CHAPTER 12
PAGE 13
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 1. August 2014
12-20-00 SCHEDULED SERVICING
12-20-01 Exterior Cleaning
The painted surface of the aircraft features a long lasting, all-
weather finish and should require no buffing or rubbing out
in normal conditions. However, it is desirable to wash and
polish it to preserve the outstanding exterior. Cleaning is
best accomplished with cool water, mixed with a mild aircraft
detergent, if required.
N O T I C E Do not use so called "mild" household detergents to
wash aircraft exterior. Such detergents may damage
finish and corrode aluminum components.
In order to remove especially heavy dirt from the wing
leading edges due to insect splatter and the like, it is good
practice to undertake cleaning immediately after the flight,
since deposits of this kind are more difficult to remove when
dry. All lubricated components are to be covered before
cleaning.
Roughly twice a year, the complete surface should be treated
with a non-silicone car polish and repolished to high gloss.
But do not apply wax or use pre-wax cleaners during initial
paint curing period. Use only mild aircraft detergent and
cool water when washing exterior during the first 90 days
after repainting.
N O T I C E Never use cleaning agents containing silicone!
In order to maintain good visibility at all times, the acrylic
glass (Plexiglas) canopy and the optional polycarbonate
window in the bottom fuselage cover should be given good
care and kept clean at all times. Techniques and materials
used to clean glass should be avoided since acrylic glass and
polycarbonate are softer than glass and subject to damage by
solvents and abrasive glass cleaning agents.
Therefore one should pay particular attention to using ample
water applied with clean sponges and leather, while even the
smallest dust partiles will tend to scratch the glazing.
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