SB417CH
Installation of Thunder & Colt basket, Model 4568-5B, S/N 1492-US, the Thunder & Colt double burner, Model C-3 double, S/N J-805, and Thunder & Colt fuel tanks, Model V30, S/Ns V301138, V301284, and V301285. (N-77 S/N 6006). Held by Cameron Balloons US, which holds 182 approved modifications in all. Last revised September 27, 1995. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Cameron Balloons US
- Models
- N-77
- Type certificate
- B3GL
- On this site
- Cameron Balloons Us N-77 14 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 20, 2026.