SA04239AT
Installation of Lycoming Engine model O-540-B4B5, serial number L-7638-40C (fuel injected), and optional Hartzell HC-C2YR-1BFP/F8068 constant speed propeller. Held by Nicky L. Watts, which holds 2 approved modifications in all. Last revised January 15, 2016. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.
- Models
- PA-28-235
- Type certificate
- 2A13
- On this site
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 18,637 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.