SA525CE
Concurrently incorporate the following items of Aircraft Specifications No. A-691, 625-clipped wing installation except operating limitations are not changed, 617-wing tip spill plates (optional), 311(c)(9) - Continental C85-8 or -12 engine C85-8 or -12 engine. Held by Socotair LLC. Last revised June 2, 2000. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.
- Models
- J3C-65
- Type certificate
- A-691
- On this site
- Piper J-3 Cub 3,804 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.