Atlas / eCFR / AC 150/5390-2D FAA · Advisory Circular Heliport Design AC 150/5390-2D Current Issued 2023-01-05 OPR AAS-100 FAA PDF ↗ 14 CFR Parts this AC applies to Derived from the AC's subject series via the FAA's published numbering scheme. 14 CFR Part 139 Full text Body text not yet ingested for this AC. The FAA-published PDF is the authoritative source. Read AC 150/5390-2D on faa.gov ↗
