AD 89-08-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Burkhart Grob Luft-Und | G103 Twin II | Airworthiness Directives; GROB WERKE GMBH & COMPANY KG (BURKHART GROB) Models G103 TWIN II and G103 A TWIN II ACRO Gliders |
| aircraft | Burkhart Grob Luft-Und | G103A Twin II Acro | Airworthiness Directives; GROB WERKE GMBH & COMPANY KG (BURKHART GROB) Models G103 TWIN II and G103 A TWIN II ACRO Gliders |
Unsafe Condition
Failure of the flight control systems due to weld cracks in the control systems.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 10 hours time-in-service after the AD's effective date, inspect control systems for weld cracks per Grob S/B TM315-37. If cracks found, repair them and modify the glider before further flight. If no cracks, modify the glider within 100 hours time-in-service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 10 hours time-in-service after the effective date of this AD (for inspection); within 100 hours time-in-service after the effective date if no cracks found.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
GROB WERKE GMBH & COMPANY KG Models G103 TWIN II and G103 A TWIN II ACRO gliders with serial numbers 3501 through 3878, and 33879 through 34078.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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