SE01949AT
Engine modification to convert Lycoming model O-540-D4A5 and install engine turbonormalization systme which includes 2 ea. Rotomaster model 30T5FF10J2 turbochargers (part number 600572-00) and 1 ea. Harrison Intercooler (part number KA-128). Held by K-Aero. Last revised July 12, 1999. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Textron Lycoming AVCO Corporation
- Models
- O-540-E4A5
- Type certificate
- E-295
- 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.