SA4003SW
Addition of servo-tabs to upper ailerons according to Drawing FA 7039, Sheets 1 and 2, dated 5/15/79, or later FAA approved revision. Held by Turbine Conversions LTD, which holds 33 approved modifications in all. Last revised May 10, 2011. System: flight controls.
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 21, 2026.