HomeAD libraryAD 91-07-18Airworthiness Directive · Amendment 39-8089 · HB Aircraft Industries AG GlidersAD 91-07-18HB Aircraft Industries AG GlidersGliderPublishedJanuary 3, 1992EffectiveJanuary 3, 1992MakerHB Aircraft Industries AGSupersedesNothingApplies toThis AD applies to HB Aircraft Industries AG HB-23 2400.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 91-07-18 for its current status and any corrections