Study the FAA Repairman Certificate by organizing Subpart E around each certificate's sponsor. The employer-recommended repairman (§65.103), the experimental aircraft builder repairman (§65.104), and the light-sport repairman (§§65.107, 65.109) each have distinct eligibility sources, privilege sets, and limitations. Map sponsor to privilege first, then rehearse with mixed scenarios and a documentation exercise.
One Certificate Name, Three Different Sponsors in Subpart E
14 CFR Part 65 Subpart E covers three distinct certificates: the employer-recommended repairman (§65.103), the experimental aircraft builder repairman (§65.104), and the light-sport repairman with inspection or maintenance ratings (§§65.107, 65.109). Each has a different sponsor, so each has different privileges.
The sponsor is the source that makes you eligible: an employer's recommendation for the §65.103 repairman, your status as the builder of a specific experimental aircraft for §65.104, and completion of accepted training courses for the light-sport repairman under §65.107. Because the sponsor differs, the scope of work each certificate allows differs, and the limitations attached in §§65.103, 65.104, and 65.109 differ with it.
Build a three-column sponsor map early: sponsor, core privilege, key limitation. Then, for every practice question, ask 'who authorized this person's certificate and for what?' before evaluating the proposed action. Keep Subpart D mechanics (§§65.71–65.95) as a separate mental file — mechanic certificates carry airframe and powerplant ratings, general privileges under §65.81, and recent-experience rules that repairman sections simply do not replicate. Mixing those frameworks produces wrong answers on otherwise straightforward scope questions.
Use this table as the skeleton of your map, then expand each row with details from the cited sections as you study:
- Repairman (general) — §65.103: sponsored by an employer's recommendation; privileges tied to assigned duties for that employer.
- Repairman — experimental aircraft builder — §65.104: sponsored by building the aircraft; privileges attach to that specific aircraft.
- Repairman (light-sport), inspection rating — §§65.107/65.109: sponsored by an accepted course; privileges centered on condition inspections on an eligible aircraft the holder owns.
- Repairman (light-sport), maintenance rating — §§65.107/65.109: sponsored by a longer accepted course; privileges extend to maintenance tasks within the section's limitations and the rating's class.
| Certificate type | Regulation | Eligibility sponsor | Core privilege focus | Boundary to watch | Duration behavior |
|---|---|---|---|---|---|
| Repairman (general) | §65.103 | Employer recommendation | Specific work assigned by the sponsoring employer | Scope defined by the employment relationship | Tied to employment with that employer |
| Experimental aircraft builder | §65.104 | Building the aircraft | Condition inspection privilege for that aircraft | Aircraft-specific; does not extend to similar aircraft | Attached to the aircraft the builder built |
| Light-sport, inspection rating | §§65.107/65.109 | Accepted training course | Condition inspections on an eligible light-sport aircraft the holder owns | Rating class; not a maintenance authorization | Follows Subpart A duration rules |
| Light-sport, maintenance rating | §§65.107/65.109 | Longer accepted training course | Maintenance tasks plus condition inspections within limits | Rating class and §65.109 limitations | Follows Subpart A duration rules |
The §65.103 Employer-Recommended Repairman: Privileges Tied to the Job
Under §65.103, eligibility runs through an employer's recommendation and privileges are tied to work the employer assigns. The certificate does not function as a personal, portable maintenance authority once the employment relationship ends.
Scenario: R. holds a repairman certificate recommended by an approved repair station for structural repair tasks on that station's product lines. A friend asks R. to perform and sign off the condition inspection on an amateur-built aircraft R. helped rivet years earlier. The tempting mistake is to treat the certificate as a personal license that travels with R. The better decision is to decline: that work would require authorization under the experimental builder provisions of §65.104 with a certificate issued for that specific aircraft, which R. does not hold for the friend's airplane. This matters because signing the record would document an approval R. has no authority to give, attaching R.'s name to work performed outside certificate scope.
For the application side, the FAA's Airmen Certification pages list Form 8610-3 as the repairman application; know that the eligibility chain starts with the employer's recommendation rather than a personal test result. For duration, apply the sponsor logic: since the certificate's usefulness follows the employment relationship, plan on requalifying under a new employer's recommendation rather than assuming the prior certificate remains usable. When studying, convert every §65.103 privilege statement into the form 'for the sponsoring employer, on the work the employer assigns' — that phrasing keeps limitation questions from drifting toward mechanic-style general privileges that this section does not grant.
§65.104 Experimental Aircraft Builder: A Certificate Attached to One Aircraft
The §65.104 repairman certificate recognizes the builder of a specific experimental aircraft and centers on the condition inspection privilege for that aircraft. Its boundaries are aircraft-specific, which is the detail most practice scenarios probe.
Eligibility rests on having built the aircraft, and the resulting privileges attach to that aircraft rather than to a general rating class. That is the structural difference from every other certificate in the subpart: a mechanic with an airframe rating can work across many aircraft, while the experimental builder repairman's inspection authority follows the one aircraft named in the qualification. Study the section's privilege and limitation language together, because the value of the certificate — performing the condition inspection on your own build — exists only within those stated boundaries.
Two distinctions to rehearse. First, aircraft-specific versus design-specific: helping on, or even building, another aircraft of an identical design does not carry the privilege over; the certificate follows the builder's relationship to that particular aircraft. Second, builder versus mechanic: the builder's authority is narrower than a certificated mechanic's, so scenarios where a builder is asked to approve work beyond the section's stated privilege should be flagged as outside scope. When you read vignettes, underline the aircraft's registration and the person's role in building it — if the scenario shifts to a different aircraft or a helper rather than the builder, the correct answer usually changes with it.
Light-Sport Repairman: Inspection Rating Versus Maintenance Rating
§§65.107 and 65.109 split light-sport repairman privileges by rating: the inspection rating centers on condition inspections for an eligible light-sport aircraft the holder owns, while the maintenance rating extends to maintenance tasks within the section's limitations.
Scenario: S. completes the light-sport repairman inspection course for the airplane class and is later asked to replace a landing-gear component on a friend's experimental light-sport airplane, arguing the certificate 'covers light-sport work.' The mistake is treating the inspection rating as a maintenance rating. The better decision: S.'s inspection rating supports the condition inspection on an eligible light-sport aircraft S. owns; performing maintenance on another owner's aircraft calls for the maintenance rating — with its additional course and §65.109 limitations — or another appropriately authorized person. This matters because the record entry would otherwise imply an authority the inspection rating does not carry, and the maintenance rating's course content exists precisely to cover that wider scope.
Two axes define every light-sport repairman question: rating type and class. The rating type (inspection versus maintenance) sets what kind of work is possible; the class rating sets which category of aircraft it applies to. Keep the aircraft-airworthiness distinction in view as well: light-sport repairman privileges under §65.109 are bounded by the section's limitations, and manufacturer maintenance instructions govern how work is performed on these aircraft. In practice questions, check both axes before judging any proposed task — a correct rating type with the wrong class, or the right class with the wrong rating type, is still outside scope.
Reading Privilege and Limitation Clauses in §§65.101–65.109
Each repairman section pairs privileges with limitations in the same text: §§65.103, 65.104, and 65.109 each carry both, §65.101 holds general eligibility, and §65.105 requires display of the certificate. Parse every section as a privilege set plus a boundary set.
Mark the verbs. 'May' clauses describe what the certificate holder can do; 'limited to' and prohibition phrasing describe the boundary. Train yourself to read a Subpart E section in one pass collecting both lists before answering anything. Also place the supporting sections correctly: §65.101 contains the general eligibility requirements that apply across repairman certificates, and §65.105 carries the display requirement — a detail easy to overlook because mechanics have their own display rule at §65.89, which is a different section in a different subpart.
Guard against importing Subpart D rules. Mechanic certificates involve ratings (§65.73), general privileges and limitations (§65.81), and recent-experience requirements (§65.83); the repairman subpart is short and does not mirror that structure. Conversely, remember that Subpart A general rules — such as duration of certificates (§65.15) and change of address (§65.21) — do apply across certificate types, so a question about keeping your certificate current may route through Subpart A even though the privilege question routes through Subpart E. A reliable drill: for each practice item, name the subpart and section your reasoning depends on; if you cannot, you are pattern-matching rather than applying the rule.
- §65.101 — general eligibility requirements for repairman certificates.
- §65.103 — employer-sponsored repairman: privileges and limitations in one place.
- §65.104 — experimental aircraft builder: privileges tied to the specific aircraft.
- §§65.107/65.109 — light-sport repairman: training-course eligibility, then rating-specific privileges and limitations.
- §65.105 — display of the repairman certificate; §65.105 is not the mechanic display rule.
Documenting Work When Your Authority Is Narrow
Because repairman privileges are bounded, a defensible maintenance entry must show what was done, on which aircraft, by whom, and under which certificate authority — the entry itself should demonstrate the work stayed within scope.
For each certificate type, the entry emphasizes a different element. The employer-recommended repairman's entry should make the assigned-work context clear; the experimental builder's condition inspection entry must identify the aircraft precisely, because the certificate attaches to that one aircraft; the light-sport repairman's entry should reflect the rating and class that authorize the task. A reader comparing the record against the certificate should be able to confirm the match without asking you anything — that is the standard a narrow-scope authority has to meet.
Run a two-entry writing drill. Vignette A: an employer-recommended repairman completes an assigned repair at the sponsoring employer. Vignette B: an experimental builder repairman performs the condition inspection on the aircraft covered by the certificate. Write the entry you would make for each, then annotate the section that authorizes the work. Expected observations: the authority citation differs between the two entries, the aircraft identification carries more weight in the builder entry, and both entries need the date, a description of the work, and the signer's identification. If your two drafts look interchangeable, you have collapsed the scope distinctions the exam separates.
A Study Sequence and Readiness Rubric for Subpart E
Sequence Subpart E in four passes: map the structure, then one certificate type per session, then limitations and documentation, then mixed scenarios. Finish with a self-audit rubric scored on reasoning quality, not just answer choice.
An adaptable sequence: Session 1, skim §§65.101–65.109 and draw the sponsor map with the comparison table. Session 2, deep-read §65.103 and write three employer-scoped privilege statements. Session 3, §65.104 with two aircraft-specificity vignettes. Session 4, §§65.107/65.109 with the rating-type versus class grid. Session 5, documentation entries for all three types. Session 6, mixed practice where you label each vignette's certificate type and the trap it contains, then link each trap to a human-factors theme such as assumed authority or incomplete identification. Adjust the pace to your calendar, but keep the order: sponsor before privilege, privilege before documentation.
Cap it with the five-vignette audit. For each vignette: classify the certificate type (1 point), state the correct privilege or limitation (1 point), cite the governing section (1 point), identify the vignette's mistake (1 point), and draft a compliant record entry with date, work description, name, and authority (1 point). Expected observations: on the first pass, most missteps trace to skipping the sponsor question; by the second pass, classification should feel automatic and citations should be section-accurate. Treat rubric scores as learning milestones that show which certificate type still needs a focused session — they indicate study progress, not a predicted result.
Readiness checks before you move to full practice tests:
- You can state the sponsor for each certificate type from memory, without notes.
- You can list two privileges and two limitations for §§65.103, 65.104, and 65.109 respectively.
- You can explain, in one sentence each, how duration differs across the three types.
- You can write a compliant record entry for each certificate type that names its own authority.
- You can explain in two sentences why repairman privileges are narrower than Subpart D mechanic privileges under §65.81.
References and further reading
Use these references to explore the concepts and check the latest information from the relevant organizations.