# STC SR01279SE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Helicopter Transport Services LLC, United States
- Description: Installation of the Aero-Craft Utility Hydraulic Pump, Part Number (P/N) AP6VSPL
- Applied: October 16, 2002
- Status date: January 9, 2014
- Product: Aircraft, Rotorcraft
- Certification basis: Part 21, Part 29
- Data sheets: [TCDS H14NM](https://openairdocs.org/tcds/H14NM)
- Certificate PDF: https://openairdocs.org/files/sha256/36/a2/36a2bcd6478e1c735ee744850e81464204ff56daf7a5cb58b7a3104efdf49b90
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F3486CE9D60A8B3B86257C5C00706C28.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SR01279SE

## ADs that name it (0)

None.

## Approved models (1)

- Helicopter Transport Services Inc. 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.

Number SR01279SE

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

Part 29 of the Federal Aviation Regulations.

Original ProductType Certificate Number: H14NM Make: Helicopter Transport Services Model: CH-54B

Description of the Type Design Change: Installation of the Aero-Craft Utility Hydraulic Pump, Part Number (P/N) AP6VSPL in accordance with Helicopter Transport Services, Inc. (HTSI) Master Drawing List Document Number HTS-UHPMDL-001, Revision I/R, dated October, 16, 2002, or later Federal Aviation Administration (FAA) approved revision. This modification must be maintained in accordance with the maintenance instructions for the original Stratopower pump, P/N 65WK06001. No additional continued airworthiness instructions are required.

Limitations and Conditions: Approval of this change in type design applies to the HTSI Model CH-54B rotorcraft only. Rotorcraft modified by this supplemental type certificate must be operated in accordance with the Rotorcraft Flight Manual Supplement (RFMS) HTS-UHPFMS-54B-001, Revision -, FAA approved January 27, 2005, or later FAA-approved revision. A copy of this certificate, the maintenance instructions, and the RFMS 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 permissions.

Date of application: October 16, 2002 Date reissued: January 9, 2014 Date of issuance: October 8, 2003 Date amended: January 27, 2005

(Signature)

Manager, Seattle Aircraft Certification Office (Title)

**FAA FORM 8110-2(10-68 PAGE 1 OF 2 PAGES**

## Every issue (2)

- January 9, 2014: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/36/a2/36a2bcd6478e1c735ee744850e81464204ff56daf7a5cb58b7a3104efdf49b90)
- January 27, 2005: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/ca/e1/cae18a26abbdf4af6fcd0e3c69c1b522a215f6c8be021bda35af12c2c62c732a)

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