FAA Inspection Authorization (IA) study materials
FAA Inspection Authorization (IA) study resources

FAA Inspection Authorization (IA) study plan

FAA Inspection Authorization (IA) · Give each week a clear focus.

8 weeks · About 8 hours per week

Week 1

Regulations (14 CFR parts 1, 21, 39, 43, 45, 65, 91, 121, 135) and Airworthiness Directives

  • Map each Part in the domain list (1, 21, 39, 43, 45, 65, 91, 121, 135) to its regulatory purpose and the inspection-relevant sections inside it

  • Build a citation index of the sections that govern who may inspect, approve, and return an aircraft to service

  • Distinguish major repair, major alteration, minor repair, and minor alteration using Part 1 definitions and Part 43 Appendix A

  • Trace an airworthiness directive from Part 39 issuance through compliance, alternate means of compliance, and Part 43 recording

Your checkpoint

A citation index of at least 40 section numbers, each with a one-line statement of what it requires of an IA

Week 2

Regulations (14 CFR parts 1, 21, 39, 43, 45, 65, 91, 121, 135) and Airworthiness Directives & Maintenance Records, Approvals for Return to Service, and Recordkeeping Requirements

  • Apply AD applicability language by make, model, serial number, and part number to decide whether an AD reaches a specific aircraft

  • Calculate recurring AD compliance intervals and next-due dates from a sample AD and calendar

  • Draft maintenance record entries that satisfy 43.9 content, form, and signature requirements

  • Classify records under 91.417 by retention period (permanent versus until superseded or one year)

Your checkpoint

A records audit checklist covering 10 record types with the correct retention period and regulatory citation for each

Week 3

Maintenance Records, Approvals for Return to Service, and Recordkeeping Requirements & Annual and Progressive Inspections, Including Part 43 Appendix D Scope and Detail

  • Assemble a return-to-service approval matrix showing who may sign for annual, 100-hour, progressive, and preventive maintenance actions

  • Break Appendix D scope and detail into its airframe, engine, propeller, and appliance categories and paraphrase each item

  • Compare annual, 100-hour, progressive, and continuous inspection program requirements, including who may approve each

  • Separate owner/operator preventive maintenance from mechanic-required work using Part 43 Appendix A

Your checkpoint

An Appendix D cross-reference table listing at least 25 line items mapped to their paragraph letters and inspection category

Week 4

Annual and Progressive Inspections, Including Part 43 Appendix D Scope and Detail & Major Repairs, Major Alterations, Field Approvals, and Form 337 Documentation

  • Justify a major repair versus major alteration determination for six realistic scenarios using Appendix A criteria

  • Complete every field of FAA Form 337 for a hypothetical alteration, including supporting approved data references

  • Compare field approval, DER approval, and STC pathways and select the correct one for each scenario

  • Sequence the steps and required submissions for approving and revising a progressive inspection program

Your checkpoint

A fully drafted Form 337 with a supporting-data write-up plus a pathway decision flowchart covering six scenarios

Week 5

Major Repairs, Major Alterations, Field Approvals, and Form 337 Documentation & Type Certificate Data Sheets, Specifications, Airworthiness Limitations, and Instructions for Continued Airworthiness

  • Read a type certificate data sheet and extract certification basis, operating limitations, and required equipment

  • Locate airworthiness limitations sections and determine whether an item is FAA-approved and mandatory

  • Compare instructions for continued airworthiness requirements across product categories under Part 21

  • Determine when a design change triggers new ICA content or a TCDS revision

Your checkpoint

An annotated TCDS summary worksheet for two aircraft models with limitations, equipment, and ICA obligations extracted and flagged

Week 6

Aircraft Structures and Systems Inspection (airframe, engines, propellers, appliances) & Weight and Balance and Equipment Lists

  • Identify inspection points and common defect locations for wing attach, empennage, landing gear, and pressure vessel areas

  • Trace engine, propeller, and appliance inspection items back to manufacturer ICA and AD requirements

  • Recompute weight and balance after an equipment change using an equipment list and empty-weight CG data

  • Determine when an equipment list change requires a revised weight and balance report or a Form 337

Your checkpoint

A completed weight and balance recalculation worksheet with an equipment list change log and CG verification

Week 7

Inspection Authorization Privileges, Limitations, and Administrative Responsibilities & Regulations (14 CFR parts 1, 21, 39, 43, 45, 65, 91, 121, 135) and Airworthiness Directives & Maintenance Records, Approvals for Return to Service, and Recordkeeping Requirements

  • Outline IA privileges and limits under Part 65, including what an IA may and may not approve

  • List the administrative duties: inspection records, expiration and renewal, and reporting obligations

  • Identify situations that require an IA to decline approval and document the basis for refusal

  • Re-drill error-prone regulatory and records items from weeks 1 through 4

Your checkpoint

A one-page IA privileges and limitations reference plus a scored 40-question mixed-domain set at 80 percent or better

Week 8

Regulations (14 CFR parts 1, 21, 39, 43, 45, 65, 91, 121, 135) and Airworthiness Directives & Maintenance Records, Approvals for Return to Service, and Recordkeeping Requirements & Annual and Progressive Inspections, Including Part 43 Appendix D Scope and Detail & Major Repairs, Major Alterations, Field Approvals, and Form 337 Documentation & Type Certificate Data Sheets, Specifications, Airworthiness Limitations, and Instructions for Continued Airworthiness & Aircraft Structures and Systems Inspection (airframe, engines, propellers, appliances) & Weight and Balance and Equipment Lists & Inspection Authorization Privileges, Limitations, and Administrative Responsibilities

  • Complete two timed 60-question simulated exams across all domains

  • Re-drill every missed item until each is answered correctly with a cited justification

  • Recite from memory the return-to-service signature rules and record retention periods

  • Review the highest-weight domains one final time using condensed notes

Your checkpoint

Two timed practice exams scored at 85 percent or better with a written remediation log for every missed item

Milestones

Week 2: Score 80 percent or better on a 25-question set covering regulations and ADs, and correctly state the retention period for all 10 record types in the audit checklist

Week 4: Score 80 percent or better on a 30-question set covering records, annual and progressive inspections, and major repairs/alterations; produce a Form 337 with no missing fields

Week 6: Score 80 percent or better on a 25-question set covering TCDS, ICA, structures and systems, and weight and balance; complete the W&B recalculation with a correct CG

Week 8: Score 85 percent or better on both timed 60-question simulated exams, with a remediation log showing every missed item re-answered correctly