# STC SH849NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: R-S Sales Inc., United States - Description: Installation of North American Industries, Inc., Model No. 5 Automatic Flagman - Applied: October 3, 1978 - Status date: August 27, 2001 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS 4H10](https://openairdocs.org/tcds/4H10), [TCDS 4H11](https://openairdocs.org/tcds/4H11) - Certificate PDF: https://openairdocs.org/files/sha256/d0/d8/d0d86ccb94dd21768c1a6cdefbb6ef495bc44def593ebb672758dc6d51f106cc - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3E38FDDF51EEDBC286257A2C006BCD1B.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SH849NW ## ADs that name it (0) None. ## Approved models (2) - Hiller Aviation UH-12D ([TCDS 4H10](https://openairdocs.org/tcds/4H10)) - Siam Hiller Holdings Inc. UH-12E ([TCDS 4H11](https://openairdocs.org/tcds/4H11)) ## 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. Number SH849NW This certificate, issued to R-S Sales, Inc. 170 O’Connor Road Lewiston, ID 83501 Part 6 of the Civil Air Regulations. Original ProductType Certificate Number: 4H11 4H10 Make: Hiller Hiller Model: UH-12E (Rest. Cat.) UH-12D (Rest. Cat.) Description of the Type Design Change: Installation of North American Industries, Inc., Model No. 5 Automatic Flagman in accordance with North American Industries, Inc., Installation Instructions No. 12-1000. NOTE: The same airspeed, weight, C. G. range limitation, and PLACARDS apply for this installation as specified in Type Certificate Data Sheet No. 4H11 and 4H10 for spray booms in the RESTRICTED CATEGORY. Limitations and Conditions: Approval of this change in type design applies to the above model rotorcraft only. This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer, that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this Certificate must be maintained as part of the permanent records for the modified rotorcraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. Date of application: October 3, 1978 Date reissued: 04/02/86; 08/27/01 Date of issuance: October 24, 1979 Date amended: 06/08/81; 08/27/01 (Signature) Acting Manager, Seattle Aircraft Certification Office (Title) ## Every issue (1) - August 27, 2001: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/d0/d8/d0d86ccb94dd21768c1a6cdefbb6ef495bc44def593ebb672758dc6d51f106cc) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.