Inspection During Storage; Returning Aircraft To Service - Cessna 1969-1976 172 Series Service Manual

NOTE
The aircraft battery s e r i a l number is recorded
in the a i r c r a f t equipment list. To a s s u r e ac-
curate warranty records, the battery should be
re-installed in the s a m e aircraft from which
it
was
removed. If the battery is returned to
service in a different aircraft, appropriate
record changes must be made and notification
sent to the Cessna Claims Department.
f . Remove battery and store in
a
cool dry place;
service the battery periodically and charge
as
r e -
quired.
NOTE
An engine treated in accordance with the fol-
lowing may be considered protected against
normal atmospheric corrosion for
a
period
not to exceed 90 days.
g. Disconnect spark plug leads and remove upper
and lower spark plugs from each cylinder.
NOTE
The preservative oil must be Lubricating
Oil-Contact and Volatile, Corrosion In-
hibited, MIL-L-46002, Grade 1 or equiva-
lent. The following oils are approved for
spraying operations by Teledyne Continental
Motors, Nucle Oil 105
-
Daubert Chemical
Co., 4700 So. Central Ave., Chicago, Illinois,
Petratect VA- Pennsylvania Refining C o o ,
Butler, Pennsylvania, Ferro-Gard 1009G
-
Ranco Laboratories, Inc., 3617 Brownsville
Rd., Pittsburg, Pennsylvania. The following
oils a r e approved for spraying operation by
Lycoming, Socony Averex 901, o r Esso Rust-
Ban
626, or
equivalent.
h. Using a portable pressure sprayer, atomize
spray preservative oil through the upper spark plug
hole of each cylinder with the piston in
a
down posi-
tion. Rotate crankshaft as each pair of cylinders is
sprayed.
i.
After completing step "h,
"
rotate crankshaft so
that no piston is at a top position. If the aircraft is
to be stored outside, stop two-bladed propeller
s o
that blades a r e
as
near horizontal
as
possible to pro-
vide maximum clearance with passing aircraft.
crankshaft to thoroughly cover all interior surfaces
of the cylinder above the piston.
j.
Again spray each cylinder without moving the
k, Install spark plugs and connect spark plug leads.
1 . Apply preservative oil to the engine interior by
spraying approximately
two
ounces of the preserva-
tive oil through the oil filler tube.
m. Seal all engine openings exposed to the atmos-
phere using suitable plugs or non- hygroscopic tape.
Attach
a
r e d streamer
at
each point that
a
plug
or
tape is installed.
n. If the aircraft is t o be stored outside, perform
the procedures outlined in paragraph 2-7.
In addi-
tion, the pitot tube, static source vents, air vents,
opepings in the engine cowling and other similar
2-4 Change 3
openings should have protective covers installed to
prevent entry of foreign material.
0.
Attach a warning placard to the propeller to the
effect that the propeller shall not be moved while the
engine
is
in storage.
2- 11. INSPECTION DURING STORAGE.
a.
Inspect airframe for corrosion
at
least once
a
month and remove dust collections
as frequently as
possible. Clean and wax
as
required.
b. Inspect the interior of
at
least one cylinder
through the spark plug hole for corrosion
at
least
once
a
month.
NOTE
Do not move crankshaft when inspecting
interior of cylinder for corrosion.
c. If
at the end of the 90 day period, the aircraft is
to be continued in non-operational storage, again per-
form the procedural steps "g thru
0"
of paragraph
2- 10.
2- 12. RETURNING AIRCRAFT TO SERVICE. After
temporary storage, use the following procedures to
return the aircraft to service.
proper inflation. Check for proper nose gear s t r u t
inflation.
a. Remove a i r c r a f t from blocks and check t i r e s for
b. Check battery and install.
c. Check that oil sump has proper grade and quan-
d. Service induction air filter and remove w?rning
e. Remove materials used to cover openings.
f. Remove spark plugs from engine.
g. While spark plugs a r e removed, rotate propel-
l e r several revolutions to clear excess r u s t preven-
tive oil from cylinders.
h. Clean, gap and install spark plugs. Torque
plugs to the value specified in Section 11 or 11A;
connect spark plug leads.
s c r e e n if necessary.
for moisture and sediment, drain enough fuel to elimi-
nate moisture and sediment.
s t a r t and warm-up engine.
2- 13. INDEFINITE STORAGE. Indefinite storage
is
defined as aircraft in a non-operational status f o r an
indefinite period of time. Engines treated in accor-
dance with the following may be considered protected
against normal atmosphere corrosion, provided the
procedure outlined in paragraph 2- 14 a r e performed
at
the intervals specified.
a.
Operate engine until oil temperature reaches
normal operating range. Drain engine oil sump and
reinstall drain plug.
b. Fill oil sump to normal operating capacity with
corrosion preventive mixture which h a s been thor-
oughly mixed and pre-heated to
a
minimum of 221°F
at the time
it
is added to the engine.
tity of engine oil.
,*
placard from propeller.
I
I
i.
Check fuel strainer. Remove and clean filter
Check fuel tanks and fuel lines
j. Perform
a
thorough pre-flight inspection, then