TECHNICAL DESCRIPTION, OPERATING, MAINTENANCE AND REPAIR MANUAL
4.9 Repair class 1
These repairs have serious character and can be carried out by the aeroplane
manufacturer or a repair workshop approved by local Civil Aviation Authority ( CAA ).
In any case contact the aeroplane manufacturer.
4.10 Repairs of a metal parts
In case of a damage of any fittings, if a damage reason was not designate immediately,
contact the aeroplane manufacturer. It is necessary take account to an element function, a
material composition, a processing technology and etc. The aeroplane manufacturer can
evaluate all these factors only.
Welding should be carried out only by an approved aircraft welder. All weldments made
by the aeroplane manufacturer are by the Argon-arc welding method.
4.11 Test flight after a repair
CAUTION
Only qualified pilot may perform a test flight. .
The test flight should be performed above all in following cases:
After repair or replace of fixed surfaces – wing, fin, stabilizer, or control surfaces –
elevator, aileron or flap. Flight characteristics and aeroplane stability can be affected
when above mentioned part is replaced or adjusted. Therefore a test flight should be
performed to check aeroplane flight characteristics, control surfaces setting,
maneuverability, stability and stall characteristics. The characteristics are check during
taxiing, takeoff, climbing, cruise, descent, approach and landing. Use the Flight Test
Record ( see Section 5, Appendices, of this Manual ) to record data obtained during a test
flight.
Test flight flying time
Test flight flying time takes about 40 minutes if the test flight is performed according to
the Flight Test Record.
Aeroplane inspection before a Test flight
Prior to the test flight the aeroplane should be thoroughly inspected, weighed, found
faults debugged and the aeroplane should be prepared for the flight ( tank etc. ).
Test crew
Only qualified persons ( test pilots ) are permitted to perform a test flight.
In-flight found faults should be debugged forthwith the test flight.
Date: 01.03.2002 WT-9 Dynamic Section 4 Page 4 - 6
To Next Page
Loading...
