STC SR09913AC

FAA DRS lists SR09913AC as Current · Reissued, held by Helicopter Transport Services LLC, for Helicopter Transport Services CH-54B, Helicopter Transport Services CH-54A (H16NM), and Helicopter Transport Services CH-54A (R00009SE). Recorded change: Installation of Composite Main Rotor Blade. Snapshot dated June 30, 2026.

FAA-listed holder

Helicopter Transport Services LLC

Aircraft configurations

FAA revision date

December 16, 2020

FAA status

Current · Reissued

Recorded modification

What the FAA record covers

SR09913AC identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Helicopter Transport Services CH-54B, Helicopter Transport Services CH-54A (H16NM), and Helicopter Transport Services CH-54A (R00009SE). Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Helicopter Transport Services CH-54BH14NM Helicopter Transport Services CH-54A (H16NM)H16NM Helicopter Transport Services CH-54A (R00009SE)R00009SE

Buyer checks

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SA01270NYPropellersRevised Mar 9, 2004

Installation of Lycoming IO 540-K1B5 engines and Hartzell Propeller Hub, HC-F3YR-2U with blades, FC 8468-6R and Propeller Governor, F-6-11A.

FAA holder: Bazet Randolph August III

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SR09172RCPropellersRevised Dec 24, 2003

Installation of a replacement main rotor blade without a leading edge abrasion strip, part number 500P2100-BSC and BS-1 per Helicopter Technology Company (HTC) Maintenance Manual HTCM-001 latest FAA approved revision.

FAA holder: Helicopter Technology Co

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SR01210NYPropellersRevised Oct 17, 2003

Extension of main rotor blade, P/N 61170-20201 series. For model S-61A, serial numbers 61-063, 61-147, 61-232, 61-272; for model S-61N, 61-216, 61-220, 61-242, 61-744; for model S-61R, 61-551.

FAA holder: Carson Helicopters, Inc

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SA02737ATPropellersRevised Oct 2, 2003

Installation of a Hartzell model PHC-C3YF-1RF propeller with F8468AK-8R blades in accordance with Mike Stohler s "Installation Instructions" Rev. IR dated September 19, 2003 or later FAA approved revision. Mike Stohler s "Instructions for Continued Airworthiness", Rev. IR dated September 19, 2003 or later FAA approved revision are a required part of this modification.

FAA holder: Stohler Mike

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What the FAA record covers

Aircraft named in FAA DRS

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Related propellers STCs

Installation of Lycoming IO 540-K1B5 engines and Hartzell Propeller Hub, HC-F3YR-2U with blades, FC 8468-6R and Propeller Governor, F-6-11A.

Installation of a replacement main rotor blade without a leading edge abrasion strip, part number 500P2100-BSC and BS-1 per Helicopter Technology Company (HTC) Maintenance Manual HTCM-001 latest FAA approved revision.

Extension of main rotor blade, P/N 61170-20201 series. For model S-61A, serial numbers 61-063, 61-147, 61-232, 61-272; for model S-61N, 61-216, 61-220, 61-242, 61-744; for model S-61R, 61-551.