46-37-01: Fuel Strainer Gasket
FAA order 46-37-01 is an airworthiness directive published June 17, 1950. The FAA's subject line: Fuel Strainer Gasket. It names Piper J-3 Cub, Piper PA-12 Super Cruiser: about 5,051 aircraft on the U.S. register today across them, though an order usually covers particular versions or serial numbers rather than every one. System: other and general.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- Piper Aircraft Inc.
- Models
- PA-12, PA-12S, J3C-65S, J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2))
- On this site
- Piper J-3 Cub 3,804 registered
Piper PA-12 Super Cruiser 1,247 registered
Dates and paperwork
- Published
- June 17, 1950
- 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 (633 characters)
46-37-01 PIPER: (Was Mandatory Note 12 of AD-691-02 and Mandatory Note 1 of AD- 780-3.) Applies to J3C-65 and J3C-65S, Serial Numbers 14027 and Up and All PA-12.
Compliance required by November 1, 1946.
To prevent possible failure of the fuel strainer bowl, replace the present thin fuel strainer bowl gasket with a 1/8-inch thick cork and neoprene gasket supplied by Piper. The bowl seat nut should be tightened only finger tight. The bowl should be carefully examined for signs of flaws or cracks and should be replaced if any are found.
(Piper Service Bulletin No. 89 dated July 11, 1946, covers this same subject.)
Related safety bulletins advice on the same designs, not orders
2018-11-21SW-18-31 · NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM
1998-10-21ACE-99-01 ·
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/46-37-01.json · aircraft systems.