HomeAD libraryAD 82-20-52Airworthiness Directive · Amendment 39-4480 · Columbia Helicopters, Inc. HelicoptersAD 82-20-52Columbia Helicopters, Inc. HelicoptersRotorcraftPublishedApril 4, 1983EffectiveApril 4, 1983MakerColumbia Helicopters, Inc.SupersedesNothingApplies toThis AD applies to Columbia Helicopters, Inc. 234.The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.Official sourcesThe AD at the FAA · its text as the FAA keeps itFAA Dynamic Regulatory System (DRS) · search 82-20-52 for its current status and any corrections
