SA176SW
Aluminum sheet covering of elevator, rudders and ailerons. Held by Sherman V Cornstubble, which holds 2 approved modifications in all. Last revised December 28, 1962. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation
- Models
- 18D, 18S (Army C-45C), A18A, A18D, B18S (Army F-2), C18S, D18C, D18S, E18S, S18A, S18D, SA18A, SA18D
- Type certificates
- A-684, TC 710, A-684, A-684, TC 710, A-757, A-765, A-765, A-765, TC 630, A-684, A-684, A-684
- On this site
- Beechcraft C18 13 registered
Beechcraft D18 55 registered
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 8, 2026.