Part-66 Prep

B3 module exam practice

B3 licence: piston non-pressurised aeroplanes up to 2,000 kg. 6,169 original questions across 13 module papers, each sat separately with a 75% pass mark. Read the B3 licence guide

Free

Start with the diagnostic

20 questions across your modules in 20 minutes. Shows which modules need the most work.

Pro

Mixed-module paper

60 questions from every module in 75 minutes, weighted by real paper size. A new draw each time.

Module papers

Paper 1 and quick practice are free for every module. Sizes follow Appendix II to Part-66: EASA (Reg. (EU) 2023/989) and UK CAA rules differ for some modules.

EASA vs UK CAA paper sizes for B3

Three-option questions, about 75 seconds each, 75% pass mark, no negative marking. Essays are 20 minutes each.

ModuleEASAUK CAA
1. Mathematics32 Q / 40 min28 Q / 35 min
2. Physics32 Q / 40 min28 Q / 35 min
3. Electrical fundamentals24 Q / 30 min24 Q / 30 min
4. Electronic fundamentals20 Q / 25 min8 Q / 10 min
5. Digital techniques / electronic instrument systems20 Q / 25 min16 Q / 20 min
6. Materials and hardware80 Q / 100 min60 Q / 75 min
7. Maintenance practices80 Q / 100 min + 2 essays60 Q / 75 min + 2 essays
8. Basic aerodynamics24 Q / 30 min20 Q / 25 min
9. Human factors28 Q / 35 min16 Q / 20 min + 1 essay
10. Aviation legislation44 Q / 55 min32 Q / 40 min + 1 essay
11C. Piston aeroplane aerodynamics, structures and systems (B3)60 Q / 75 min60 Q / 75 min
16. Piston engine76 Q / 95 min68 Q / 85 min
17B. Propeller (B3)32 Q / 40 min28 Q / 35 min

Resits: wait 90 days after a fail (30 after tailored Part-147 retraining). EASA allows 3 attempts per module in any 12 months; UK CAA allows 3 consecutive attempts, then a 1-year wait.

Exam-day checklist

  • Book each module exam with a Part-147 approved training organisation or your competent authority's exam centre (UK CAA or your EASA member-state authority).
  • Bring passport or national ID card, and any booking confirmation the exam centre asks for.
  • You will be asked to confirm in writing how many times you have attempted this module in the last 12 months.
  • Check with the exam centre which items are allowed (calculator, drawing instruments). Phones, notes and talking are not allowed; proven cheating means a 12-month ban from all exams.
  • Multiple choice: 3 options, one correct, about 75 seconds per question, pass mark 75%, no negative marking.
  • Essays (20 minutes each, 75% of key points): EASA - Module 7 only (2 essays, +40 min); UK CAA - Modules 7, 9 and 10.
  • If you fail: wait 90 days before a retake (30 days after a tailored Part-147 retraining course). EASA: max 3 attempts in 12 months. UK CAA: 3 consecutive attempts, then a 1-year wait.
  • Keep every certificate of recognition: module passes count for a licence application for 10 years.