FAR 21.605 — TSO Organization Requirements
FAR 21.605 explains the organizational documentation, accountable manager, and quality oversight required for TSO authorization applicants and holders.
FAR 21.605 sets the organizational requirements for any company applying for or holding a Technical Standard Order (TSO) authorization. A TSO authorization lets a manufacturer produce certain articles (like avionics, instruments, or safety equipment) to an FAA-approved minimum performance standard.
The applicant or holder must give the FAA a document that:
- Describes how the organization ensures compliance with Subpart O (TSO authorizations).
- Describes assigned responsibilities, delegated authorities, and how the quality function relates to management and other parts of the organization.
- Identifies an accountable manager.
The accountable manager is the key figure. They:
- Have authority over all production operations under Part 21.
- Must confirm the procedures in the quality manual (required by § 21.608) are in place.
- Must ensure the organization meets the applicable regulations of Subchapter C, Aircraft.
- Serve as the primary FAA contact.
Why it matters: this rule ensures TSO articles installed on aircraft come from a manufacturer with clear accountability and a documented quality system — protecting safety down the line.
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