FAR 21.607 — TSO Quality System
FAR 21.607 requires every TSO authorization applicant or holder to establish a quality system meeting the requirements of FAR 21.137.
FAR 21.607 sets a baseline production standard for anyone seeking or holding a Technical Standard Order (TSO) authorization. A TSO authorization lets a manufacturer produce a specific article (like an altimeter, life vest, or seatbelt) that meets an FAA performance standard.
The rule is short but important: every applicant for or holder of a TSO authorization must establish a quality system that meets the requirements of FAR 21.137.
In practical terms, this means the manufacturer can't just meet the TSO performance specs once — they must have an organized, documented quality system in place to ensure every article they produce continues to conform to the approved design.
Why it matters operationally:
- Pilots rely on TSO'd articles (instruments, safety equipment, avionics) to perform as advertised.
- The quality system is the FAA's assurance that production units match the tested, approved article.
- Without a compliant quality system, a TSO authorization cannot be issued or maintained.
Five FAA-written-style questions. Instant explanations, every answer cites its source — no account needed.
You are flying VFR in Class E airspace at 8,500 feet MSL during the day. What are your minimum visibility and cloud clearance requirements?