SA1075SW
Conversion of outer wing panel from leading edge to 60% chord and from wing station 96.4 to station 181.8 into an integral fuel tank with associated modifications of substructure and fuel system. Held by Sierra Industries, INC, which holds 164 approved modifications in all. Last revised December 1, 1999. System: fuel system.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Beechcraft Corporation
- Models
- D18S
- Type certificate
- A-765
- On this site
- Beechcraft D18 55 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 22, 2026.