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Electrical systems

STC SR04637CH

FAA DRS lists SR04637CH as Current · Issued, held by Airwolf Aerospace LLC, for Bell Helicopter Textron Canada 206, Bell Helicopter Textron Canada 206A, and Bell Helicopter Textron Canada 206A-1 (OH-58A), and 36 more aircraft configurations. Recorded change: Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel. Snapshot dated June 30, 2026.

FAA-listed holder
Airwolf Aerospace LLC
Aircraft configurations
39
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Replacement of existing main ship battery with Lithium Ion Battery and installation of Annunciator Control Panel.

SR04637CH 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 Canada 206, Bell Helicopter Textron Canada 206A, and Bell Helicopter Textron Canada 206A-1 (OH-58A), and 36 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bell Helicopter Textron Canada 206H2SWBell Helicopter Textron Canada 206AH2SWBell Helicopter Textron Canada 206A-1 (OH-58A)H2SWBell Helicopter Textron Canada 206BH2SWBell Helicopter Textron Canada 206B-1H2SWBell Helicopter Textron Canada 206LH2SWBell Helicopter Textron Canada 206L-1H2SWBell Helicopter Textron Canada 206L-3H2SWBell Helicopter Textron Canada 206L-4H2SWMD Helicopters 369H3WEMD Helicopters 369AH3WEMD Helicopters 369HH3WEMD Helicopters 369HSH3WEMD Helicopters 369HEH3WEMD Helicopters 369DH3WEMD Helicopters 369EH3WEMD Helicopters 369FH3WEMD Helicopters 369FFH3WEMD Helicopters 500NH3WEEnstrom Helicopter TH-28H1CEEnstrom Helicopter 480H1CEEnstrom Helicopter 480BH1CEAirbus Helicopters EC120BR0001RDAirbus Helicopters AS350CH9EUAirbus Helicopters AS350DH9EUAirbus Helicopters AS350D1H9EUAirbus Helicopters AS350BH9EUAirbus Helicopters AS350B1H9EUAirbus Helicopters AS350B2H9EUAirbus Helicopters AS350BAH9EUAirbus Helicopters AS350B3H9EUAirbus Helicopters EC 130 B4H9EUAirbus Helicopters EC 130 T2H9EUAirbus Helicopters AS355EH11EUAirbus Helicopters AS355FH11EUAirbus Helicopters AS355F1H11EUAirbus Helicopters AS355F2H11EUAirbus Helicopters AS355NH11EUSiam Hiller Holdings UH-12E4H11

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Bell Helicopter Textron Canada 206 and Bell Helicopter Textron Canada 206A, and 37 more aircraft configurations model, serial range, and configuration?
  2. 02Which load analysis, wiring changes, protection, and limitations 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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