# STC SA125SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: TALCO Aviation, United States
- Description: Installation of Turbocharged Lycoming G0-480- G1D6 engine (STC SE124SO)
- Applied: January 7, 1965
- Status date: August 31, 2023
- Product: Aircraft, Single-Engine
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8)
- Certificate PDF: https://openairdocs.org/files/sha256/4b/c1/4bc1561493a700242c57aee00cc748a9052765d3de227e373a7611b38c174553
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID135097424320231205152056.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA125SO

## ADs that name it (1)

- [AD 81-19-04](https://openairdocs.org/ad/81-19-04): Hose Assembly · Rajay Hose Assemblies, 500A, 500B and 87 more. Effective Sep 17, 1981. Cited in the text

## Approved models (1)

- Helio Aircraft LLC H-395 (USAF L-28A or U-10B) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

SA125SO TALCO Aviation 3015 E. New York St, STE A2-270 Aurora, IL 60504 * * 1A8 Helio H395 Installation of Turbocharged Lycoming GO-480-G1D6 engine (STC SE124SO) per FAA approved Roto- Master (Rajay/Riley Aeronautics Corporation) Drawing List No. R0014. FAA approved flight manual supplement, dated 3/19/65 or later FAA approved revision and Turbo 1300 Owner's Manual required with this installation.

(See continuation sheet 3 of 3) January 7, 1965 May 22, 1968; January 14, 1969; February 10, 1982; October 30, 1987;

September 22, 1995; December 19, 2003; July 3, 2006; March 16, 2007; March 5, 2018; February 2, 2021;

August 31, 2023 March 19, 1965 March 21, 1985 for Paul (Vu) Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3

SA125SO 3

SA125SO Date of Issuance: March 19, 1965 Date Amended: March 21, 1985 Date of Reissuance: August 31, 2023

*Part 3 of the Civil Air Regulations effective November 1, 1949, as amended to May 16, 1953.

The approval of this change in type design applied basically to the H-395 only. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. This determination should include consideration of significant changes in weight distribution such as an increase in the fixed disposable weight in the fuselage.

-END-

## Every issue (3)

- August 31, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4b/c1/4bc1561493a700242c57aee00cc748a9052765d3de227e373a7611b38c174553)
- March 5, 2018: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/41/81/4181c11e7ddd22b8da4c601e9b6c4de5fd6f1ff19e3f4835600ce2aafb65ba1a)
- July 3, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f6/18/f618b0d87333de24e5004fe07d880e02225d59da049767fd0f174faf8aa7b54a)

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