SA41AL
Six inch wheels and brakes. Held by Mathias Wesley W. Last revised March 7, 1963. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.; The New Piper Aircraft Inc.; The New Piper Aircraft Inc.
- Models
- PA-18, PA-20, PA-14
- Type certificates
- 1A2, 1A4, A-797
- On this site
- Piper/Cub Crafters PA-18 46 registered
Piper PA-14 100 registered
Piper PA-20 Pacer 323 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 22, 2026.