SS05290AT
Replacement of existing Porsche engine and associated drive system with Lycoming Textron IO-540-L1C5 engines mated to shrouded MT Propeller Model MTV-25-2-D-C-R(M)/CFR170-23 propellers. Held by Skyship Services INC., which holds 11 approved modifications in all. Last revised February 17, 2014. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Global Skyship Industries Inc.
- Models
- Skyship 600
- Type certificate
- AS1EU
- 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.