SA1954SO
Installation of Appalachian Access. stainless steel brake discs, P/N 64-17. Held by Aviation Products, INC, which holds 64 approved modifications in all. Last revised September 29, 1995. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Sky International Inc.; Sky International Inc.
- Models
- S-1 Series, S-2 Series
- Type certificates
- A8SO, A8SO
- 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.