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Other aircraft modifications

STC SR04422CH

FAA DRS lists SR04422CH as Current · Issued, held by National Aircraft Service Inc, for Sikorsky Aircraft S-70, Sikorsky Aircraft S-70C, and Sikorsky Aircraft S-70C(M), and 2 more aircraft configurations. Recorded change: Installation of NASI NTEC36TM Cooling System in accordance with Master Data List (MDL) as listed on AML No. SR04422CH, or later FAA approved revision. Snapshot dated June 30, 2026.

FAA-listed holder
National Aircraft Service Inc
Aircraft configurations
5
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of NASI NTEC36TM Cooling System in accordance with Master Data List (MDL) as listed on AML No. SR04422CH, or later FAA approved revision.

SR04422CH 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: Sikorsky Aircraft S-70, Sikorsky Aircraft S-70C, and Sikorsky Aircraft S-70C(M), and 2 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Sikorsky Aircraft S-70H2NESikorsky Aircraft S-70CH3NESikorsky Aircraft S-70C(M)H4NESikorsky Aircraft S-70C(M1)H4NESikorsky Aircraft S-70AH5NE

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Sikorsky Aircraft S-70 and Sikorsky Aircraft S-70C, and 3 more aircraft configurations model, serial range, and configuration?
  2. 02Which configuration, parts, installation data, limitations, and ICAs apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

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