Document Title: AC 20-146A Methodology for Dynamic Seat Certification by Analysis for Use in Parts 23, 25, 27, and 29 Airplanes and Rotorcraft
Summary: This advisory circular (AC) sets forth an acceptable means, but not the only means, for demonstrating compliance with Title 14, Code of Federal Regulations (14 CFR) 23.562, 25.562, 27.562, and 29.562, as well as Technical Standard Order (TSO) TSO-C127a, and TSO-C127b. This AC includes guidance for certifying seats by computer modeling analysis techniques that are validated by dynamic tests. This AC defines the acceptable applications, limitations, validation processes, and minimum documentation requirements involved when substantiation by computer modeling is used to support a seat certification program.
Documents for Download: Draft Document
Draft Document Comment Grid
Reference: 14 CFR Parts 23.562, 25.562, 27.562, and 29.562
Comments Due: September 1, 2016
How to Comment: Email comments to:

Deliver comments by mail or hand to:
Federal Aviation Administration
Transport Airplane Directorate
Transport Standards Staff
Standardization Branch, ANM-113
1601 Lind Avenue SW
Renton, WA 98057-3356

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