SA02620SE
Installation of Butterfield Industries Air/Oil Separator System, kit Part Number BI 8055-1. Held by Raisbeck Engineering INC., which holds 45 approved modifications in all. Last revised September 1, 2023. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
- Models
- C90A, C90GT, C90GTi
- Type certificates
- 3A20, 3A20, 3A20
- On this site
- Beechcraft C90 King Air C90 607 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 7, 2026.