SA633NW
Installation of the following: PA-14 flaps, PA-18 horizontal stabilizer, elevator and trim system, hinged RH door at the top and hinged LH door window at top, fish pole container tube of 0.032" aluminum in baggage comparment. Held by Cecil M Dufault. Last revised July 11, 1978. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- FS 2003 Corp.
- Models
- PA-12
- Type certificate
- A-780
- On this site
- Piper PA-12 Super Cruiser 1,247 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 20, 2026.