AD 77-23-10
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | K & L Soaring LLC | SGS 2-33 | Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders |
| aircraft | K & L Soaring LLC | SGS 2-33A | Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders |
| aircraft | K & L Soaring LLC | SGS 2-33AK | Airworthiness Directives; Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders |
Unsafe Condition
Cracked vertical stabilizer spar-to-fuselage attachment bolts and spar web or elongated holes in the vertical stabilizer spar-to-fuselage attachment structure.
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Required Actions
Within 25 hours in service after the effective date, inspect the vertical stabilizer spar-to-fuselage attachment bolts and spar web per Schweizer Service Bulletin No. 102-33-2 or equivalent. Repeat inspections every 100 hours in service or six months, whichever comes first. Repair or replace defective parts before further flight.
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Compliance Time
Within the next 25 hours in service after the effective date, unless previously accomplished within the last 75 hours in service
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Affected Aircraft
Schweizer Models SGS 2-33, SGS 2-33A, and 2-33AK Gliders
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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