SH2673SO
Installation of Fin Tip Plates in accordance with Farrington Aircraft Drawing No. FAC-FIN-1011, Revision A , dated October 13, 1989, and removal of existing Side Slip Warning System. Held by Heliplane Aircraft Corporation International, which holds 7 approved modifications in all. Last revised July 22, 2011. System: airframe structure.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Air & Space America Inc.
- Models
- 18A
- Type certificate
- 1H17
- On this site
- Air & Space America Inc 18 6 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.