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Other aircraft modifications

STC SA4557NM

FAA DRS lists SA4557NM as Current · Reissued, held by Heavy Lift Helicopters Inc, for USDA Forest Service C-130A. Recorded change: Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation. (Approved for SN 56-0530 only). Snapshot dated June 30, 2026.

FAA-listed holder
Heavy Lift Helicopters Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation. (Approved for SN 56-0530 only).

SA4557NM 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: USDA Forest Service C-130A. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

USDA Forest Service C-130AA15NM

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact USDA Forest Service C-130A 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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