47-21-18: Mixture Control Support Bracket
FAA order 47-21-18 is an airworthiness directive. The FAA's subject line: Mixture Control Support Bracket. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Sky Enterprises, Inc.
- Models
- RC-3
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 (708 characters)
47-21-18 REPUBLIC: (Was Mandatory Note 8 of AD-769-2.) Applies to Model RC-3 Aircraft Serial Numbers 5 Through 303, 305 Through 367, 369 Through 398, 400 Through 445, 448 and 449, 451 Through 454, 456 Through 459, 461 Through 466, 469 and 470, 472, 474, 479 and 482.
Compliance required prior to next flight.
Prior to each flight until reinforced support bracket is installed, inspect mixture control support at carburetor air filter housing for evidence of cracking. Support bracket must be installed not later than the next 25 hours of operation after July 1, 1947, and in no case later than August 1, 1947.
(Republic Seabee Service Bulletin No. 11 dated March 10, 1947, 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/47-21-18.json · aircraft systems.