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8.2. Aeroplane Repairs
The owner of aeroplane is obliged to report to the manufacturer each damage which may has
an influence on an airframe strength or flight qualities. The manufacturer determines a way of
repair.
Minor repairs are the repairs of those parts, which do not participate substantially in the
aeroplane function and stiffness.
Among the permitted repairs are:
- the lacquer repair
- replacing the worn-out parts
- repairing the tyres of the landing wheels
These repairs can be carried out by the owner itself. Repairs of the torsion box, spars, wing or
tail surfaces, landing gears and carrying load parts of airframe must be carried out in an
special workshop. In case of surface finish repairs and changes the upper parts of aeroplane
must always be kept in white.
8.3. Major Overhaul
The major overhaul is carried out after 1200 flight hours but not later than 10 years after
putting the aeroplane into operation, unless decided otherwise during regular technical
inspections or by the company bulletin. The overhaul will be carried out in a special
workshop. The overhaul and maintenance are carried out according to the instructions of the
engine producer.
8.4. Anchorage of the Aeroplane
The anchorage of the aeroplane is necessary in order to protect the aeroplane against eventual
damage caused by the wind or wind blasts during parking outside the hangar. For the purpose,
the aeroplane is equipped with threaded holes at the bottom side of the wing and at the tail
skid. Threaded eye bars can be fastened into this points.
8.5. Cleaning and Care
The aeroplane surface should always be treated by using suitable cleaning agents. The oil and
grease rests can be removed from the aeroplane surface by suitable surface active substances
or eventually by petrol. The cockpit enclosure should be cleaned only by washing using a
sufficient water flow with an addition of suitable surface active substances. Never use petrol
or chemical solvents.