All fabrics, whether on wings or other parts of the machine, for holes, cuts, weak or badly doped places, or signs of being soaked with gasoline, and to see if properly fastened to wings, etc.
All outside turnbuckles, to see that they have sufficient threads engaged, and that they are properly locked.
Axles, wheels, shock absorbers, and tires, pumping the latter up to the correct pressure.
The seats, both for passenger and pilot, seeing that they are fastened correctly.
Safety belts and their fastenings.
This examination should be carried out systematically in the following order:
(a) Lower wings, landing gear complete, tail planes with all wires attached to these tail skids and all attachments and rudder.
(b) Nacelle or fuselage, bolts of lower plane, all control levers and wires.
(c) Top wings, wing flaps or ailerons and wires.
Inspection after Each Flight.—The landing gear, tail skid and attachments and lift and drag wires for tautness.