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Free Part-66 Module 5 Exam Prep

EASA Part-66 Module 5 - Digital Techniques / Electronic Instrument Systems

Prepare for the Part-66 Module 5 exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

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Part-66 Module 5 Quick Facts

Time to Get Licensed

Most candidates complete a Part-147 Module 5 course over 1-2 weeks then sit the exam

From start to license in hand

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Free Part-66 Module 5 Prep Tools

100 Practice Questions

Numbering systems, ARINC 429, logic gates, fibre optics, ESDS, EFIS/ECAM/EICAS and more, each with a worked explanation

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Get instant explanations of ARINC 429 word fields, De Morgan logic equivalents and ESDS handling rules

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Full Module 5 practice with no signup required, built to the 2023/989 syllabus

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What You'll Study

16 chapters covering the exam topics in this guide

Part-66 Module 5 Exam Details

EASA Part-66 Module 5 - Digital Techniques / Electronic Instrument Systems

Administered by EASA (exams sat at National Aviation Authorities or approved Part-147 organisations)

Official Source
75% per module
Passing Score
B2:
Questions
B2:
Minutes
Varies by NAA/Part-147 organisation (approximately EUR 50-230 per module sitting)
Exam Fee
Study time: 60-90 hours (B2 candidates)
Prerequisites: None formally, but Module 1 (Mathematics) and Module 4 (Electronic Fundamentals) knowledge is strongly recommended
Valid for: Examination credit valid 10 years; licence renewed per Part-66

Exam Content Breakdown

Based on the official EASA (exams sat at National Aviation Authorities or approved Part-147 organisations) content outline

Numbering Systems & Data Conversion12.5%

Binary, octal and hexadecimal conversions, binary coded decimal (BCD), and analogue-to-digital and digital-to-analogue conversion including resolution and sampling; 5.2-5.3: 9 of 72 B2 questions (AMC1 Appendix II)

Data Buses7%

ARINC 429 word format (label, SDI, data, SSM, parity), 12.5/100 kbit/s speeds, twisted shielded pair, simplex topology, ARINC 629 and AFDX/ARINC 664 switched Ethernet; 5.4: 5 of 72 B2 questions (AMC1 Appendix II)

Logic Circuits11%

AND, OR, NOT, NAND, NOR and XOR gates, truth tables, De Morgan equivalents, universal gates, flip-flops (SR, JK), counters and sequential versus combinational logic; 5.5: 8 of 72 B2 questions (AMC1 Appendix II)

Computer Structure & Software33%

CPU/ALU, RAM/ROM/PROM/EEPROM memory, address/data/control buses, word length, multiplexing, clock timing, Integrated Modular Avionics and software configuration control, integrated circuits (encoders and decoders); 5.6-5.9 and 5.13: 24 of 72 B2 questions (AMC1 Appendix II)

Fibre Optics & Electronic Displays10%

Total internal reflection, core/cladding refractive index, multimode/single-mode fibre, EMI immunity, CRT, LED and LCD display principles, pixels, colour coding and reversion; 5.10-5.11: 7 of 72 B2 questions (AMC1 Appendix II)

ESDS, EMC & Electromagnetic Environment12.5%

Electrostatic sensitive device handling, wrist straps and anti-static packaging, EMC/EMI, HIRF, lightning protection, bonding, static dischargers and cable shielding; 5.12 and 5.14: 9 of 72 B2 questions (AMC1 Appendix II)

Typical Electronic / Digital Aircraft Systems14%

EFIS (PFD/ND), ECAM and EICAS, FMS/CDU, GNSS, TCAS, GPWS/EGPWS, IRS/AHRS, ADIRU, fly-by-wire, BITE and central maintenance computers; 5.1 and 5.15: 10 of 72 B2 questions (AMC1 Appendix II)

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What's Next After the Part-66 Module 5?

After passing the Part-66 Module 5, you can pursue these career paths

EASA Part-66 Module 4 - Electronic Fundamentals

Semiconductor, gate and amplifier theory underpinning the digital techniques in Module 5

Coming Soon

EASA Part-66 Module 13 - Aircraft Aerodynamics, Structures and Systems

B2 avionics systems module building on the digital and display knowledge from Module 5

Coming Soon

Part-66 Module 5 Exam FAQ

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