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Free CAAS SAR-66 Aviation Legislation (M10) Practice Questions

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Sample Practice Questions

Try these 10 sample questions from the CAAS SAR-66 Aviation Legislation (M10) practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

  1. 1What does the ICAO Council help develop for inclusion in the Annexes to the Chicago Convention?

    1. A.Individual aircraft maintenance releases
    2. B.International Standards and Recommended PracticesCorrect answer: B
    3. C.National aircraft maintenance licences
    4. D.Manufacturer-specific overhaul work cards

    Explanation: The source states "international Standards and Recommended Practices (SARPs)". The Council directs international SARPs work. Maintenance releases, national licences and manufacturer work cards operate at different implementation levels.

    Reference: ICAO – Functions of the Council — Functions of the Council, paragraphs 1–3

  2. 2Under SAR-21, which item is a product rather than merely an article used on a product?

    1. A.A hydraulic sealing compound
    2. B.An aircraft engineCorrect answer: B
    3. C.A manufacturing surface-treatment process
    4. D.An instrument mounting bracket

    Explanation: The requirement states "“Product” means an aircraft, engine or propeller.". The defined product classes include an engine. A material, process or constituent part falls within the article concept rather than becoming a product.

    Reference: SAR-21 Certification of Products and Articles and of Design and Production Organisations — SAR-21.10(o), p.1-2

  3. 3Which combination meets the SAR-39.10 grounds for CAAS to issue an Airworthiness Directive?

    1. A.A condition is operationally inconvenient but has no unsafe effect
    2. B.An unsafe condition exists and is likely to affect other examples of the same designCorrect answer: B
    3. C.An unsafe condition is confined to one example and is not likely to affect others
    4. D.A service bulletin is published without a determination that an unsafe condition exists

    Explanation: SAR-39.10 requires "an unsafe condition exists in any aircraft or aircraft component; and" that "that condition is likely to exist or develop in any other aircraft or aircraft component of the same design.". Both the unsafe condition and same-design likelihood are required. Inconvenience alone, an isolated condition lacking that likelihood, or bulletin publication without the unsafe-condition determination does not meet both grounds.

    Reference: SAR-39 Airworthiness Directives — SAR-39.10(1), p.1-1

  4. 4An engineer holds an appropriate SAR-66 aircraft maintenance licence but has no SAR-145 certification authorisation. Can the licence alone support issuing an aircraft certificate of release to service?

    1. A.Yes, if the engineer has worked on that aircraft before
    2. B.No, an appropriate SAR-145 authorisation is also neededCorrect answer: B
    3. C.Yes, if the operator verbally requests the maintenance release
    4. D.Yes, if recency requirements are met without organisation authorisation

    Explanation: SAR-66 states "The aircraft maintenance licence alone does not permit the holder to issue certificates of release to service in respect of aircraft.". The required SAR-145 certification authorisation is additional to the licence. Prior work, an operator’s verbal request and compliance with licence recency conditions do not themselves supply that authorisation.

    Reference: SAR-66 Aircraft Maintenance Licensing — SAR-66.20(b), note, p.1-3

  5. 5A SAR-145 organisation is preparing a repair. Which maintenance data must it hold and use?

    1. A.Any edition that was current when the aircraft was built
    2. B.Applicable current maintenance data for the approved workCorrect answer: B
    3. C.An applicable superseded instruction when the customer prefers it
    4. D.Any locally copied instruction regardless of amendment status

    Explanation: SAR-145 states that the organisation "must hold and use applicable current maintenance data". Present applicability and currency are both necessary. Build-date editions, customer preference for superseded instructions and unchecked local copies do not establish both.

    Reference: SAR-145 Approved Maintenance Organisations — SAR-145.45(a), p.1-6

  6. 6What is the minimum retention period for a SAR-147 student's training, examination and assessment records after course completion?

    1. A.Two years
    2. B.Five yearsCorrect answer: B
    3. C.Seven years
    4. D.Ten years

    Explanation: The source states "keep all student training, examination and assessment records for at least five years". The five-year period runs from completion of that student's course. The question asks the minimum, not whether a longer retention period could also comply.

    Reference: SAR-147 Maintenance Training Organisations — SAR-147.125(a), p.1-3

  7. 7Who remains responsible under SAR Chapter 4.1 for ensuring an aircraft is maintained in an airworthy condition?

    1. A.Only the aircraft's original manufacturer
    2. B.Only the organisation supplying spare parts
    3. C.Only the pilot who last flew the aircraft
    4. D.The aircraft's owner or operatorCorrect answer: D

    Explanation: The source states "The owner or operator of an aircraft is responsible that maintenance work on his aircraft is conducted in accordance with the Singapore airworthiness requirements". The owner/operator has the overall airworthiness responsibility. A manufacturer, supplier or individual pilot's involvement does not replace it.

    Reference: Singapore Airworthiness Requirements — Chapter 4.1, paragraph 2.1

  8. 8For an ANR-121 AOC holder, what is the function of the DGCA-approved Minimum Equipment List?

    1. A.To set generic manufacturer relief before operator-specific approval
    2. B.To define conditions for operation with specified unserviceable itemsCorrect answer: B
    3. C.To certify that each deferred defect has already been rectified
    4. D.To approve unlisted defects without a separate DGCA permission

    Explanation: The guidance states "The MEL will specify the conditions under which an aircraft may be authorised to continue in service". The approved operator MEL defines conditional item-specific relief. Generic master-level relief is not the operator MEL, inclusion does not certify rectification, and unlisted defects are not automatically authorised.

    Reference: AC 121-6-1 Guidance on Instrument and Equipment Requirements in ANR-121 — Guidance 121REG82, paragraph 1, p.4

  9. 9Which role may the ICAO Council perform when Member States disagree on a matter relevant to the Chicago Convention?

    1. A.Certify each disputing State's aircraft
    2. B.Replace the disputing States' legislatures
    3. C.Arbitrate between the Member StatesCorrect answer: C
    4. D.Issue maintenance authorisations to engineers

    Explanation: The source states "arbitrate between Member States". Arbitration is an international dispute role. Aircraft certification, legislative replacement and individual maintenance authorisation are different functions.

    Reference: ICAO – Functions of the Council — Functions of the Council, paragraphs 1–3

  10. 10How does CAAS recognise an acceptable foreign type certificate under SAR-21 Subpart A?

    1. A.By issuing a national type certificate for the same design
    2. B.By treating the foreign maintenance release as design approval
    3. C.By granting a letter of acceptance of type certificateCorrect answer: C
    4. D.By converting every component release into an STSO approval

    Explanation: The requirement states "the grant of a letter of acceptance of type certificate". CAAS accepts a foreign type certificate through a letter of acceptance; the accompanying note says CAAS does not grant type certificates. Maintenance and component releases serve different purposes.

    Reference: SAR-21 Certification of Products and Articles and of Design and Production Organisations — SAR-21.100(b), p.1-2

Exam Review

About CAAS SAR-66 Aviation Legislation (M10)

CAAS SAR-66 Aviation Legislation (M10) · SG

Key exam facts

Provider
Civil Aviation Authority of Singapore (CAAS) specifies and administers the SAR-66 basic examinations; Aspeq supplies the CAAS booking portal.
Format
Invigilated multiple-choice knowledge examination at an examination venue. Each official MCQ has three alternatives and one correct answer. The separate M50 essay examination is excluded.
Exam questions
Total questions: 40.
Time limit
50 minutes for the M10 MCQ paper in Categories A, B1 and B2; this is the paper time, not M50 or check-in time.
Passing score
75% for the SAR-66 module; no penalty marking on the MCQ paper.
Exam fee
SGD 87.20 per examination paper under the Air Navigation Order, Twelfth Schedule 11(1)(a), from 1 January 2026. This is the prescribed payable charge after the amendment replacing SGD 80 with SGD 87.20; CAAS also states that AML examination fees attract 9% GST from that date. Cancellation and rescheduling have separate statutory charges (SGD 30 and SGD 20).

Topics covered

  • Regulatory Framework

    • Role of International Civil Aviation Organisation
    • Role and responsibilities contracting states
    • Air Navigation Act
    • Air Navigation Order
    • Air Navigation Regulations
    • Singapore Airworthiness Requirements
    • Airworthiness Notices
    • Advisory Circulars
    • Notices of Amendment and Information Circulars
  • SAR-21 Certification of Products and Design and Production Organisations

  • SAR-39 Airworthiness Directive

  • SAR-66 Certifying Staff – Maintenance

  • SAR-145 Approved Maintenance Organisation

  • SAR-147 Approval of Maintenance Training Organisation

  • Requirements on Aircraft Maintenance

    • Maintenance Responsibility
    • Maintenance Management
    • Aircraft Maintenance Programme (including CMR)
    • Aircraft Technical Log
    • Maintenance Records and Log Books
    • Accident / Occurrence Reporting
  • Others

    • Minimum Equipment List / Master Minimum Equipment List
    • Dispatch Deviation List
    • Services Bulletins / Manufacturer Service Information
    • Modifications and Repairs
    • Continuing Airworthiness
    • Test Flights
    • ETOPS – Maintenance and dispatch requirements
    • Any new aircraft maintenance related requirements published by CAAS

How to prepare

Work through the topics, read the explanation after each answer, and revisit the areas where you miss questions. Use the official outline and reference materials below to guide your study.

These independent practice questions are not actual exam items and do not guarantee a passing result.

Frequently asked questions

What is the exam format?

Invigilated multiple-choice knowledge examination at an examination venue. Each official MCQ has three alternatives and one correct answer. The separate M50 essay examination is excluded.

How many questions are on the exam?

Total questions: 40.

How long is the exam?

50 minutes for the M10 MCQ paper in Categories A, B1 and B2; this is the paper time, not M50 or check-in time.

What is the passing score?

75% for the SAR-66 module; no penalty marking on the MCQ paper.

How much does the exam cost?

SGD 87.20 per examination paper under the Air Navigation Order, Twelfth Schedule 11(1)(a), from 1 January 2026. This is the prescribed payable charge after the amendment replacing SGD 80 with SGD 87.20; CAAS also states that AML examination fees attract 9% GST from that date. Cancellation and rescheduling have separate statutory charges (SGD 30 and SGD 20).

Official sources and references

Confirm current exam arrangements with the exam provider.