(k) All systems - inspect for improper installation, poor general condition, defects and insecure attachment;
Cowlings - inspect for cracks and other defects.
Internal corrosion - inspect engines which have not been inhibited and have been
out of service in excess of 12 months.
(n) Engine performance - during the ground run, run the engine in accordance with the manufacturer's recommendation to determine satisfactory performance of the following:
idle and maximum RPM;
magneto RPM drop;
fuel and oil pressures;
cylinder and oil temperatures.
Engines maintained to an On-condition program - check reference RPM.
Landing Gear Group
All units - inspect for condition and security of attachment;
Shock absorbing devices - check oleo fluid level;
Linkage, trusses and members - inspect for undue or excessive wear, fatigue and
Retracting and locking mechanism - inspect for improper operation;
Hydraulic lines - inspect for leakage;
Electrical system - inspect for chafing and improper operation of switches;
Wheels - inspect for cracks, defects and condition of bearings;
Tires - inspect for wear, cuts and incorrect inflation; inspect for improper
installation and improper operation.
Brakes - inspect for improper adjustment;
Floats and skis - inspect for insecure attachment and apparent defects;
COPA Guide to Certified Aircraft 35