AMC1 M.A.402(h) Performance of maintenance    

CAA ORS9 Decision No. 1

CRITICAL MAINTENANCE TASKS

The following maintenance tasks should primarily be reviewed to assess their impact on safety:

(a) tasks that may affect the control of the aircraft, flight path and attitude, such as installation, rigging and adjustments of flight controls;

(b) aircraft stability control systems (autopilot, fuel transfer);

(c) tasks that may affect the propulsive force of the aircraft, including installation of aircraft engines, propellers and rotors; and

(d) overhaul, calibration or rigging of engines, propellers, transmissions and gearboxes.