A~rcran Pnbl~calions
P~pcr Comanche
250
(Early
Model)
Section
-
8
Maintenance
PREVENTATIVE MAINTENANCE
A
certified pilot who owns or operates an aircraft not used as an air carrier is authorized to
perform certain preventative maintenance described in
FAR
Part 43.
A
Service Manual should be
obtained prior to performing any preventative maintenance to insure that proper procedures are
followed.
Although such maintenance is allowed by law, each individual should detemine whether he has the
ability to perform the work. All other maintenance not outlined in
FAR
Part 43 is required to be
accomplished by appropriately licensed personnel.
A
pilot can, however, perform any other
maintenance on an aircraft if he works under the direct supervision of a properly certified
mechanic.
If maintenance is performed, an entry must be made in the appropriate logbook. The entry should
contain:
1.)
Date the work was accomplished.
2.)
Engine tachometer hours.
3.)
Description of the work.
4.)
Signature and certificate number of pilot performing the work
Among the examples listed in
FAR
Part 43 considered as preventative maintenance are:
1.)
Engine Care:
The engine may be cleaned with Stoddard solvent or the equivalent then thoroughly dried.
Cleaning solutions should be used cautiously and should always be properly neutralized afte~
use. Care should be taken to prevent cleaning fluids from entering the magnetos, starter,
generator or vacuum pump. Spark plugs should be cleaned and gapped every
50
hours of
engine operation.
2.)
Fuel Requirements:
The minimum grade of aviation fuel that can be used in the Comanche
250
is (blue)
91196
octane
(100
LL).
The use of lower grades of he1 can cause serious engine damage in a short
period of time, and use of fuel with lower grades of octane will invalidate the engine warranty.
The fuel system sump should be drained daily to avoid the accumulation of contaminates such
as water or sediment. Keep fuel tanks full after aircraft operation to minimize the chance of
accumulation of water in the tanks due to condensation. The fuel strainer and carburetor
screens should be checked and cleaned with acetone at
50
hour intervals.
Copyright:
1993
Page
8-4
To Next Page
Loading...
Need help?
General