# STC SH848NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Simplex Manufacturing Co, United States
- Description: Fabrication and installation of Simplex 4900 spray tank system.
- Applied: June 5, 1979
- Status date: February 10, 2023
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 21
- Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW)
- Certificate PDF: https://openairdocs.org/files/sha256/ff/58/ff58918bfd891a5ea3415395f8b7f9d93dcce0bbd5b5bed9b013883b34547286
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID117201249320230215173044.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH848NW

## ADs that name it (0)

None.

## Approved models (2)

- Bell Helicopter Textron Canada Limited 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))
- Bell Helicopter Textron Canada Limited 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW))

## 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.

SH848NW Simplex Manufacturing Company 24450 NE. Whitaker Way Portland, OR 97230 Part 6 Civil Air Regulations H2SW Bell 206A, 206B Fabrication of Simplex 4900 spray tank system in accordance with Simplex Master Drawing List No. MDL-4900, Revision AN, dated April 4, 2022, or later Federal Aviation Administration (FAA) approved revision; Installed in accordance with Installation Document No.

4900-102002-001, Revision B, dated December 16, 2022, or later FAA-approved revision. Maintained in accordance with Instructions for Continued Airworthiness (ICA) listed in Simplex Maintenance Manual Document No. 4900-102005-001, Revision A dated April 25, 2017, or later FAA-approved revision, and operated in accordance with Rotorcraft Flight Manual Supplement (RFMS) 4900-102003-002 Revision A dated October 31, 2022 or later FAA-approved revision.

Approval of this change in type design applies to the Bell model rotorcraft listed above only, that are equipped with FAA Approved extended landing gear listed in Installation Document No.

4900-102002-001, Revision B, dated December 16, 2022, or later FAA-approved revision., and the Simplex Model 7600 electrical system installed in accordance with Supplemental Type Certificate (STC) No. SH4173NM. This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined that the relationship between this change and any 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, the ICA and the RFMS shall be maintained as part of the permanent records of the modified helicopter.

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.

June 5, 1979 October 22, 1979 5/18/87; 11/5/98; 12/19/17; 2/10/23 for Acting Manager, Seattle ACO Branch

SH848NW

## Every issue (4)

- February 10, 2023: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ff/58/ff58918bfd891a5ea3415395f8b7f9d93dcce0bbd5b5bed9b013883b34547286)
- February 10, 2023: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/1f/4e/1f4eafe2f5e14d2f3418bdb66770458437137fce0d6acfc148037f9f0943b063)
- December 20, 2017: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/de/44/de44eb57d4158bcf45b3c92b0e78f4f69d4bf323b0f21a11763bf9ae62d8d7c5)
- November 5, 1998: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/6f/e8/6fe83afe2f3d15427ed5daa1dabdb24fc54cfa5469f335efc57d7058a683c381)

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