# STC SH484NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Soloy LLC, United States
- Description: Installation of dual collective and turbine engine controls
- Applied: July 7, 1977
- Status date: July 13, 1977
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS 4H11](https://openairdocs.org/tcds/4H11)
- Certificate PDF: https://openairdocs.org/files/sha256/25/b6/25b6475322b2a7e2ba96cb2c7fb2b65d7abf50c4b9310e2165c16e6bc8824329
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0F9F5E43F1E582F186257A4600516E36.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH484NW

## ADs that name it (0)

None.

## Approved models (1)

- Siam Hiller Holdings Inc. UH-12E ([TCDS 4H11](https://openairdocs.org/tcds/4H11))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SH484NW This certificate issued to: SOLOY CONVERSIONS, LTD Part 6 of the CiviI Air Reyulations, Effective December 20, 1956.

Original Product - Type tertificate Lumber: 4H11 Make: Hiller Model: UH-12E (4 place) Vescriplin d'ype Jesign thange: Installation of dual collective and turbine engine controls in accordance with Soloy Top Drawing 560-1000 and photographs 1 through 4.

Limilaluna andfunditina Data pertaining to this modification are considered inadequate for duplication in other helicopters. lation in Hiller UH-12E, Serial Number 2098 only. A copy of this Certificate and This approval is limited to the instal- FAA Approved Rotorcraft Flight Manual Supplement shall be maintained as part of the permanent records for the modified aircraft.

Jule f applicution: July 7, 1977 Date Reissued:

Date of Issuance: July 13, 1977 Date Amended:

AVIATION By Direction of the Administrator . D.2. • Raggen TOMINISTRATO Acting Chief, Engincering and Manufacturing Branch ('Title ) 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- July 13, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/25/b6/25b6475322b2a7e2ba96cb2c7fb2b65d7abf50c4b9310e2165c16e6bc8824329)

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