This is a basic "hands-on" course for maintaining the airframe portion* of R22, R44, and R66 helicopters.  A thorough review and explanation of the Maintenance Manuals is provided. Successful completion of this course allows the mechanic to perform maintenance, repairs, and inspections in accordance with the R22, R44, and R66 Maintenance Manuals (MM). Refer to the MM Section 1.002 Maintenance Authorization.

Course attendance alone does not guarantee passing. Written exams are given daily and passing grades are required. Shop sessions will also be used to evaluate student's practical ("hands-on") performance. Approximately 1.5 hours of reading homework per night is required. Students will fail if do not pass each exam and if, in the opinion of the course instructor, they cannot safely inspect and maintain a Robinson helicopter.

The course is taught in English only. Students not fluent in the English language must provide their own interpreter with technical helicopter knowledge. Students not fluent in English will not be admitted without a professional interpreter.


Courses are only available to government-licensed airframe mechanics or foreign equivalent. This course does NOT have either Transport Canada (TC) or EASA approval. If you require a TC- or EASA-approved course, please contact the Maintenance Course Administrator ( for contact information on approved courses.


Government-issued licensed Airframe Mechanic, Licensed Aircraft Maintenance Engineer (LAME), or military equivalent for active-duty personnel attending on orders.

A working knowledge of aircraft hardware, piston engines, magneto ignition systems (R22/R44), turbine engines (R66), TIG welding of aircraft steel tubing, sheet-metal construction & finishing, metal fatigue, weight & balance, basic physics, and basic electronics.  Students must review subject areas they may be weak in prior to the course.


Course duration is 8 full days. Monday-Friday and Monday-Wednesday. No classes are held on Saturday and Sunday.

Instruction commences promptly at 8:00 a.m. and concludes at approximately 4:00 p.m. each day.  (Note: The last day of the course is a full day so plan your travel accordingly.)  Students should arrive at least 10 minutes early each morning to find a seat and get settled for the day's session.


US$1000.00 per person.  Reservation and tuition are valid only for the confirmed applicant and are not transferable.

Rescheduling requests must be made in writing and received by the Course Administrator at least 2 weeks before the class start date to avoid 50% penalty.

Cancellation must be in writing and received by the Course Administrator at least 2 weeks before the class start date and a 10% processing fee will be charged. No refund will be issued for cancellation requested within 2 weeks of the class start date. "No shows" forfeit their tuition entirely.


A completed enrollment form, tuition payment, copy (both sides) of the attendee's government-issued airframe mechanic license (or foreign equivalent), and photo identification must be received by RHC prior to confirmation of the course date. Enrollment is limited to 12 students per class on a first-come, first-serve basis; therefore, registration and tuition should be submitted as far in advance as possible to ensure confirmation. Classes are subject to cancellation if sufficient registration is not achieved two weeks prior to commencement of each scheduled class. IMPORTANT: Please do not make travel arrangements prior to course confirmation. If confirmation has not been received within 2 weeks, please contact the Course Administrator (


Courses are conducted at the Robinson Helicopter Company factory in Torrance, California.


Each student must bring the following to class.  DO NOT bring tools.  RHC provides all necessary tools.

  • Government-issued Airframe Mechanic license or Aircraft Maintenance Engineer license, and a government-issued photo identification
  • Calculator (most cell phones have adequate calculators)
  • Colored markers ("highlighters") in at least 4 different colors for tracing electrical schematics
  • Appropriate "shop" or "work" clothing (No sandals, sleeveless shirts, shorts, etc.)


Sky Ranch Engineering Manual. Purchase online at or call Robinson Customer Service to order and reference RHC Part No. R5630. This book is recommended, but not required.

*Engine Training

R22 & R44 engine maintenance training is available from Lycoming Engines:

R66 engine maintenance training is available from Rolls-Royce: