AD Amdt-39-10478

final rule
Data completeness: 70%

Airworthiness Directives; Alexander Schleicher Segelflugzeugbau Model ASK 21 Sailplanes

AD Number
Amdt-39-10478
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 97-CE-108-AD
FR Citation
63 FR 19385

Unsafe Condition

Inaccurate stall and spin recovery information provided in the sailplane flight manual could result in the inability to recover from a spin or stall during flight.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Remove certain pages from the sailplane flight manual and replace them with new pages containing updated stall and spin recovery information.

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Before further flight

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Alexander Schleicher Segelflugzeugbau Model ASK 21 sailplanes subject to mandatory continuing airworthiness information (MCAI) from Germany.

AI-generated summary from the source AD text. Verify against the official source before acting.

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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View Official Source ↗