SA1-276
Antenna mounts for 18-inch Bendix ANT-1G antenna and 15-inch RCA AVQ-55 or 15-inch RCA AVQ-20 antenna. Held by Norton Company, which holds 39 approved modifications in all. Last revised April 12, 1974. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company; Raytheon Aircraft Company
- Models
- G18S, H18, E18S, E18S-9700
- Type certificates
- A-765, A-765, A-765, A-765
- On this site
- Beechcraft E18 58 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 20, 2026.