SA1707GL

Installation of Rapco hot pac kit RFS 3096K. Held by Rapco, INC, which holds 11 approved modifications in all. Last revised March 1, 1992. System: other and general.

What it applies to

Kind of product: Aircraft
Design holder: Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.
Models: Learjet 35, Learjet 35A (C-21A), Learjet 31, Learjet 25, Learjet 36A
Type certificates: A10CE, A10CE, A10CE, A10CE, A10CE
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 7, 2026.