# STC SH1166NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Simplex Manufacturing Company, United States
- Description: Installation of a Simplex Manufacturing Company Spray System
- Applied: January 8, 1981
- Status date: November 19, 1984
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H7SW](https://openairdocs.org/tcds/H7SW)
- Certificate PDF: https://openairdocs.org/files/sha256/ab/62/ab62c47b45d7fa25465d1ed00ba04d131f1565c28ae4e2e96d1fa654f4918f1f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E18C172E05CFE5B786257A3D0059C254.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH1166NW

## ADs that name it (0)

None.

## Approved models (2)

- McCreary Gifton OH-13E ([TCDS H7SW](https://openairdocs.org/tcds/H7SW))
- McCreary Gifton OH-13H ([TCDS H7SW](https://openairdocs.org/tcds/H7SW))

## 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 SHI166NW This certificate issued to: le Simplex Manufacturing Company Certifies that the change in the type design for the following product with the lantatuns and condituns therefor as specified hereen meets the airesthness ryurements of Part 6 of the Civil Air Regulalins, dated October 2, 1959, and Part 21.25 (a) (2) of the Federal Aviation Regulations Original Product - ype tiereficale. Number Make Texas Helicopter Corporation (Bell) Mictel OH-13E/M74 and OH-13H/M74A (as modified by Note 3 of the TCDS H7SW) Description of Type Design Change: .

Installation of a Simplex Manufacturing Company Model 5650 Spray System in accordance with Simplex Manufacturing Company drawing list titled Model 5650 Spray System', Rev. D, dated September 14, 1983, or Later FAA Approved Revision.

fdalund andfundlend Approval of this change in type design applies basically to the above model helicopters only. This approval should not be extended to other helicopters of this model on which other previously approved modifications are incorporated unless it is determined 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 helicopter. A copy of this Certificate, Addendum No. SH1166NW, and FAA Approved Rotorcraft Flight Manual Supplement shall be maintained as part "n on effeel until sur rendered, suspended, reuked, or a lers nation date is thererse estaldushed by the dunes trate r of the Federal maten tunes/ration Jale/appleten January 8, 1981 I ate of essence February 10, 1981 November 19, 1984 AVIATION By diretion of the Amnestrates JEsterman ESignature TOMINISTRY TIO Manager, Seattle Aircraft Certification Office ( 1 stie ) :A FAR 21 4 FAA FoR 8110-2|10-68.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) February 10, 1981 Number: SH1166N4 Supplemental Type Certificate ADDENDUM NO. SH1166NW This STC Addendum, which is part of Supplemental Type Certificate No. SH1166NW, prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations.

This Addendum supersedes the Type Certificate Data Sheet H7SW only where noted.

Supplemental Type Certificate HOLDER: Simplex Manufacturing Company

1. TEXAS HELICOPTER CORP. (BELL) MODELS OH-13E/M74 AND OH-13H/M74A 1PCLH (RESTRICTED CATEGORY) AS MODIFIED BY STC SH1166NW Placards: Place this placard in the following places;

1. On the instrument panel in clear view of the pilot, and

2. Adjacent to the tank assembly filler neck.

**CAUTION**

**ONLY FILL SPRAY TANK WITH**

**HELICOPTER IN LEVEL ATTITUDE TO ASSURE PROPER FLUID LEVEL.**

DO NOT EXCEED THE GROSS WEIGHT AND C. G. LIMITS Place this placard in full view of the pilot:

**WITH THE SIMPLEX MODEL 5650**

**SPRAY SYSTEM INSTALLED THE VNE WILL BE 70 MPH CAS (61 KNOTS)**

- END - 47 PAGE 3OF 3PAGES C FAA AC 73-2651

## Every issue (1)

- November 19, 1984: Amended, Current. [certificate](https://openairdocs.org/files/sha256/ab/62/ab62c47b45d7fa25465d1ed00ba04d131f1565c28ae4e2e96d1fa654f4918f1f)

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