SA7971SW
Installation of freon air conditioning using Enviro Systems, Inc. components. Held by Aar Airframe and Accessories Group INC, which holds 8 approved modifications in all. Last revised December 13, 2000. System: heating, ice protection and utility systems.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Saab Aircraft AB; Saab Aircraft AB
- Models
- 340A (SAAB-SF340A), SAAB 340B
- Type certificates
- A52EU, A52EU
- On this site
- Saab Aircraft Ab SAAB 340 5 registered
Saab-Fairchild 340 8 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.