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SESK: Stuff Everyone Should Know · sesk.info/pilot-saib-not-regulatory

Is compliance with a Special Airworthiness Information Bulletin (SAIB) required by law?

No. An SAIB is advice, not a rule, though the FAA recommends reading it.

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  1. Yes, just like an Airworthiness Directive
  2. No, it is advice the FAA recommends reading ✔
  3. Yes, but only for aircraft used for hire

Why: An SAIB alerts owners and pilots to a safety concern but is not regulatory. The FAA recommends reading it and taking it into account. Airworthiness Directives, by contrast, are mandatory.

Huh, didn't know that: The PHAK's example SAIB, CE-10-21, warned about propeller overspeed in piston airplanes with variable pitch propellers.

The dad joke
An SAIB is like your mom saying 'wear a jacket.' Not a law, but you'll wish you listened.
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References

Answer: No, it is advice the FAA recommends reading. An SAIB alerts owners and pilots to a safety concern but is not regulatory. The FAA recommends reading it and taking it into account. Airworthiness Directives, by contrast, are mandatory.

  1. Pilot's Handbook of Aeronautical Knowledge FAA-H-8083-25C, Chapter 7 www.faa.gov/regulations_policies/handbooks_manuals/aviation/faa-h-8083-25c.pdf
    Although a SAIB is not regulatory in nature, the FAA recommends that the information be read and taken into consideration
    Checked 2026-10-09.

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