14 CFR § 145.211 — Quality control system
14 CFR — Aeronautics & Space · FAA
14 CFR 145.211 is the FAA's quality control system requirement for certificated repair stations (Part 145). Every repair station must have an FAA-accepted Quality Control Manual specifying inspection procedures, personnel qualifications, training, scope of authority, and how inspections will meet manufacturer/regulatory standards. The QC manual is reviewed during FAA repair station certification and ongoing surveillance. Updates require FAA notification. The manual is the foundation of all repair station operations — every maintenance action references procedures from it.
Regulation summary
A certificated repair station must establish and maintain a quality control system acceptable to the FAA that ensures the airworthiness of articles on which it or any of its contractors performs maintenance, preventive maintenance, or alterations. The quality control manual must include: inspection procedures and standards (acceptance, in-process, final, calibration), revision procedures, qualification of personnel, training requirements, scope of inspection authority, and methods for ensuring that inspections meet manufacturer/regulatory standards.
Who must comply
All FAA-certificated Part 145 repair stations — approximately 5,000+ certificate holders worldwide. Covers airframe, powerplant, propeller, radio, instrument, accessory, and limited specialized service ratings. Both domestic and foreign repair stations.
What happens if violated
FAA civil penalties typically $2,500-$50,000 for repair station violations; higher for repeated or willful. Repair station certificate suspension or revocation possible. Inability to release articles to service = loss of business. FAA SVE (Surveillance Visit and Evaluation) findings are documented and tracked.
Implementation checklist
- Develop FAA-acceptable Quality Control Manual covering all 14 CFR 145.211 elements.
- Specify inspection procedures: acceptance, in-process, final, calibration.
- Document personnel qualifications and inspection authority scope.
- Establish training requirements for inspection personnel.
- Maintain calibration records for inspection equipment.
- Update QC manual when procedures, scope, or qualifications change.
- Notify FAA per 14 CFR 145.215(d) of significant manual changes.
- Conduct internal audits to verify QC manual compliance.
- Train ALL maintenance personnel on QC procedures.
- Retain QC records per 14 CFR 145.219 (typically 2 years minimum).
Common misinterpretations
- Misinterpretation: 'Our QC manual is set — we don't need to update it.' Reality: 14 CFR 145.211 requires the QC manual to remain current. FAA-acceptable updates are required when procedures, personnel qualifications, equipment, or scope changes. The FAA must be notified per 14 CFR 145.215(d).
- Misinterpretation: 'Final inspection is the only required inspection.' Reality: 145.211 covers acceptance inspection (incoming material), in-process inspection (during work), final inspection (before release to service), and calibration of inspection equipment. All four are typically required.
- Misinterpretation: 'Any A&P can sign off as inspector.' Reality: The QC manual specifies who has inspection authority and the scope of that authority. Not all A&Ps in the repair station have inspection authority — only those qualified and designated per the manual.
- Misinterpretation: 'OEM service manuals are enough.' Reality: The QC manual references manufacturer data but is the REPAIR STATION's documented procedures. The manual must specify how the repair station will execute manufacturer-published procedures, including any deviations approved by the FAA.
Frequently asked questions
What is a Part 145 repair station?
An FAA-certificated organization performing maintenance, preventive maintenance, or alterations on aircraft, aircraft engines, propellers, or appliances per 14 CFR Part 145. Repair stations have specific ratings (airframe, powerplant, propeller, radio, instrument, accessory, etc.) defining the scope of work they can perform.
What goes in the QC manual?
Per 14 CFR 145.211: inspection procedures (acceptance, in-process, final), inspection standards, calibration procedures for inspection equipment, revision procedures for the manual, personnel qualifications, training requirements, inspection authority scope, methods for ensuring inspections meet manufacturer/regulatory standards.
Who can be an inspector at a repair station?
Personnel designated by the repair station per the QC manual. Typical requirements: A&P mechanic certificate, specific training on the inspection type, demonstrated competency, designation by the chief inspector. The QC manual specifies the scope of inspection authority for each designated inspector.
How often must the QC manual be updated?
Whenever procedures, personnel qualifications, equipment, or scope changes. Per 14 CFR 145.215(d), significant changes must be reported to the FAA. Routine clarifications and corrections can be made internally. Annual review for currency is best practice.
Are foreign repair stations covered by 14 CFR 145.211?
Yes — all FAA-certificated repair stations, foreign or domestic, must comply with Part 145. Foreign repair stations also coordinate with their home country aviation authority. EASA-FAA bilateral agreements affect some specifics.
What's the difference between QC and Quality Assurance?
Quality Control (QC) per 14 CFR 145.211 = direct inspection of work product. Quality Assurance (QA) = the broader system of audits, reviews, and management oversight. Many repair stations integrate both in their Quality Management System (QMS). 14 CFR 145.211 specifically addresses QC; broader QA may be addressed in the operations specifications.
Cross-references: 14 CFR 145.207 · 14 CFR 145.209 · 14 CFR 145.213 · 14 CFR 145.215
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