SL575SO
Installation of ABP-181 automatic balloon pilot (automatic temperature control). Held by Cline J Donald. Last revised November 5, 1974. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aerostar International; Aerostar International; Aerostar International; Conn Sidney; Conn Sidney; Galaxy Balloons Inc.
- Models
- S-40A, S-50A, S-60A, Firefly 6, Firefly 7, AX-6
- Type certificates
- A15CE, A15CE, A15CE, A14SO, A14SO, A18WE
- On this site
- Aerostar International Inc S-60 81 registered
Balloon Works FIREFLY 6 18 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 7, 2026.