9 Series Heavy Maintenance

Applicable engine types

912 Series, 914 Series.

Course length

min. 16 hours, recommended 24 hours.

Technical publication reference

The current version of:
  • Installation Manual
  • Operators Manual
  • Maintenance Manual (Line)
  • Maintenance Manual (Heavy)
  • Illustrated Parts Catalog
  • Service Information (ASB, SB, SI, SL)


Additional to Familiarization course, Service course and Maintenance course; this course gives the technician the necessary knowledg required to repair ROTAX® 912 Series, 914 Series Aircraft Engines and its components (mainly performed in a workshop environment).


Completion of a Service and Maintenance ROTAX® 912 Series / 914 Series course within the last 24 months
Technician must show/demonstrate experience on maintaining 912 Series / 914 Series for a min. of 2 years

Intended audience

Maintenance personnel seeking in-depth Heavy Maintenance information on ROTAX® 912 Series / 914 Series

Topics and learning objects

Detailed Heavy Maintenance issues and procedures like hands-on tear down, inspection and re-assembly of the following components but not limited to:
  • “Core engine module”
    • Cylinder heads
    • Cylinder/pistons
    • Intake/exhaust system
    • Starter
    • Oil pump
    • Turbo charger
    • Ignition housing/water pump/sprag clutch
    • Valve train
    • Exchange of block engine
  • “Carburetor specific module”
    • Carburetors
    • Ignition system
    • Gearbox
    • Servo motor and TCU (only 914 Series)
    • Sensors
    • Wiring harness
    • Airbox
    • Splitting of crankcase
    • Disassembly/assembly of the overload clutch


Yes; on engine and different components in detail; must be able to demonstrate technical confidence on the given learning objects.


Multimedia presentation. Hands-on training.

Training aids, equipment

Fully equipped training engine. Fully equipped special tools for service, maintenance and heavy maintenance.

Intended agenda

  • 5% introduction general
  • 30% lecture
  • 60% practical/hands-on
  • 5% exam/test


Theoretical. Open books are encouraged as this promotes proper research into technical publications.

Skills/Competence acquired

Repair components and engine ROTAX® 912 Series / 914 Series.

Name of certification/eligibility/validity

Heavy Maintenance ROTAX 912 Series / 914 Series.
Eligibility to attend an Overhaul course for ROTAX® Aircraft Engines.
Valid only for 24 month from date of issue.

Recurrent training

With focus on the amendments and changes to ICAs since the last course.