SE873SW
Modification of Pratt and Whitney R2800-B Series cylinder heads to the R2000-2SD-13G configuration. Held by Continental Motors, INC., which holds 57 approved modifications in all. Last revised October 31, 2016. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division; Pratt & Whitney Division
- Models
- Military R-2000 Series, Twin Wasp 2SD-G, Twin Wasp 2SD1-G, Twin Wasp 2SD13-G, Twin Wasp D-14, Twin Wasp D-3, Twin Wasp D-4, Twin Wasp D-7
- Type certificates
- TC 5E-5, E-230, E-230, E-230, E-230, E-230, E-230, E-230
- 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 20, 2026.