# STC SR00506LA

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Helicopter Transport Services LLC, United States
- Description: Installation of Fire Fighting System
- Applied: August 1, 1997
- Status date: January 9, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21
- Data sheets: [TCDS H16NM](https://openairdocs.org/tcds/H16NM), [TCDS R00009SE](https://openairdocs.org/tcds/R00009SE)
- Certificate PDF: https://openairdocs.org/files/sha256/8d/4e/8d4e4953adf852a0a33d7b989c95b5a8cb2b5f40f552068ef00428b469b6a760
- Approved model list and other attachments: [SR00506LA_AML.pdf](https://openairdocs.org/files/sha256/7e/09/7e0961d2234b9808dabeab8ff86eb7896c8264f6c1925f854313b9562e515e73)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/38BD6929B2A7EAB086257C5C006C1D43.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR00506LA

## 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-54A ([TCDS R00009SE](https://openairdocs.org/tcds/R00009SE))

## 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 SR00506LA

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) SR00506LA for list of Model: approved models and applicable airworthiness regulations

Description of the Type Design Change: Installation of a Fire Fighting System in Aviation International Rotors, Inc. CH-54A helicopter in accordance with FAA-approved Drawing List No. H.L. A3130-1000, Revision N/C, dated May 5, 1997, or later FAA-approved revision. FAA-approved Rotorcraft Flight Manual Supplement (RFMS) No.

H.L. A3100-0007, dated August 20, 1997, or later FAA-approved revision is required as part of this installation.

Limitations and Conditions: The approval of this change in type design applies to the aircraft listed in AML SR00506LA only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship 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 aircraft. A copy of this certificate and FAA AML SR00506LA, dated May 15, 2012, or later FAA-approved revision, must be maintained as part of the permanent records for the modified aircraft.

NOTE 1: Noise characteristics: This modification has been excepted from Acoustical Change Determination per § 21.93(b)(4)(i)(8), Amendment 21 .75 of the Federal Aviation Regulations.

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: August 1, 1997 Date reissued: March 7, 2008; January 9, 2014 Date of issuance: December 30, 1997 Date amended: March 7, 2008; May 15, 2012

(Signature)

Manager, Seattle Aircraft Certification Office (Title)

### SR00506LA_AML.pdf

FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR00506LA FOR INSTALLATION OF FIXED TANK FIRE FIGHTING SYSTEM IN AVIATION INTERNATIONAL ROTORS, INC., CH-S4A HELICOPTER

ISSUE DATE: December 30, 1997

Page 1 of 1

**ITEM ROTORCRAFT MAKE**

**ROTORCRAFT MODEL**

**ORIGINAL TC NUMBER**

**CERTIFICATION**

**BASIS FOR**

**ALTERATION**

**FAA APPROVED ROTORCRAFT**

**FLIGHT MANUAL SUPPLEMENT**

INSTALLATION INSTRUCTIONS AML REV DATE Number Revision* Report Number Revision*

1. Helicopter Transport Services CH-54A H16NM FAR 21.25(a)(2) and CAR 8, dated October 11, 1950.

See Type Certificate Data Sheet H1EA for complete description.

H.L. A3130-0007 August 20, 1997 A3130-0003 Revision N.C, dated September 9, 1997

3/7/08

2. Helicopter Transport Services CH-54A R00009SE FAR 21.25(a)(2) and CAR 8, dated October 11, 1950.

See Type Certificate Data Sheet R00009SE for complete description.

H.L. A3130-0007 August 20, 1997 A3130-0003 Revision N.C, dated September 9, 1997

1/9/14 * Or later FAA Approved Revision

FAA Approved:

Manager, Seattle Aircraft Certification Office AMENDED: March 7, 2008; May 15, 2012 REISSUED: March 7, 2008; January 9, 2014

## Every issue (3)

- January 9, 2014: Amended, Current. [certificate](https://openairdocs.org/files/sha256/8d/4e/8d4e4953adf852a0a33d7b989c95b5a8cb2b5f40f552068ef00428b469b6a760), [SR00506LA_AML.pdf](https://openairdocs.org/files/sha256/7e/09/7e0961d2234b9808dabeab8ff86eb7896c8264f6c1925f854313b9562e515e73)
- May 15, 2012: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/b5/01/b501b9a66f8ac69a52004b7e0857bf5316b70fa2f3bc43cdccf06bf80df80a91), [AML SR00506LA.pdf](https://openairdocs.org/files/sha256/8e/17/8e17826526ecc4afc6acbf7f25cc1f3125e3313b9d81f644916dc7caca7f9b3d)
- March 7, 2008: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/b9/23/b923698e5a291a33f9464873d322c9897f3bd4e5e7d7926af56ef1a7669c71fd), [AML SR00506LA.pdf](https://openairdocs.org/files/sha256/53/54/535464a49956f02f8e3381a73730fcf3c6a63dace86cace2cffa1e50437dd9aa)

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