Sikorsky S-51 Supplemental Type Certificates (STCs)

12 STCs approved for the Sikorsky S-51 (S-51) 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 This list is for research convenience and may be incomplete or out of date.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 Sikorsky S-51 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
SH3319NM	Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system, — Precise Flight Inc	2023-04-14
SA4-180	Installation of VIP P/N 101-78 engine mounts. — FTG, Inc.	2022-05-13
SR02704SE	Installation and maintenance of the Sunspot 36 and 46 series lights — AeroLEDS LLC	2020-12-17

+ 9 more STCs for the Sikorsky S-51 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 →