SP00066BO
Installation of Hoffman propeller model no. HO4/27BHM-190B108, fixed pitch propeller. Held by Caesar Creek Soaring Club. Last revised November 5, 1996. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.
- Models
- PA-25-235 (Normal Cat.)
- Type certificate
- 2A8
- On this site
- Piper PA-25 Pawnee 455 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.