SA1-90
Installation of McCauley Propeller Systems fixed pitch MET-L-Prop models 1A170/GM7452 and 1A170/GM7454. Held by Mccauley Propeller Systems, which holds 66 approved modifications in all. Last revised August 15, 2006. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The New Piper Aircraft Inc.
- Models
- PA-22 Series
- Type certificate
- 1A6
- On this site
- Piper PA-22 Tri-Pacer and Colt 2,940 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 5, 2026.