HomeAD libraryAD 75-23-09Airworthiness Directive · Amendment 39-2420 · The Boeing Company AirplanesAD 75-23-09The Boeing Company AirplanesAirplaneIssued1975EffectiveNot statedMakerThe Boeing CompanySupersedesNothingApplies toThis AD applies to The Boeing Company 747-200C Series, 747-200F Series.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 75-23-09 for its current status and any corrections