IA Practice Test
Updated for October 2026
IA (Inspection Authorization Certification) is a critical qualification for aviation mechanics who wish to take on more advanced roles within the field. Certified Inspection Authorization (IA) holders are authorized to approve major repairs, conduct airworthiness inspections, and sign off on crucial aircraft maintenance. This certification opens doors to higher-paying positions and enhances job security in the aviation industry. Practice with the free IA - Inspection Authorization Certification practice test on PracticeTestGeeks (7 questions with answer explanations).
- The FAA Inspection Authorization (IAR) knowledge test has 50 scored questions. Any unscored validation questions are not counted in that number. (Federal Aviation Administration (FAA), Flight Standards Service)
- The passing score on the FAA Inspection Authorization (IAR) knowledge test is 70. (Federal Aviation Administration (FAA), Flight Standards Service)
- An applicant who fails the FAA Inspection Authorization written test may not apply to retest until at least 90 days after the failure. To retest, they bring the failed test report and a newly endorsed Form 8610-1. (ecfr.gov)
- Every FAA Inspection Authorization expires on March 31 of each odd-numbered year, so the current authorizations expire on March 31, 2027. (ecfr.gov)
- An FAA Inspection Authorization is renewed for 2 years during March of each odd-numbered year. The holder must complete one qualifying activity in each year: an annual inspection for every 90 days, two major repairs or alterations for every 90 days, a progressive inspection, an 8-hour refresher course, or an oral test with an FAA inspector. (ecfr.gov)
- The FAA Inspection Authorization (IAR) knowledge test is given only at testing centers authorized to administer the IAR test. Candidates need an FAA-endorsed Form 8610-1, and the FAA's computer testing supplement FAA-CT-8080-8D is used with the test. (Federal Aviation Administration (FAA), Flight Standards Service)
- To be eligible for an FAA Inspection Authorization, an applicant must hold both the airframe and powerplant mechanic ratings, held for at least 3 years in total. They must also have actively maintained aircraft for the previous 2 years, have a fixed base of operations, have access to the needed equipment and inspection data, and pass the IA written test. (ecfr.gov)
Facts verified Oct 21, 2026 against Federal Aviation Administration (FAA), Flight Standards Service. Dates that have passed are removed automatically.
IA Exam at a Glance
| Item | Detail | Official source |
|---|
| Number of questions | 50 questions | Federal Aviation Administration (FAA), Flight Standards Service |
| Passing score | 70% | Federal Aviation Administration (FAA), Flight Standards Service |
| Retake policy | Wait at least 90 days after a failure | ecfr.gov |
| Validity | Expires March 31 of each odd-numbered year (next: March 31, 2027) | ecfr.gov |
| Renewal | Renew every 2 years in March of odd years; one qualifying activity each year | ecfr.gov |
| Delivery | Computer-based, only at authorized IAR testing centers | Federal Aviation Administration (FAA), Flight Standards Service |
| Eligibility | A&P mechanic for 3+ years, 2 years active maintenance, fixed base, equipment/data access, pass the written test | ecfr.gov |
| Registration deadline | Test within 30 days of FAA endorsement | Federal Aviation Administration (FAA), Flight Standards Service |
Facts verified Oct 21, 2026 against Federal Aviation Administration (FAA), Flight Standards Service. Dates that have passed are removed automatically.
IA Practice Test Questions
Prepare for the IA - Inspection Authorization Certification exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
Free IA - Inspection Authorization Certification Study Tools
Interactive IA - Inspection Authorization Certification resources on PracticeTestGeeks, free to start:
Key Takeaways
Free Inspection Authorization Practice Test Online
- Inspection Authorization Certification is essential for aviation mechanics aiming to advance their careers.
- The certification enables mechanics to perform and approve critical inspections and airworthiness determinations.
- The IA exam focuses on regulations, aircraft maintenance, and specific inspection protocols.
- IA-certified professionals enjoy diverse job opportunities, often with higher salary prospects in the aviation industry.
Eligibility for Inspection Authorization
To qualify for the IA (Inspection Authorization Certification), applicants must meet these FAA requirements:
- Mechanic Certificate: Possess an Airframe and Powerplant (A&P) mechanic certificate.
- Work Experience: Have at least three years of experience as a practicing, active mechanic.
- Location: Work within the jurisdiction of the FAA’s Flight Standards District Office (FSDO) where the applicant is applying for IA.
- Work Activity: Demonstrate that they have worked on inspection, maintenance, and repair of aircraft for at least two years.
Understanding the IA Exam
The IA exam is designed to assess an applicant's understanding of:
- Federal Aviation Regulations (FARs): Thorough knowledge of relevant FARs, such as Part 43 and Part 91, is essential.
- Inspection and Maintenance: Understanding of inspection protocols and procedures, including corrosion control and structural repairs.
- Airworthiness: Ability to determine an aircraft's airworthiness and adhere to compliance standards.
The exam format primarily consists of multiple-choice questions, and a passing score of at least 70% is required. Applicants should be familiar with up-to-date aviation regulations and inspection methodologies.
IA Certification Exam Preparation Tips
To succeed in the IA (Inspection Authorization Certification) exam, consider the following preparation strategies:
- Review FAA Advisory Circulars: These documents provide insights and updates on current FAA standards and practices.
- Practice Exams: Taking practice exams simulates real test conditions and familiarizes applicants with the exam format.
- Study Regulations: Focus on Parts 43, 65, and 91 of the FARs, as these cover key aspects of inspection and maintenance responsibilities.
- Use FAA Resources: The FAA provides various resources, such as the FAA Inspection Authorization Information Guide, which can be invaluable for exam preparation.
Types of Inspection Authorization
The Inspection Authorization allows mechanics to perform the following types of inspections and sign-offs:
- Annual Inspections: IA-certified mechanics can conduct annual inspections on aircraft, ensuring that they meet safety and regulatory standards.
- Major Repairs and Alterations: IA holders can sign off on major repairs or modifications, verifying compliance with FAA standards.
- Progressive Inspections: For aircraft owners who opt for a continuous inspection program, IA mechanics can perform these regular assessments.
Career Opportunities with an IA Certification
An IA (Inspection Authorization Certification) opens the door to a variety of specialized roles within the aviation maintenance field, such as:
- Lead Aircraft Inspector: Responsible for overseeing maintenance activities and ensuring compliance with safety regulations.
- Regulatory Compliance Officer: Ensures all repairs and inspections meet FAA standards.
- Aircraft Maintenance Manager: Manages maintenance teams and coordinates inspections, repairs, and safety checks.
In addition to working with airlines or private companies, IA holders may also find opportunities in government agencies, including the FAA.
Renewing Your IA Certification
The IA certification must be renewed annually, with mechanics needing to meet the following requirements to retain their authorization:
- Activity Requirement: Perform at least one annual inspection every 12 months.
- Training Requirement: Complete FAA-approved training courses or participate in aviation events.
- Compliance Documentation: Provide documentation demonstrating compliance with renewal requirements, often including inspections and training logs.
Renewal ensures that IA-certified professionals stay current with evolving regulations and industry practices.
Conclusion
Achieving IA (Inspection Authorization Certification) represents a significant milestone for aviation mechanics, offering career advancement, higher earning potential, and access to specialized positions within the aviation industry. IA certification is recognized by employers and the FAA alike as a mark of expertise in aviation maintenance and inspection.
By meeting the rigorous standards set forth by the FAA, IA-certified professionals not only contribute to the safety of aircraft operations but also enjoy rewarding careers. Preparation for the IA exam requires dedication and thorough understanding of FAA regulations, but the benefits—both in terms of career growth and financial reward—make it a valuable investment.
Pros
- Industry-recognized credential boosts your resume
- Higher earning potential (10-20% salary increase on average)
- Demonstrates commitment to professional development
- Opens doors to advanced career opportunities
Cons
- Exam preparation requires significant time investment (4-8 weeks)
- Certification fees can be $100-$400+
- May require continuing education to maintain
- Some employers may not require certification
Sample IA - Inspection Authorization Certification Practice Questions
Try these questions from our free IA - Inspection Authorization Certification practice tests. The correct answer and an explanation follow each question.
What does a differential compression test on a reciprocating engine measure?
- A. Fuel mixture ratio at full power
- B. Combustion chamber integrity by comparing cylinder pressure to regulated input pressure
- C. Magneto timing relative to top dead center
- D. Oil pressure at cruise RPM
Answer: B. Combustion chamber integrity by comparing cylinder pressure to regulated input pressure
A differential compression test applies regulated air to each cylinder and measures the pressure retained, indicating the condition of rings, valves, and cylinder walls.
What does an IA look for when inspecting aircraft antenna mounts during an annual?
- A. That all antennas are painted to match the aircraft color scheme
- B. Corrosion at the mount, cracked radomes, loose mounting hardware, and proper bonding to the airframe
- C. That antenna length matches frequency specifications for the installed radio
- D. That all antennas are vertical polarization type
Answer: B. Corrosion at the mount, cracked radomes, loose mounting hardware, and proper bonding to the airframe
Antenna mount inspection focuses on structural security, corrosion at the mount plate, and proper electrical bonding to ensure the antenna functions correctly and doesn't create a structural weak point.
Which system requires an IA to inspect both the flight control surfaces AND the control system cables, pulleys, and turnbuckles during an annual?
- A. Only the primary flight controls (ailerons, elevator, rudder)
- B. The entire flight control system including secondary controls, trim, and associated hardware
- C. Only the trim tabs and flaps as the primary controls are self-evident
- D. Only the control surfaces, not the internal cable runs
Answer: B. The entire flight control system including secondary controls, trim, and associated hardware
Appendix D requires inspection of the entire flight control system including surfaces, cables, pulleys, bellcranks, turnbuckles, and all related hardware.
What is required in a maintenance entry for return to service?
- A. Only a date and signature
- B. Work summary and FAA certificate number
- C. Engine serial number
- D. Parts list
Answer: B. Work summary and FAA certificate number
A maintenance entry for return to service must include a comprehensive work summary and the FAA certificate number of the person performing the work. As per 14 CFR Part 43.9, this entry must detail the work performed, the date of completion, the name of the person, and their certificate number and type, ensuring accountability and a clear record of maintenance.
Take the full IA - Inspection Authorization Certification practice test
(IA) Inspection Authorization Certification Questions and Answers
How long does it take to obtain an IA Certification?
The time required varies depending on an applicant’s readiness, but typically it can take several months, including exam preparation, testing, and the FAA’s application review.
Are there any fees for the IA exam and certification?
While there is no direct fee for taking the IA exam, candidates should consider the costs of training materials, practice exams, and ongoing education required for certification and renewal.
How is IA certification different from an A&P license?
An A&P license allows mechanics to perform standard repairs and maintenance, while an IA certification enables them to approve major repairs and modifications, inspect aircraft for airworthiness, and perform annual inspections.
Can IA certification improve job prospects?
Yes, IA certification significantly enhances job prospects, providing mechanics with advanced roles, higher salaries, and job security due to their specialized skills.
How many questions are on the IA?
The FAA Inspection Authorization (IAR) knowledge test has 50 scored questions. Any unscored validation questions are not counted in that number. (Verified Oct 21, 2026 against Federal Aviation Administration (FAA), Flight Standards Service.)
What is the passing score for the IA?
The passing score on the FAA Inspection Authorization (IAR) knowledge test is 70. (Verified Oct 21, 2026 against Federal Aviation Administration (FAA), Flight Standards Service.)