SA639AL
Installation of Model EP-110 starter/generator decoupler system on Models 23, 24, 25 airplanes using Bendix Model30B-37 starter generators. Held by Jet Accessories INC, which holds 4 approved modifications in all. Last revised February 7, 1983. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Learjet Inc.; Learjet Inc.; Learjet Inc.
- Models
- 24, 25, 23
- Type certificates
- A10CE, A10CE, A5CE
- On this site
- Learjet 23 6 registered
Learjet 24 16 registered
Learjet 25 23 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 21, 2026.