AD 48-21-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Wytwornia Sprzetu Komunikacyjnego | 6A4-150-B3 | Airworthiness Directives; Bellanca: Applies to All Aircraft Equipped With Franklin Model 6A4-150- B3 and B31 Engines. |
| engine | Wytwornia Sprzetu Komunikacyjnego | 6A4-150-B31 | Airworthiness Directives; Bellanca: Applies to All Aircraft Equipped With Franklin Model 6A4-150- B3 and B31 Engines. |
Unsafe Condition
Binding of accelerator pump linkage in Marvel-Schebler MA-3-SPA carburetor due to worn parts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Check for worn accelerator pump linkage in the carburetor. Replace worn parts using Marvel-Schebler kit Part A666-581.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
after each 25 hours of operation
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bellanca aircraft equipped with Franklin Model 6A4-150-B3 and B31 engines.
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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