# STC SH5166NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Erickson Air Crane Inc. dba Erickson Air-Crane, United States
- Description: Re-mounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson detuned engine mouting system (DEMS).
- Applied: March 31, 1982
- 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/e4/e2/e4e2affa8ecd8ed27e58393fb5d1d31cbb91383f2015d4c7a0651ca63f8f85bb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B76497581BADF928862579C1005D6858.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SH5166NM

## ADs that name it (0)

None.

## Approved models (1)

- Erickson Air-Crane Company 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 SH5166NM

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 (S/N 64002) Restricted Category External Load Operation Only.

Description of the Type Design Change: Remounting of the turbine engines and reinforcement of the associated fuselage support structure with Erickson De-tuned Engine Mounting System (DEMS), in accordance with Erickson Master Drawing List No. EA643000, Revision B, dated May 9, 1991, or later FAA approved revision.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other rotorcraft. This approval is limited to the installation of the DEMS on Erickson Model S-64E, Serial Number 64002 only. During the evaluation period and until amendment of this STC, the DEMS must be inspected in accordance with Erickson Supplemental Maintenance Inspection Program Report No., EAC-1018, dated June 4, 1991, or later FAA approved revision. No aircraft or operating limits are changed as a function of this STC. A copy of this Certificate dated March 1, 2001, must be maintained as part of the permanent records for the modified rotorcraft.

This certificate and the supporting data which is the ba sis for approval shall remain in effect until surrendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: March 31, 1982 Date reissued: 08/22/97; 03/01/01

Date of issuance: March 14, 1985 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/e4/e2/e4e2affa8ecd8ed27e58393fb5d1d31cbb91383f2015d4c7a0651ca63f8f85bb)

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