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Atlas / eCFR / AC 33-12

FAA · Advisory Circular

Geometry and Dimensional Considerations for Comparative Test and Analysis for Turbine Engine and Auxiliary Power Unit (APU) Replacement, and Repaired Parts

AC 33-12 Current Issued 2025-09-08 OPR AIR-625 FAA PDF ↗

14 CFR Parts this AC applies to

Derived from the AC's subject series via the FAA's published numbering scheme.

Document overview

Structured fields from the FAA Dynamic Regulatory System (DRS). Full body text lives in the linked PDF.

Subject
Geometry and Dimensional Considerations for Comparative Test and Analysis for Turbine Engine and Auxiliary Power Unit (APU) Replacement, and Repaired Parts
Status
Current
Office
AIR-62A
Referenced 14 CFR Parts
Part 21, Part 33, Part 43
Referenced sections
Sec. 21.303, Sec. 43.13, Sec. 43.15

Read AC 33-12 on faa.gov ↗