A.
The basis for assuring an airplane remains airworthy and safe to operate is, to combine the manufacturer's requirement Switch sound inspection and maintenance practices.
B.
To ensure airworthiness and safe operation of an airplane, itis essential to follow the manufacturer's instructions in the utilization of airplane and perform sound inspection and maintenance practices as well.
C.
Airworthiness and safe operation are fundamental to aircraft utilization as required by the manufacturer, so sound inspection and maintenance/practices are carried out.