Cessna 150M - Inspection During Storage; Returning Aircraft to Service; Indefinite Storage

I
NOTE
The
aircraft battery serial number is recorded
in the aircraft equipment list. To assure ac-
curate warranty records, the battery should be
re-installed in the same 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 Departmento
f. Remove battery and store in a cool dry place;
service the battery periodically and charge as re-
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.
go 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 Inhibited,
MIL-L-46002, Grade 1 or equivalent. The
following
oils are approved for spraying op-
erations by Teledyne Continental Motor s,
Nucle Oil 105 - Daubert Chemical Co., 4700
So. Central Ave., Chicago, illinois, Petratect
VA - Pennsylvania Refining Co., Butler Penn-
sylvania. Ferro-Gard 1009G - Ranco Labora-
tories, Inc., 3617 Brownsville Rd., Pittsburgh,
Pennsyl vania.
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 so
that blades are as near horizontal as possible to pro-
vide maximum clearance with passing aircraft.
j. Again spray each cylinder without moving the
crankshaft to thoroughly cover all interior surfaces
of the cylinder above the piston.
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 red streamer at each point that a plug or
tape is installed.
n. If the aircraft is to be stored outSide, perform
the procedures outlined in paragraph 2-7. In addi-
tion, the pitot tube, static source vents, air vents,
openings in the engine cowling and other similar
2-4 Change 2
openings should have protective covers installed to
prevent entry of foreign material.
o. 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 in-
terior 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 fIg 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.
a. Remove aircraft from blocks and check tires for
proper inflation. Check for proper nose gear strut
inflation.
b. Check battery and install.
c. Check that oil sump has proper grade and quantity
of engine oil.
d. Service induction air filter and remove warning
placard from propeller.
e. Remove materials used to cover openings.
f. Remove, clean, and gap spark plugs.
g. While spark plugs are removed, rotate propeller
several revolutions to clear excess rust preventive
oil from cylinders.
ho Install spark plugs. Torque spark plugs to 330
±30
lb-in and connect spark plug leads.
i. Check fuel strainer. Remove and clean filter
screen if necessary. Check fuel tanks and fuel lines
for moisture and sediment, drain enough fuel to elimi-
nate moisture and sediment.
j. Perform a thorough pre-flight inspection, then
start and warm-up engine.
2-13. INDEFINITE STORAGE. Indefinite storage is
defined as aircraft in a non-operational status for an
indefinite period of time. Engines treated in accor-
dance with the following may be considered protected
against normal atmosphere corrOSion, provided the
procedures outlined in paragraph 2-14 are 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 has been thor-
oughly mixed and pre-heated to a minimum of 221°F
at the time it is added to the engineo