Serial Number 1646
Date of Issue: 23 June 2017
Revision - Original
43
Periodic inspections
25-hour inspection
Remove top cowling of engine
Check condition and leaks of fuel system
Check condition and leaks of oil system
Check condition and leaks of cooling system
Check exhaust system for cracks and leaks
Check engine mount for cracks
Check attachment of engine mount and engine
Check attachment of propeller
Visual check of electric installation
Check nose wheel shock absorber and control
Lubricate nose wheel leg
Check carburetor control (choke, throttle)
100-hour inspection
If aircraft is operated in demanding conditions, halve this interval to 50 hours.
Demanding operating conditions include:
Glider towing
Ambient temperatures continuously exceeding 35° C or very dusty conditions This inspection consists of the
following:
Engine and propeller service
Airframe service
Fuel system cleaning
Inspection of instruments and equipment
Engine and propeller service
Change engine oil and filter, check and clean spark plugs, replace as necessary, check carburetor adjustment
and control, check exhaust system condition, check engine mount and attachment of all parts, propeller service,
inspection, check tightening of mounting screws using prescribed torque, check condition of propeller hub and
blades – concentrate on cracks; other checks prescribed by propeller manufacturer.
Observe engine and propeller manufacturer’s instructions during this work.
