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- or, if during any workshop inspection, the findings suggest that the aircraft has made a hard landing or a landing with an overload.
In the first case, the pilot must be asked to specify the conditions at landing : weight / speed and if it was a 3-point touch-down or a hard skid on the main or nose landing gear.
Depending on the replies to these questions, investigations other than the points listed below, may be limited to special areas or components with the agreement of the people technically responsible for the aircraft.
The checks are divided into two categories of investigation, the first one being described in the Paragraph 2.C. "First-level investigation", the second one being implemented as described in the Paragraph 2.D. "Second-level investigation".
2. DETAILED INSPECTIONS
A. Tools and consumable materials
- 10 x magnifying glass
B. Preliminary operations
1) Check the shock-absorbers for leaks :
- at the piston / seals assembly, indicated by leaks on the sliding section,
- on the body, particularly around the inflation valve (cracks). If leaks are detected, do not perform steps 2), 3) and 4).
2) Tow the aircraft by hand and listen for unusual noises at attaching points, hinge points, scissors and shock-absorber sliding sections. Tow the aircraft in a straight line, then turn to the left and to the right.
3) After the aircraft towing on a flat area, check its horizontal attitude, height of two symmetrical points from the ground at wing tips (before taking the measurements, check tire correct inflation, shock-absorber height and similar fuel quantity in fuel tanks).
4) Clean the aircraft and particularly the landing gears and landing gear wells - refer to 12-20-03.
C. "First-level" investigation
This investigation aims at detecting cracks, distortions and other defects.
1) Inspect the tires (aircraft on the ground) for cracks on sidewalls and tears on fabric layers and detect local abrasion - refer to 12-10-03.
2) Jack up the aircraft - refer to 07-10-00.
3) Inspect the wheels (without removing them) for cracks, distortions and other defects which may be detected in this configuration. Check that each wheel rotates freely.
4) Check camber and parallelism - refer to 05-50-06.
ACAA
Validity : S / N 1 - 9999 05-50-01 Page 601
(DA) JUN 01
 
5) Power plant
a) Check that the cowlings are correctly aligned when closed.
b) Check for distortion, waviness, wrinkles on the engine cowling outer skins.
c) Remove the engine cowlings and detect distortion or defect on the engine mount, its attachments on the firewall and the attachments of mounting lugs on the engine.
d) Make sure that engine / propeller controls operate freely.
e) Check that there are no signs of impacts on propeller blade tips.
　
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