AD 90-02-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Burkhart Grob Luft-Und | G103 Twin Astir | Airworthiness Directives; GROB WERKE GmbH & COMPANY KG (BURKHART GROB) Models TWIN ASTIR and TWIN ASTIR TRAINER, G103 TWIN II and G103A TWIN II ACRO Gliders |
| aircraft | Burkhart Grob Luft-Und | G103 Twin II | Airworthiness Directives; GROB WERKE GmbH & COMPANY KG (BURKHART GROB) Models TWIN ASTIR and TWIN ASTIR TRAINER, G103 TWIN II and G103A TWIN II ACRO Gliders |
| aircraft | Burkhart Grob Luft-Und | G103A Twin II Acro | Airworthiness Directives; GROB WERKE GmbH & COMPANY KG (BURKHART GROB) Models TWIN ASTIR and TWIN ASTIR TRAINER, G103 TWIN II and G103A TWIN II ACRO Gliders |
Unsafe Condition
Failure of the wing spar spigots.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 500 takeoffs after the effective date, inspect the wing spar spigots using GROB WERKE Technical Information TM 315-36. If damage is found, remove and replace the spigot with a Fail-Safe Spigot before further flight. If no damage, replace spigots with Fail-Safe Spigots within 500 takeoffs.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 500 takeoffs after the effective date of this AD
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Affected Aircraft
Models TWIN ASTIR (S/N 3000-3291), TWIN ASTIR TRAINER, G103 TWIN II (S/N 3501-3878 and 33879-34078), and G103A TWIN II ACRO (S/N 3544-34078) gliders.
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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