Iran CAO Part-66 AMT Theory

Question counts and time limits are set per module by the CAO.IRI regulation and by the approved training organisation that runs the test, and they change, so no fixed figure is quoted here. Check the current CAO.IRI Part-66 documentation and your training organisation's examination schedule before you sit.

Part-66 basic knowledge modules normally require a high percentage per module rather than an average across the whole syllabus, and some authorities apply a separate rule for essay papers. The current pass mark is published by CAO.IRI and by your training organisation. Confirm it there rather than relying on second-hand figures.

Most modules are delivered as multiple-choice written tests, either computer-based or on paper depending on the approved organisation. Certain modules may use essay questions under the applicable national regulation. Ask your training organisation which format applies to each module you are booked for.

The difficulty is breadth, not trickery. Modules 11 and 12 carry the most content and take the longest to prepare, while mathematics, physics and electrical fundamentals punish weak calculation habits. Candidates who fail usually under-prepare one large systems module rather than misunderstanding everything.

Yes, failed modules can normally be re-sat, but the number of attempts, the waiting period and any compulsory retraining are set by CAO.IRI and your organisation. Retake rules are not fixed across centres, so obtain the current policy in writing before booking a resit.

Do the foundation modules first - mathematics, physics, electrical and electronic fundamentals, digital techniques - because later systems modules assume them. Then materials and hardware, maintenance practices, aerodynamics and human factors, then legislation, and leave your chosen stream, Module 11 or 12, for last when your background is strongest.

No. They are alternatives: Module 11 covers aeroplane aerodynamics, structures and systems, and Module 12 covers the helicopter equivalent. You sit the stream that matches the licence category you are applying for. Confirm with your training organisation which stream your category requires.

Three things: treating legislation and human factors as easy reading and skipping the detail, memorising systems diagrams without understanding function, and leaving the largest module too late. Another common error is assuming a resit is automatic; check the retake policy before you need it.

Fees, examination dates, application forms and licence processing are administered by the Civil Aviation Organization of Iran and, for training and testing, by your approved maintenance training organisation. Those figures are published by the authority and change, so use the official CAO.IRI channels rather than any third-party summary.