in
any
opening.
If
any
water
is
detected
in
the
fuel
system,
the
fuel
tank
sump
quick
drain
valves,
fuel
reservoir
quick
drain
valve,
and
fuel
strainer
quick
drain
valve
should all
be
thoroughly
drained
again.
Then,
the
wings
should
be
gently
rocked
and
the tail
lowered
to
the
ground
to
move
any
further
contaminants
to
the
sampling
points. Repeated
samples
should
then
be
taken
at
all
quick
drain
points
until
all contamination
has
been
removed.
If,
after
repeated
sampling,
evidence
of
contamination
still
exists,
the
fuel
tanks should
be
completely
drained
and the
fuel
system
cleaned.
Additionally,
if
the
airplane
has
been
stored outside
in
windy
or
gusty
areas,
or
tied down
adjacent
to
taxiing
airplanes,
special
attention
should
be
paid
to
control
surface
stops,
hinges,
and
brackets
to
detect the
presence
of
potential
wind
damage.
4-18
Revision
4
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