iKarus C42 Owner's Manual

C42 Owner’s Manual (Microlight) Page 34
11.2 Periodic Maintenance and Inspection
Servicing, maintenance and repair work on this class of aircraft can be performed by the pilot.
Certain work must be signed off in the Engine and Airframe Logbook by a PFA or BMAA
Inspector. Definitions of Pilot Maintenance work is obtainable from the BMAA and PFA. Use only
approved spare parts and never fit damaged parts.
All servicing, maintenance and repair work on the aircraft, including the engine, propeller and
ballistic recovery system (if fitted), should be recorded in the Engine and Airframe Logbook.
Every 25 hours inspection
Engine: C
heck 25 hour inspection items in accordance with the ROTAX manual.
Fuel system
1. Check tank internally for cleanliness.
2. Check fuel filter for cleanliness.
3. Check all fuel lines for degradation.
Airframe
1. Check control stick for freedom without undue friction.
2. Check safety lock plates at the bearings at front and rear ends of control stick torsion tube.
3. Check that rod end bearings on elevator push rods suffer no bending at each extreme lateral
p
osition of stick (aileron limits).
4. Check all lock nuts for tightness.
Wing
1. Check internal bracing wires for adequate tension.
2. Check freedom of ailerons.
3. Check aileron and flap hinges for wear.
4. Check aileron and flap hinge bolts for tightness (cannot rotate)
Tail Empennage
1. Check rudder hinges for wear.
2. Check elevator hinges for wear.
3. Check rudder and elevator hinge bolts for tightness (cannot rotate)
4. Check rudder cables for wear at fairleads.
50-Hours Inspection
Engine:
Check inspection items in accordance with the ROTAX manual.
Additionally to the 25 hour schedule:
1. Check rudder and aileron cables for wear and damage.
2. Check brake pads, brake disks and brake function.
3. Lubricate the nose leg bearings with a grease gun at the upper and lower grease nipples.
4. Check rudder cable tension, 25 to 35 kgf.
5. Check aileron cable tension, 18 to
24 kgf
6.
Change the fuel filter.
7. Check stub axles for cracks.
8. Check seat support tube cannot rotate.

iKarus C42 Specifications

General

Manufacturer	Comco Ikarus
Type	Ultralight Aircraft
Engine	Rotax 912
Cruise Speed	160 km/h
Stall Speed	65 km/h
Seats	2
Height	2.3 m
Maximum Takeoff Weight	472.5 kg
Range	800 km
Service Ceiling	4000 m
Power Output	80 hp
Rate of Climb	5 m/s