48-21-01: Accelerator Pump Linkage
FAA order 48-21-01 is an airworthiness directive. The FAA's subject line: Accelerator Pump Linkage. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- Wytwornia Sprzetu Komunikacyjnego
- Models
- 6A4-150-B3, 6A4-150-B31
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (467 characters)
48-21-01 BELLANCA: Applies to All Aircraft Equipped With Franklin Model 6A4-150- B3 and B31 Engines.
Compliance required after each 25 hours of operation.
To prevent possible binding of accelerator pump linkage in Marvel-Schebler MA-3-SPA carburetor, check for worn accelerator pump linkage. Worn parts should be replaced. Marvel- Schebler have a kit (Part A666-581) available for this purpose.
(Franklin Service Bulletin No. 61 covers this same subject.)
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/48-21-01.json · aircraft systems.