AD 85-22-11 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Glasflugel | H 301 Libelle | Airworthiness Directives; GLASFLUGEL Model "Standard Libelle", "Standard Libelle-201B", H301 and H301B "Libelle" Gliders |
| aircraft | Glasflugel | H 301B Libelle | Airworthiness Directives; GLASFLUGEL Model "Standard Libelle", "Standard Libelle-201B", H301 and H301B "Libelle" Gliders |
| aircraft | Glasflugel | Standard Libelle | Airworthiness Directives; GLASFLUGEL Model "Standard Libelle", "Standard Libelle-201B", H301 and H301B "Libelle" Gliders |
| aircraft | Glasflugel | Standard Libelle-201B | Airworthiness Directives; GLASFLUGEL Model "Standard Libelle", "Standard Libelle-201B", H301 and H301B "Libelle" Gliders |
Unsafe Condition
Fatigue failure of the elevator linkage in the area of the welded seam at the base of the control stick which could result in loss of elevator control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within the next 10 hours time in service after the effective date, and thereafter every 10 hours time in service, visually inspect the elevator linkage (P/N 301-41-3/2) with a 5x magnifying glass for cracks. If cracks are found, replace the linkage before further flight. Additionally, within 50 hours time in service after the effective date but no later than July 1, 1986, replace the linkage with P/N 301-41-4/2 following specified technical notes.
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, and thereafter at intervals not to exceed 10 hours time in service after the last inspection. Additionally, within the next 50 hours time in service after the effective date but no later than July 1, 1986.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Glasflugel Models Standard Libelle (serial 1-476), Standard Libelle-201B (serial 1-476), H301 Libelle (all serial numbers), and H301B Libelle (all serial numbers).
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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