SA661EA
Installation of Radome Kit No. 3084K for Bendix RDR-100 or RDR-110 series radar systems 12-inch antenna. Held by Norton Company, which holds 39 approved modifications in all. Last revised March 11, 1970. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company
- Models
- 421 Series
- Type certificate
- A7CE
- On this site
- Cessna 421 Golden Eagle 769 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 19, 2026.