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147.A.50 requires that approved type and task training courses cover the specific knowledge and practical skills needed for maintenance on a particular aircraft type or for a specific maintenance task.
What it means in practice
Type training courses are designed to provide aircraft-type-specific knowledge and skills that supplement the general knowledge obtained through basic training. They are a prerequisite for type rating endorsement on a Part 66 licence. Task training courses cover specific maintenance tasks and may be required by operators or maintenance organisations for personnel performing particular activities.
The course content must be based on the aircraft maintenance manual, the type certificate holder's documentation, and any applicable operational requirements. Practical elements must include hands-on work with the actual aircraft type or representative training devices where available.
Key requirements
Type training courses must cover the aircraft systems, structures, and powerplant in sufficient detail for the relevant Part 66 category. The course must include both theoretical and practical elements. Course content must be kept current with aircraft modifications and service bulletins. The organisation must obtain approval for each type training course before delivery.
Common compliance gaps
A frequent finding is type training material that has not been updated to reflect recent aircraft modifications or airworthiness directives. Organisations also sometimes deliver type training courses using only classroom instruction without adequate practical elements, particularly when access to the actual aircraft type is limited.
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