AD 85-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Rolladen-Schneider Flugzeugbau GmbH | LS 4 | Airworthiness Directives; ROLLADEN-SCHNEIDER FLUGZEUGBAU GmbH Models LS4 and LS4a Sailplanes |
| aircraft | Rolladen-Schneider Flugzeugbau GmbH | LS 4a | Airworthiness Directives; ROLLADEN-SCHNEIDER FLUGZEUGBAU GmbH Models LS4 and LS4a Sailplanes |
Unsafe Condition
Possible jamming of lower air brake blade due to insufficient overlap between the bottom edge of the lower blade and wing skin lip.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Measure overlap between the lower blade and wing skin lip when air brakes are fully extended. If overlap is less than five millimeters, retract air brakes to achieve at least five millimeters overlap, measure extended height of the air brake, and install stop fitting P/N 4R6-15 with specified rivets. Contact manufacturer if modifications are needed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
prior to further flight, after the effective date of this AD
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Affected Aircraft
ROLLADEN-SCHNEIDER FLUGZEUGBAU GmbH Models LS4 and LS4a sailplanes, serial numbers up to 4340 inclusive
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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