SA283AL
Installation of Hartzell HC 82XL-1, -2, or -6 propeller hub with 7636D-4 blades or HC-C2YL-1B hub with 76634 blades and appropriate Woodward governor. Held by Bachner'S Aircraft Service, which holds 2 approved modifications in all. Last revised July 22, 1969. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- American Champion Aircraft Corp.; American Champion Aircraft Corp.; American Champion Aircraft Corp.
- Models
- 7GCA, 7GCBC, 7GCB
- Type certificates
- A-759, A-759, A-759
- On this site
- American Champion Aircraft 7 Citabria and Champ 429 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.