Piper PA-31 Navajo / Chieftain Supplemental Type Certificates (STCs)

12 STCs approved for the Piper PA-31 Navajo / Chieftain (PA-31-310 Navajo) family · FAA quick reference

Quick reference only — not a compliance record. This list is for research convenience and may be incomplete or out of date. It is not an airworthiness compliance determination. Always verify against the official FAA record, and check directly with the FAA before relying on it. ADs are mandatory; STCs indicate approval for the type (not installation on a specific airframe); SAIBs are advisory.

Supplemental Type Certificates (STCs) approved for the Piper PA-31 Navajo / Chieftain type — FAA-approved modifications available for this aircraft family. Approval for the TYPE does not mean a given STC is installed on any individual airframe (that lives in the logbooks/337s).

Document	Title / Subject	Date
SA162EA	Modification of Navion retract link assembly 145-34106. — Rudolph Chalow
SA02142AK-D	Fabrication and Installation of Aero Twin, Inc. Main Landing Gear Inboard Door Hinge Kit No. DH31-100-1. — Aero Twin, Inc	1999-06-21
SA09066SC	Install LORI Oil Cooler, P/N L8535311. — Honeywell International Inc.	2021-09-22

+ 9 more STCs for the Piper PA-31 Navajo / Chieftain family.

The complete, searchable Supplemental Type Certificates list — with in-app PDF viewing and a combined download — is part of AeroTell.

See all 12 STCs in the AeroTell app →