SA7772SW
Replacement of existing torquemeters. Held by Avmar A Michigan Corporation. Last revised July 30, 2004. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Lockheed Aircraft Corporation; Lockheed Aircraft Corporation; Kelowna Flightcraft R & D Ltd.; Kelowna Flightcraft R & D Ltd.
- Models
- 188A, 188C, 340, 440
- Type certificates
- 4A22, 4A22, 6A6, 6A6
- 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 21, 2026.