The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · reissued

SA2741SW

Installation of foldup gondola. Held by Aerco, which holds 3 approved modifications in all. Last revised August 19, 1988. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.; Cameron Balloons Ltd.
Models
AX5-42 (S.1), AX5-42 BOLT, AX6-56 (S.1), AX6-56 BOLT, AX6-56A, AX7-77 (S.1), AX7-77 BOLT, AX7-77A
Type certificates
B2EU, B2EU, B2EU, B2EU, B2EU, B2EU, B2EU, B2EU
On this site
Thunder Balloons Limited AX7 10 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 21, 2026.