Bell 525 Relentless Supplemental Type Certificates (STCs)

13 STCs approved for the Bell 525 Relentless (525 Relentless) 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 This list is for research convenience and may be incomplete or out of date.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 Bell 525 Relentless 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
SA04837NY	Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights — AeroLED's Holdings, LLC	2024-08-27
SA00765DE	Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor — Peregrine	2018-12-19
SA01933LA-D (1 OF 2)	Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System — Garmin International Inc	2017-11-30

+ 10 more STCs for the Bell 525 Relentless family.

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

See all 13 STCs in the AeroTell app →