Airworthiness Directive · Amendment 39-9002 · Burkhart Grob Luft-Und, GROB-WERKE GMBH & CO KG Gliders
Burkhart Grob Luft-Und, GROB-WERKE GMBH & CO KG Gliders
This AD applies to Burkhart Grob Luft-Und, GROB-WERKE GMBH & CO KG G 103 C Twin III SL, G103 Twin Astir, G103 Twin II, G103A Twin II Acro, G103C Twin III Acro, GROB G 109, GROB G 109B, G102 ASTIR CS, G102 CLUB ASTIR III, G102 CLUB ASTIR IIIb, G102 Standard Astir III.
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.
This amendment adopts a new airworthiness directive (AD) that applies to GROB Luft und Raumfahrt (Grob) Models G102, G103, G109, and G109B gliders. This action requires inspecting (one-time) the airbrake stops for cracks in the surrounding gelcoat and to ensure that the outer airbrake swivel levers are in contact with the stops during operation, and repairing any gelcoat cracks or any airbrake stops not in contact with the swivel levers. Excessive wear caused the airbrake fence to jam on the upper shell of the wing on one of the affected gliders, resulting in an accident. The actions specified by this AD are intended to prevent airbrake failure caused by jamming of the airbrake fence, which could result in loss of control of the glider.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
