SA01786SE
Fabrication and installation of wing tips. Held by Knots 2U LTD., which holds 28 approved modifications in all. Last revised October 9, 2015. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.; Piper Aircraft Inc.
- Models
- PA-28-140, PA-28-150, PA-28-160, PA-28-180, PA-28R-180, PA-28R-200, PA-28S-160, PA-28S-180, PA-34-200, PA-34-200T, PA-34-220T
- Type certificates
- 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, 2A13, A7SO, A7SO, A7SO
- On this site
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,636 registered
Piper PA-34 Seneca 996 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.