# STC SR01241SE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Helicopter Transport Services LLC, United States
- Description: Installation of Concorde RG-390E Lead Acid Battery
- Applied: October 16, 2002
- Status date: September 6, 2018
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS H16NM](https://openairdocs.org/tcds/H16NM), [TCDS H14NM](https://openairdocs.org/tcds/H14NM)
- Certificate PDF: https://openairdocs.org/files/sha256/10/ac/10ac6485ce932bcdd51fa53167f475da283fc1b5fa4a14bb4eb4f0e8fa10ab2a
- Approved model list and other attachments: [SR01241SE_AML.pdf](https://openairdocs.org/files/sha256/6a/a1/6aa16d7766250aea5bbeae22a4f2c9b53f2e6cd6ef3533cfb72ea886cc7a1bc1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/68DA5A963C7AAC328625830700528D24.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SR01241SE

## ADs that name it (0)

None.

## Approved models (2)

- Helicopter Transport Services LLC CH-54A ([TCDS H16NM](https://openairdocs.org/tcds/H16NM))
- Helicopter Transport Services LLC CH-54B ([TCDS H14NM](https://openairdocs.org/tcds/H14NM))

## 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.

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate

Number SR01241SE

This certificate, issued to Helicopter Transport Services, LLC 14497 Keil Road NE Aurora, OR 97002

Part * of the * Regulations.

Original ProductType Certificate Number: * See attached Federal Aviation Administration (FAA) Make: Approved Model List (AML) SR01241SE for approved Model: aircraft models and applicable airworthiness regulations

Description of the Type Design Change: Installation of Concorde RG-390E Lead Acid Battery in accordance with installation drawing and Instructions for Continued Airworthiness (ICA) documents as listed on the AML.

The installed equipment must be maintained in accordance with the ICA as listed on the AML.

Limitations and Conditions: Approval of this change in type design applies to the rotorcraft listed on AML SR01241SE only. This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate, AML SR01241SE, the applicable installation drawing, and the applicable ICA 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: October 16, 2002 Date reissued: January 9, 2014 Date of issuance: July 17, 2003 Date amended: September 6, 2018

FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator

(Signature)

Manager, Seattle ACO Branch (Title)

### SR01241SE_AML.pdf

FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR01241SE FOR INSTALLATION OF CONCORDE RG-390E LEAD ACID BATTERY

ISSUE DATE: September 6, 2018

Page 1 of 1

**ITEM ROTORCRAFT MAKE**

**ROTORCRAFT MODEL**

**ORIGINAL TC NUMBER**

**CERTIFICATION**

**BASIS FOR**

**ALTERATION**

**FAA-ACCEPTED**

**INSTRUCTIONS FOR**

**CONTINUED**

**AIRWORTHINESS (ICA)**

**FAA APPROVED INSTALLATION**

DRAWING AML REV DATE Document Revision** Drawing Revision*

1. Helicopter Transport Services, Inc.

CH-54B H14NM 14 CFR part 29, Amendment 29-2 Concorde Document 5-0142 Revision F, dated June 20, 2002 HTS-LIBID-001

Revision A, dated January 16, 2018

9/6/18

2. Helicopter Transport Services, Inc.

CH-54A H16NM 14 CFR part 29, Amendment 29-2 Concorde Document 5-0142

Revision F, dated June 20, 2002 HTS-LIBID-001

Revision A, dated January 16, 2018

9/6/18 * Or later FAA Approved Revision ** Or later FAA Accepted Revision

FAA Approved:

Manager, Seattle ACO Branch AMENDED:

REISSUED:

## Every issue (3)

- September 6, 2018: Amended, Current. [certificate](https://openairdocs.org/files/sha256/10/ac/10ac6485ce932bcdd51fa53167f475da283fc1b5fa4a14bb4eb4f0e8fa10ab2a), [SR01241SE_AML.pdf](https://openairdocs.org/files/sha256/6a/a1/6aa16d7766250aea5bbeae22a4f2c9b53f2e6cd6ef3533cfb72ea886cc7a1bc1)
- January 9, 2014: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/55/ac/55acb5b166a159115f2abc605936eb42760b9e56dc8ef331fc89e53fcc089020)
- July 17, 2003: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/d3/a0/d3a0ce33083345a887e0f39e7614c54ac07c1d84b60793419b283da6a8b10d1d)

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