Periodic inspections of aircraft other than balloons
Reference:
Standard 625 Appendix B: Maintenance Schedule – Canadian Aviation Regulations (CARs)
At the intervals prescribed in the general procedures in the above appendix, the following items should be inspected on an aircraft in accordance with the following instructions from the aircraft manufacturer:
(a) Remove or open all necessary inspection plates, access doors, fairings and cowlings. Thoroughly clean the aircraft and engine.
(b) Inspect panel, door and cowling closing and locking mechanisms for improper installation and function.
(c) Lubricate in accordance with the manufacturer’s recommendations.
(a) Structure – inspect for deterioration, distortion, evidence of failure and defective or insecure attachment of fittings.
(b) Systems and components – inspect for improper installation, apparent defects and unsatisfactory operation.
(a) Generally – inspect for dirt and loose equipment that might foul the controls;
(b) Seats and safety belts – inspect for poor condition, fraying, and any other apparent defects;
(c) Windows and windshields – inspect for deterioration and breakage;
(d) Instruments – inspect for poor condition, mounting, marking and, where practicable, for improper operation;
(e) Flight and engine controls – inspect for improper installation and improper operation;
(f) Batteries – inspect for improper installation and improper charge;
(g) All systems – inspect for improper installation, poor general condition, apparent and obvious defects and insecurity of attachment.
(h) Placards – inspect for missing and illegible mandatory placards.
(a) Leaks – inspect for oil, fuel or hydraulic leaks;
(b) Studs and nuts – inspect for defects, evidence of improper torque and safety locking;
(c) Cylinder compression – check; if compression test indicates problems, check internal condition and tolerances;
(d) Screens and sump drain plugs – check for metal particles or foreign matter;
(e) Engine mounts – inspect for cracks, looseness of mounting and looseness of engine to mount;
(f) Flexible vibration dampeners – inspect for poor condition and deterioration;
(g) Engine controls – inspect for defects, improper travel and improper safety locking;
(h) Lines, hoses and clamps – inspect for leaks, improper condition and looseness;
(i) Exhaust stacks – inspect for cracks, defects and improper attachment;
(j) Accessories – inspect for apparent defects in security of mounting;
(k) All systems – inspect for improper installation, poor general condition, defects and insecure attachment;
(l) Cowlings – inspect for cracks and other defects.
(m) 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:
(i) idle and maximum RPM;
(ii) magneto RPM drop;
(iii) fuel and oil pressures;
(iv) cylinder and oil temperatures.
(o) Engines maintained to an On-condition program – check reference RPM.
(a) All units – inspect for condition and security of attachment;
(b) Shock absorbing devices – check oleo fluid level;
(c) Linkage, trusses and members – inspect for undue or excessive wear, fatigue and distortion;
(d) Retracting and locking mechanism – inspect for improper operation;
(e) Hydraulic lines – inspect for leakage;
(f) Electrical system – inspect for chafing and improper operation of switches;
(g) Wheels – inspect for cracks, defects and condition of bearings;
(h) Tires – inspect for wear, cuts and incorrect inflation; inspect for improper installation and improper operation.
(i) Brakes – inspect for improper adjustment;
(j) Floats and skis – inspect for insecure attachment and apparent defects.
Inspect structure for general condition, deterioration, distortion, evidence of failure and insecurity of attachment.
Inspect structure for general condition, deterioration, distortion, evidence of failure, insecure attachment, improper component installation and improper component operation.
(a) Propeller hub assembly – inspect for cracks, nicks, binding and oil leakage;
(b) Bolts and nuts – inspect for improper torque and safety locking;
(c) Anti-icing devices – inspect for improper operation and defects, paying particular attention to:
(i) deicer boots for cuts, gouges and adherence;
(ii) slip ring for excessive wear and gouges; and
(iii) connections and harness for tightness.
(d) Control mechanisms – inspect for improper operation, insecure mounting and improper range of travel;
(e) Metal blades – inspect for
(i) cracks, nicks, external corrosion, dents, scratches, bends, erosion and loss of protective finish,
(ii) evidence of lightening or object strike, and
(iii) correct track, excessive rotational and end play;
(f) Wooden and composite blades – inspect for:
(i) cracks, bruises, scars, warping, evidence of glue failure and delamination,
(ii) correct track, excessive rotational and end play, and
(iii) attachment bolt tightness;
(g) Spinner assembly – inspect for cracks and wear;
(h) Variable pitch propellers – check correct operation during ground run.
(a) Radio and electronic equipment – inspect for improper installation and insecure mounting.
(b) Emergency Locator Transmitters – test performance in accordance with the procedure specified in Appendix G of Chapter 571 of the Airworthiness Manual .
(c) Wiring and conduits – inspect for improper routing, insecure mounting and apparent defects.
(d) Bonding and shielding – inspect for improper installation and poor condition.
(e) Antennas, including trailing antennas – inspect for poor condition, insecure mounting and improper operation.
(a) Enter details of all deficiencies found during the inspection in the aircraft technical records.
(b) Upon completion of the inspection, replace or close all inspection plates, access doors, spinners, fairings and cowlings.
