HomeAD libraryAD 59-20-01Airworthiness Directive · Boeing Defense & Space Group HelicoptersAD 59-20-01Boeing Defense & Space Group HelicoptersRotorcraftIssued1959EffectiveNot statedMakerBoeing Defense & Space GroupSupersedesNothingApplies toThis AD applies to Boeing Defense & Space Group 44A, 44B.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 59-20-01 for its current status and any corrections
