SA1251NW
Installation of Cleveland wheels and brakes, Goodyear tires/tubes, Univair front lift struts, top fuselage plexiglass window, L.H. fuselage tube frame window, and L.H. wing auxiliary (transfer) fuel tank. Held by Stark, Robert C., which holds 2 approved modifications in all. Last revised June 3, 1981. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.
- Models
- J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2))
- Type certificate
- A-691
- On this site
- Piper J-3 Cub 3,805 registered
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 21, 2026.