Technical data

-the label indicating used engine oil is on the control tap of the upper cover of the engine
8.Airplane repairs
8.1.Repairs of connection screw
In case of corrosion, flection, cracking of the screw, it is necessary to exchange it. When the slip
thread occurs, it is necessary to exchange the screw and the nut. Replacing the screw is allowed
only with the screw same quality and norm. Self-ensuring nuts with plastic circle are only for
one use. All-metal nuts can be used maximally 3times and after compressing the ensuring circle
with tongs.
8.2.Repairs of rivet joints
When the rivet joint is damaged / released or asperted /, it is necessary to remove the damaged
rivet or its remainder, check if the connection places are not damaged and rivet the connection. If
the rivet connections are damaged, it is necessary to replace the parts or consult the reparation
with the producer of the airplane. Use the same quality and type of rivet when mending them.
8.3.Pilotage repairs
Pull bars, connection parts, iron ropes, bearings and other parts can not be damaged in any way.
Individual parts can be replaced only by original parts delivered by the producer. Any other
relevant damage of pilotage or if bigger airspace in the pilotage occurs, the service center of the
producer can repair them. After any reparation of the pilotage, flight test with a probationary
pilot must be done.
8.4.Airframe repair
The damaged surface should be cemented, rubbed and varnished when it is damaged slightly.
When perforation of nonsupporting parts occurs, / low part of the engine, wheel covers, cover of
front undercarriage wheel / , the reparation is done by laminating one or two layers of the
laminate, the cement, rub down and varnish the surface. The cementing should be done with two
component car mastic and by the direction for use.
Deeper damages of the airframe or its perforation are necessary to be consulted with the
producer, who will consider the influence of the damage on the resistance of the construction and
will determine the way of reparation.
8.5.Fuel system repairs
When finding the untightness of the fuel system or its passage, the reparation must be done
immediately. Sensible fault, for example released sleeve coupling of pipes, filter fouling, can be
repaired by the user of the airplane. Other reparations can be done only in the service center of
the producer.
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