SE53WE
Modify Kinner R-55 and R-56 to incorporate Component Air, Inc., rocker arm axle kit, CAI-46009 to provide external rocker arm lubrication fittings. Held by Component Air, INC. Last revised July 3, 1972. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Gladden Products Corp.; Gladden Products Corp.
- Models
- R-55, R-56
- Type certificates
- 153, 153
- 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.