AC 90-89C

Advisory circular · Amateur-Built Aircraft and Ultralight Flight Testing Handbook

Approved
February 14, 2023
Last reviewed
July 19, 2024
Cancels
AC90-89B
Family
AC 90-89 · 3 versions
Revision
C
14 CFR parts
1, 21, 23, 91, 103

Guidance, not mandatory unless a rule or AD requires it. DRS record last changed March 30, 2026.

Show pages 117–128
Page 129Open in PDF

Appendix C C-4

• AC 90-109, Transition to Unfamiliar Aircraft.

• AC 90-116, Additional Pilot Program for Phase I Flight Test.

• AC 91-61, A Hazard in Aerobatics: Effects of G-Forces on Pilots.

• AC 103-6, Ultralight Vehicle Operations – Airports, Air Traffic Control, and Weather.

• AC 103-7, The Ultralight Vehicle.

C.3.2 FAA Handbooks. Current editions are available at https://www.faa.gov/regulations_policies/handbooks_manuals.

• Aeronautical Information Manual (AIM): Official Guide to Basic Flight Information and ATC Procedures.

• FAA-H-8083-3, Airplane Flying Handbook.

• FAA-H-8083-25, Pilot’s Handbook of Aeronautical Knowledge.

• FAA-H-8083-1, Aircraft Weight and Balance Handbook.

C.3.3 The FAA’s Civil Aerospace Medical Institute (CAMI) Aerospace Medical Education Division’s brochure titled “Carbon Monoxide: A Deadly Menace” is available at https://www.faa.gov/pilots/safety/pilotsafetybrochures/media/cobroforweb.pdf.

Page 130Open in PDF

Advisory Circular Feedback Form If you find an error in this AC, have recommendations for improving it, or have suggestions for new items/subjects to be added, you may let us know by contacting the Flight Standards Directives Management Officer at 9-AWA-AFB-120-Directives@faa.gov.

Subject: AC 90-89C, Amateur-Built Aircraft and Ultralight Flight Testing Handbook Date: _____________________ Please check all appropriate line items:

An err or ( proc edural or typographical) has been noted in paragraph ____________ on page _______.

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______________________________________________________________________ ______________________________________________________________________ In a future change to this AC, please cover the following subject:

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