Basic Training & Module Examinations

What is EASA Part-66 Basic Training?

EASA Part-66 basic training is the structured theoretical and practical programme that provides the foundation knowledge required to qualify for an Aircraft Maintenance Licence (AML). Delivered by a Part-147 approved Maintenance Training Organisation, it covers all numbered knowledge modules applicable to the target licence category — from mathematics, physics, and electrical fundamentals through to aircraft structures, powerplant systems, and avionics. The programme is classroom-based with practical demonstrations and workshop exercises, and it concludes with formal module examinations administered by the training organisation under regulatory authority.

TRITECH holds Part-147 approval number LV.147.0004, issued by the State Agency "Civil Aviation Agency" of the Republic of Latvia. This approval covers basic training and examination authority for four licence categories: A1, B1.1, B1.3, and B2. Completing an approved basic training programme at TRITECH reduces the subsequent on-the-job experience requirement from three years to two, and ensures that all module examinations and Certificates of Recognition are issued under a single, regulated organisation — with no need to sit examinations at a separate examination body or national authority centre.

Category	Title	Duration
A1	Turbine Aeroplane Mechanic	Approx. 6 months
B1.1	Turbine Aeroplane Technician-Mechanic	Approx. 24 months
B1.3	Turbine Helicopter Technician-Mechanic	Approx. 24 months
B2	Avionics Technician	Approx. 24 months

Module Examinations

TRITECH's Part-147 approval includes full examination authority. This means every module examination is conducted directly at TRITECH's facility in Riga — under TRITECH's own invigilated, regulated examination process — without candidates needing to register with or travel to a separate examination body. Examinations follow the Part-66 multiple-choice format specified in EASA AMC 66.A.25. Upon passing each module, TRITECH issues a Certificate of Recognition (CofR) — the official evidence document submitted to the national aviation authority as part of the AML application. CofRs accumulate module by module throughout the programme. When all required modules are complete, the full set is submitted to the Civil Aviation Agency of Latvia (or the candidate's home authority) as the theoretical knowledge component of the licence application.

Each examination is timed and conducted in a controlled environment. Pass marks follow the Part-66 minimums — 75% for most modules. Candidates who do not achieve the pass mark on a first attempt may resit after the mandatory waiting period prescribed by Part-66. TRITECH's administration team manages the full examination schedule and provides candidates with structured revision guidance ahead of each sitting.

Entry requirements

• Completion of general secondary education (school-leaving certificate or equivalent)
• Sufficient English language proficiency to follow technical instruction and read EASA documentation — working knowledge of technical English is developed further during the programme
• No prior aviation qualification required — the Part-66 basic training programme is the starting point, not a continuation
• No prior engineering degree required — the module examination route is the official EASA pathway for candidates without a recognised academic aviation qualification
• Minimum age of 18 years at the time of AML application (training may begin before this age)

What comes after?

Completing basic training and accumulating all required Certificates of Recognition satisfies the theoretical knowledge requirement of Part-66. It is the first of three pillars required for AML issuance. Candidates then move into the on-the-job experience phase — a minimum of two years of documented practical maintenance work at a Part-145 approved organisation — before applying to the national aviation authority for the licence itself. Many candidates attend a type rating course during or immediately after the experience phase, as a type rating endorsement is required before an AML holder can independently certify maintenance work on a specific aircraft type.

For a complete picture of the full licensing sequence — from first module through to type-rated AML — see the EASA Licensing Path overview.