SA7973SW
Installation of a freon air conditioning system powered by an inverter to drive a hermatically sealed 117VAC compressor. Held by Collins Aircraft Dynamics INC, which holds 8 approved modifications in all. Last revised April 22, 1992. System: electric propulsion.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.; Allied Ag Cat Productions Inc.
- Models
- G-164A, G-164B, G-164C, G-164D
- Type certificates
- 1A16, 1A16, 1A16, 1A16
- On this site
- Ag-Cat Corporation G-164 5 registered
Schweizer Aircraft Corp G-164 64 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 8, 2026.