SA3404SO
Installation of Appalachian stainless steel brake disks. Held by Appalachian Accessories, which holds 45 approved modifications in all. Last revised April 30, 1992. System: landing gear.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- PA-38-112, B19, C23, A24R, B24R, C24R, 77
- Type certificates
- A18SO, A1CE, A1CE, A1CE, A1CE, A1CE, A30CE
- On this site
- Piper PA-38 Tomahawk 442 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 12, 2026.