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

239 STCs approved for the Piper PA-31 Navajo / Chieftain (PA-31T Cheyenne I) 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 This list is for research convenience and may be incomplete or out of date.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
SA01844WI	Installation of Garmin GFC 600 Automatic Flight Control System — Garmin International Inc.	2026-05-14
SA04046CH PAGE 2	Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500) — Acron Aviation Inc.	2025-04-01
SA02738CH (PAGE 2)	Installation of L-3 Communications Avionics Systems — Acron Aviation Inc.	2025-04-01

+ 236 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 239 STCs in the AeroTell app →