SL329GL
Installation of Rego quick acting spring loaded valve, P/N 7553S, in lieu of Rego valve, P/N 2553, using original installation hardware and components. Held by Finn-Bilt, LTD. Last revised July 18, 1979. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Eagle Balloons Corp.
- Models
- Eagle Challenger
- Type certificate
- A13SO
- 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.