# STC SH579NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Erickson Air Crane Inc. dba Erickson Air-Crane, United States
- Description: Install Vickers hoist pump, APU starter motor and handpump for rotor brake system.
- Applied: February 22, 1978
- Status date: March 1, 2001
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS H6EA](https://openairdocs.org/tcds/H6EA)
- Certificate PDF: https://openairdocs.org/files/sha256/f0/c3/f0c3fa501df1ba7065145d9e83450da30ee8aa83d93f2db8e371ea73c76b160f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CA1C64CDBEF5A3E986257A45004FF321.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SH579NW

## ADs that name it (0)

None.

## Approved models (1)

- Sikorsky Aircraft Corporation S-64E ([TCDS H6EA](https://openairdocs.org/tcds/H6EA))

## 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 SH579NW This certificate, issued to Erickson Air-Crane, Inc.

dba Erickson Air-Crane 3100 Willow Springs Road Central Point, OR 97502 Part 29 of the Federal Aviation Regulations.

Original ProductType Certificate Number: H6EA Make: Erickson Model: S-64E Description of the Type Design Change: Installation of a Vickers, Inc., Hoist Pump (Yoke Type), P/N ACH60552L6, in accordance with Erickson Air-Crane Company Data Specification No. EAC 1000 and Photos (1) and (2).

NOTE: This hoist pump replaces Sikorsky P/N IPV093L001S.

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 this model 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 and Erickson Air-Crane Company Data Specification No. EAC 1000 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: February 22, 1978 Date reissued: 08/22/97; 03/01/01 Date of issuance: March 24, 1978 Date amended: 03/01/01

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)

## Every issue (1)

- March 1, 2001: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f0/c3/f0c3fa501df1ba7065145d9e83450da30ee8aa83d93f2db8e371ea73c76b160f)

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