# STC SH435NW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Columbia Helicopters Inc, United States
- Description: Fuselage structural modification.
- Applied: March 18, 1977
- Status date: December 16, 1991
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 133
- Data sheets: [TCDS H1PC](https://openairdocs.org/tcds/H1PC)
- Certificate PDF: https://openairdocs.org/files/sha256/03/42/0342cf7294ed6a68fa6e95b56000ab9a84f1f4ddeed0679d35e4647abc0c0da6
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C4543698BAD49A3F85256CC2005C3221.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH435NW

## ADs that name it (0)

None.

## Approved models (1)

- Kawasaki Heavy Industries Limited KV107-II ([TCDS H1PC](https://openairdocs.org/tcds/H1PC))

## 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 SH435NW

This certificate, issued to Columbia Helicopters P.O. Box 3500 Portland, OR

Part 7 of the Civil Air Regulations.

dated August 1, 1956 (See T.C. Data Sheet H1PC) Original ProductType Certificate Number: H1PC Make: Kawasaki Model: KV 107-11

Description of the Type Design Change: Fuselage structural modification in accordance with the FAA sealed Columbia Helicopters, Inc. Drawing List No. 11, dated March 18, 1977, which allows operations at increased gross weights for external load operations only.

Limitations and Conditions: The approval of this change in type design applies to Kawasaki KV 107-11 helicopter, S/N 4001, 4003, 4005, 4011 and 4012 only. Columbia Helicopters FAA approved Rotorcraft Flight Manual dated October 16, 1991, or later FAA approved revision, is required. STC Addendum No. SH435NW is part of the Certificate. A copy of this Certificate shall be maintained as part of the modified aircraft's permanent records.

Date of application: March 18, 1977 Date reissued:

Date of issuance: April 12, 1977 Date amended: March 31, 1983; December 16, 1991

(Signature)

Manager, Seattle Aircraft Certification Office (Title)

Number SH435NW

**SUPPLEMENTAL TYPE CERTIFICATE ADDENDUM NO. SH435NW**

The conditions and limitations of Type Certificate Data Sheet No. H1PC apply except as follows:

This STC Addendum, which is a part of Supplemental Type Certificate No. SH435NW, prescribes conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Civil Air Regulations.

SUPPLEMENTAL TYPE CERTIFICATE HOLDER: COLUMBIA HELICOPTERS, INC.

Note: The Supplemental Type Certificate holder has demonstrated compliance with FAR 133.43 (Structures and design) for the KV 107-11 helicopter for Class B (Jettisonable cargo hook load) Rotorcraft - Load Combination at a maximum overall weight of 22,000 pounds and a maximum cargo hook load of 11,500 pounds when the helicopter is modified in accordance with Vertol Drawings 107S7350 and 107S7353 and Easter Rotorcraft cargo hook P/N SP7110-1A is installed. Rotor pitch housings P/N 107R2553-7, -8, -9, - 10, -13, -14, -15, or -16 must be installed for operations in excess of 19,000 pounds. The helicopter weight without cargo hook load is not to exceed certificated weight of 19,000 pounds. For limitations, see Columbia Helicopters FAA approved Rotorcraft Flight Manual dated October 16, 1991, or later FAA approved revision, and Rotorcraft - Load Combination Flight Manual to be submitted by applicant for external load operator's certificate in accordance with FAR 133.

-END-

**FAA FORM 8110-2-1 (10-69) PAGE 3 OF 3 PAGES**

## Every issue (1)

- December 16, 1991: Amended, Current. [certificate](https://openairdocs.org/files/sha256/03/42/0342cf7294ed6a68fa6e95b56000ab9a84f1f4ddeed0679d35e4647abc0c0da6)

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