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Fuel systems

STC SH3731SW

FAA DRS lists SH3731SW as Current · Reissued, held by Apical Industries Inc, for Bell Helicopter Textron 412. Recorded change: Installation of 155 gallon capacity external auxiliary fuel system in accordance with drawing list 41228-1000, Revision B, dated February 21, 1987, or later FAA approved revision. Snapshot dated June 30, 2026.

FAA-listed holder
Apical Industries Inc
Aircraft configurations
1
FAA revision date
FAA status
Current · Reissued

Recorded modification

What the FAA record covers

Installation of 155 gallon capacity external auxiliary fuel system in accordance with drawing list 41228-1000, Revision B, dated February 21, 1987, or later FAA approved revision.

SH3731SW 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: Bell Helicopter Textron 412. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bell Helicopter Textron 412H4SW

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bell Helicopter Textron 412 model, serial range, and configuration?
  2. 02Which tanks, plumbing, usable-fuel assumptions, and inspections 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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