SA570AL
Installation of square horizontal stabilizer, elevator and rudder. (PA-12 SERIES Normal Category ONLY). Held by Ronald e Sullivan, which holds 15 approved modifications in all. Last revised January 16, 1976. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.
- Models
- PA-12 Series
- 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 8, 2026.