SA1747WE
Installation of AiResearch TPE 331 engines, increase in fuselage length and related changes. Held by Texas Airplane Mfg CO, INC, which holds 5 approved modifications in all. Last revised September 5, 1974. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The de Havilland Aircraft Co. Ltd.; The de Havilland Aircraft Co. Ltd.; The de Havilland Aircraft Co. Ltd.; The de Havilland Aircraft Co. Ltd.
- Models
- D.H. 104 Dove Series 7A, D.H. 104 Dove Series 7AXC, D.H. 104 Dove Series 8A, D.H. 104 Dove Series 8AXC
- Type certificates
- A-807, A-807, A-807, A-807
- 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.