Glasflügel

Airworthiness Directives; Glasflugel

The FAA is superseding Airworthiness Directive (AD) 2018-21-04 for Glasflugel Models Club Libelle 205, H 301 "Libelle," H 301B "Libelle," Kestrel, Mosquito, Standard "Libelle," and Standard Libelle-201B gliders. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as jamming between the double two-ring end of the towing cable and the deflector angles of the center of gravity (C.G.) release mechanism. The FAA is issuing this AD to address the unsafe condition on these products.

Airworthiness Directives; Glasgflugel Gliders

We are adopting a new airworthiness directive (AD) for Glasflugel Models Club Libelle 205, H 301 "Libelle," H 301B "Libelle," Kestrel, Mosquito, Standard "Libelle," and Standard Libelle-201B gliders. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as jamming between the double two-ring end of the towing cable and the deflector angles of the center of gravity (C.G.) release mechanism. We are issuing this AD to require actions to address the unsafe condition on these products.

Airworthiness Directives; Glasflugel Gliders

We are revising an existing airworthiness directive (AD) for Glasflugel Models Standard Libelle-201B, Club Libelle 205, Mosquito, and Kestrel gliders. That AD currently requires actions to address the unsafe condition on these products. This new AD includes clarification that the replacement control rod has an additional drain hole at the rod bottom between the forks and is the acceptable configuration for compliance. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as corrosion damage to the elevator control rod that could lead to failure of the elevator control rod, possibly resulting in loss of control of the glider. We are issuing this AD to require actions to address the unsafe condition on these products.

Airworthiness Directives; Glasflugel Gliders

We are adopting a new airworthiness directive (AD) for Glasflugel Models Standard Libelle-201B, Club Libelle 205, Mosquito, and Kestrel gliders. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as corrosion damage to the elevator control rod that could lead to failure of the elevator control rod, possibly resulting in loss of control of the glider. We are issuing this AD to require actions to address the unsafe condition on these products.

Airworthiness Directives; Glasflugel Models H 301 “Libelle,” H 301B “Libelle,” Standard “Libelle,” and Standard Libelle-201B Sailplanes

The FAA adopts a new airworthiness directive (AD) for all Glasflugel Models H 301 "Libelle," H 301B "Libelle," Standard "Libelle," and Standard Libelle-201B sailplanes. This AD requires you to replace the rudder actuator arm (manufactured according to drawing No. 301-45-10) with an improved design rudder actuator arm (manufactured following drawing No. 301-45-13). This AD results from mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to detect and correct damage to the rudder actuator arm, which could result in failure of the rudder actuator arm. This failure could result in reduced or loss of rudder control.

Airworthiness Directives; Glasflugel-Ing. E. Hanle Model GLASFLUGEL Kestrel Sailplanes

The FAA adopts a new airworthiness directive (AD) for all Glasflugel--Ing. E. Hanle (Glasflugel) Model GLASFLUGEL Kestrel sailplanes. This AD requires you to inspect the airbrake actuating shaft for deformation and cracks (herein referred to as damage). If any damage is found, this AD also requires you to repair or replace the airbrake actuation shaft. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to detect and correct damage to the airbrake actuation shaft, which could result in failure of the airbrake control. This failure could lead to loss of control of the sailplane.

Airworthiness Directives; HPH s. r. o. Models Glasflügel 304CZ, 304CZ-17, and 304C Sailplanes

The FAA adopts a new airworthiness directive (AD) for certain HPH s. r. o. (HPH) Models Glasfl[uuml]gel 304CZ, 304CZ-17, and 304C sailplanes. This AD requires you to inspect to determine the airbrake handle attachment rivet material. This AD also requires you to replace any non-steel rivet with a steel rivet. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the Czech Republic. We are issuing this AD to prevent the airbrake handle from becoming loose, which could result in failure of the airbrake control. This failure could lead to loss of control of the sailplane.

Airworthiness Directives; Glasflugel Models Mosquito and Club Libelle 205 Sailplanes

The FAA adopts a new airworthiness directive (AD) for all Glasflugel Models Mosquito and Club Libelle 205 sailplanes. This AD requires you to replace the rudder actuator arm with an improved design rudder actuator arm. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. We are issuing this AD to prevent the rudder attachment actuator arm from failing due to ground handling damage. This failure could eventually result in reduced or loss of sailplane control.

Airworthiness Directives; Glasflugel Models Standard Libelle and Standard Libelle 201 B Sailplanes

This amendment adopts a new airworthiness directive (AD) that applies to Glasflugel Models Standard Libelle and Standard Libelle 201 B sailplanes. This action requires inspecting the aileron operating lever's actuating shaft welded seams for cracks; modifying or replacing the actuating shaft, if cracked; and, if no cracks are found, eventually modifying or replacing the shaft. Cracks found in the welded seams of the actuating shaft prompted this action. The actions specified by this AD are intended to prevent cracks in the aileron operating lever's actuating shaft welded seams, which, if not detected and corrected, could cause loss of control of the sailplane.

Airworthiness Directives; Glasflugel Models H301 ``Libelle'', H301B ``Libelle'', Standard ``Libelle'', Standard Libelle 201B, Club Libelle 205, and Kestrel Sailplanes

This amendment adopts a new airworthiness directive (AD) that applies to Glasflugel Models H301 ``Libelle'', H301B ``Libelle'', Standard ``Libelle'', Standard Libelle 201B, Club Libelle 205, and Kestrel sailplanes. This AD requires measuring and adjusting the control surface weight and static moment, and inserting amendments into the Glasflugel Flight and Service Manual. This AD results from reports of considerable variation of the weight and static moment of the control surface on the affected sailplanes found during repair or repainting of the control surface. The actions specified by this AD are intended to prevent sailplane flutter because the weight and static moment of the control surface are not within certain limits, which could result in flutter and subsequent loss of control of the sailplane.

Airworthiness Directives; Glasflugel Model Mosquito Sailplanes

This amendment adopts a new airworthiness directive (AD) that applies to Glasflugel Model Mosquito sailplanes. This action requires modifying the mounting studs on the lifting/tilting frame of the canopy system, repetitively inspecting the mounting stud, and incorporating flight manual revisions that specify a warning on emergency canopy deployment failure. Canopy system problems discovered during routine checks and periodic inspections of these sailplanes prompted the proposed action. The actions specified in this proposed AD are intended to prevent canopy system failure, which could result in loss of control of the sailplane.