SA04144NY
Restricting the aircraft to six (6) seats (2 at 95, 2 at 132, 2 at 195, *1 at 242) for operation under 14 CFR Part 68 (BasicMed). * - Optional potty seat is exempt from this requirement, providing that it is placarded THIS SEAT NOT TO BE OCCUPIED FOR TAXI, TAKE-OFF OR LANDING. Held by Avpro Technical Services LLC. Last revised September 7, 2018. System: cabin, seats and restraints.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Piper Aircraft Inc.
- Models
- PA-31-350
- Type certificate
- A20SO
- On this site
- Piper PA-31 Navajo and Chieftain 935 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 20, 2026.