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No. of STCs: 12

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01084SE	Status: Historical	App Date: 02/12/2002	Rev Date: 05/05/2008
Description: Fabrication and installation of HTS-OCB-001 Electric Oil Blower Assembly per Helicopter Transport Services, Inc. (HTSI) Master Drawing List No. HTS-MDL-001, Revision IR, dated January 14, 2002, or later FAA approved revision. Limited to S/N's 69-18467, 69-18470, and 69-18484, only.
TC Nos.: H14NM
Models: Sikorsky Aircraft CorporationCH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01084SE	Status: Historical	App Date: 02/12/2002	Rev Date: 05/13/2002
Description: Fabrication and installation of HTS-OCB-001 Electric Oil Blower Assembly per Helicopter Transport Services, Inc. (HTSI) Master Drawing List No. HTS-MDL-001, Revision IR, dated January 14, 2002, or later FAA approved revision. Limited to S/N's 69-18467, 69-18470, and 69-18484, only.
TC Nos.: H14NM
Models: Sikorsky Aircraft CorporationCH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01084SE	Status: Historical	App Date:	Rev Date: 05/13/2002
Description: Fabrication and installation of HTS-OCB-001 Electric Oil Blower Assembly per Helicopter Transport Services, Inc. (HTSI) Master Drawing List No. HTS-MDL-001, Revision IR, dated January 14, 2002, or later FAA approved revision. Limited to S/N's 69-18467, 69-18470, and 69-18484, only.
TC Nos.: H14NM
Models: Sikorsky Aircraft CorporationCH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01209SE	Status: Historical	App Date: 03/12/2003	Rev Date: 05/13/2002
Description: Installation of Replacement Electric Starter for Auxiliary Power Unit
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01241SE	Status: Historical	App Date: 10/16/2002	Rev Date: 07/17/2003
Description: Installation of the Concorde RG-390E Lead Acid Battery in accordance with Helicopter Transport Services, Inc. (HTSI) Document No. HTS-LIBID-001, Installation Drawings for Concorde Valve Regulated Lead Acid Battery P/N RG-390E, Revision IR, dated October 16, 2002, and Section 7 of Concorde s document 5-0142, Instructions for Continued Airworthiness/Maintenance Manual Supplement Concorde Valve Regulated Lead-Acid Main Battery, Revision F, dated June 20, 2002, or later FAA approved revisions. This modification must be maintained in accordance with Concorde s document 5-0142 listed above.
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01268SE	Status: Historical	App Date: 04/29/2002	Rev Date: 06/29/2006
Description: Fabrication and installation of the Single Point Fixed Pendant.
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01279SE	Status: Historical	App Date: 10/16/2002	Rev Date: 01/27/2005
Description: Installation of the Aero-Craft Utility Hydraulic Pump, 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 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.
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01571SE	Status: Historical	App Date: 01/30/2003	Rev Date: 06/29/2005
Description: Fabrication and installation of Helicopter Transport Services, Inc. (HTSI) Automatic Flight Control System (AFCS)
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01741SE	Status: Historical	App Date: 01/18/2006	Rev Date: 03/02/2007
Description: Installation of an upgraded Fuel Quantity Indicating System.
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR01839SE	Status: Historical	App Date: 10/27/2003	Rev Date: 05/02/2008
Description: Remove the components from the hydraulic sled at Station 380 and install on the sled at Station 435.5, and remove the sled at Station 380,
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR02036SE	Status: Historical	App Date: 06/05/2003	Rev Date: 11/20/2009
Description: Modification of main rotor blade part number 6415-20601-041, -042, and -043
TC Nos.: H14NM
Models: Helicopter Transport Services Inc.CH-54B
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500

STC Holder: Helicopter Transport Services Inc. 5806 SW. Plumley Street, Corvallis, OR 97333, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SR02055SE	Status: Historical	App Date: 03/15/2007	Rev Date: 03/12/2010
Description: Fabrication of a replacement tail rotor blade, part number 65161-00001-041MII, in accordance with Metal Innovations Master Drawing List No. MIIDoc00065, Revision B, dated February 17, 2010, or later FAA-approved revision. This is a direct replacement for part number 65161-00001-041. It has been determined that separate or additional Instructions for Continued Airworthiness and Installation Instructions are not necessary because this is a replacement part.
TC Nos.: H14NM, H16NM, H17NM, H18NM, H6EA, R00009SE
Models: Erickson Air-Crane CompanyS-64E, S-64F Evergreen Helicopters Inc.CH-54A Helicopter Transport Services Inc.CH-54B Helicopter Transport Services LLCCH-54A Siller Helicopters LLCCH-54A Silver Bay Logging Inc.CH-54A
ACO: Seattle ACO Branch, Tel: +1 (206) 231-3500