Rotax 912 Series Maintenance Manual page 52

2) Special checks
2.1) Checking of propeller gearbox / engine.
Engine check after propeller strike resulting in heavy propeller blade damage.
2.1.1)
2.1.2)
Effectivity: 912 Series
MAINTENANCE MANUAL
Propeller gearbox with integrated overload clutch
- Inspection of engine for damage.
If any damage is detected, inspect, repair or overhaul the engine in
accordance with the ROTAX
ness.
- The scope of work depends on the seriousness of the damage.
- Inspect all systems for correct function.
- Inspect additional equipment (external alternator, hydraulic gover-
nor, ignition unit, coolant and oil hoses) for damage.
- Observe directives of the aircraft manufacturer.
- Inspect drive of the hydraulic governor (if fitted)
- Remove gearbox.
The gearbox must be inspected, repaired or overhauled in accord-
ance with the ROTAX
- Detailed inspection of all gearbox components.
- NDT for cracks on gear cover, propeller shaft and gear set.
- Inspect the crankshaft for out-of-roundness. See Chapter 14.4.15 of
Heavy MM, p/n 899 601.
Propeller gearbox without integrated overload clutch
- The whole engine must be inspected, repaired or overhauled in
accordance with the ROTAX
ness.
- Detailed inspection of affected engine components.
- NDT for cracks on crankcase, gear cover, flywheel hub, propeller
shaft and gear set.
- Crankshaft must be overhauled
- Inspect additional equipment (external alternator, hydraulic gover-
nor, ignition unit, coolant and oil hoses) for damage.
- Observe directives of the aircraft manufacturer.
AIRCRAFT ENGINES
instructions for continued airworthi-
®
instructions for continued airworthiness.
®
instructions for continued airworthi-
®
05-50-00
page 2
Rev. 1, Jan. 01/2002