STC SH1640SO

FAA DRS lists SH1640SO as Current · Reissued, held by Aviall, for Bell Helicopter Textron 412 and Bell Helicopter Textron 212. Recorded change: Installation of Utah Research & Develop. Co. Model 126 BC-101 airborne battery charger system. Snapshot dated June 30, 2026.

FAA-listed holder

Aviall

Aircraft configurations

FAA revision date

October 31, 2002

FAA status

Current · Reissued

Recorded modification

What the FAA record covers

SH1640SO 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 and Bell Helicopter Textron 212. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Bell Helicopter Textron 412H4SW Bell Helicopter Textron 212H4SW

Buyer checks

Confirm before sourcing

SA01436ATElectrical systemsRevised Jun 24, 2011

Installation of alternator replacement of belt-driven generator in accordance with National AirParts Document Number NAPI-3533, Initial Release, dated 12/29/96, or later FAA approved revisions.

FAA holder: National Air Parts Inc

View record

SR02048ATElectrical systemsRevised Jun 6, 2011

Installation of Auxiliary Battery Kit in a Bell 206L-4 in accordance with Aeronautical Accessories Drawing List, Report No. AA-99115, dated 11-19-99 or later FAA approved revision.

FAA holder: Bell Helicopter Textron Inc.

View record

SR01631LAElectrical systemsRevised May 24, 2011

Installation of starter/generator.

FAA holder: Airworthy Products

View record

SR02761NYElectrical systemsRevised Apr 15, 2011

The installation of the aircraft battery in the aft baggage compartment must be done in accordance with Lawson Aerospace LLC Installation Drawing List No. AA-09056, Rev. D, dated January 14, 2010.

FAA holder: Bell Helicopter Textron Inc.

View record

What the FAA record covers

Aircraft named in FAA DRS

Confirm before sourcing

Related electrical systems STCs

Installation of alternator replacement of belt-driven generator in accordance with National AirParts Document Number NAPI-3533, Initial Release, dated 12/29/96, or later FAA approved revisions.

Installation of Auxiliary Battery Kit in a Bell 206L-4 in accordance with Aeronautical Accessories Drawing List, Report No. AA-99115, dated 11-19-99 or later FAA approved revision.

Installation of starter/generator.

The installation of the aircraft battery in the aft baggage compartment must be done in accordance with Lawson Aerospace LLC Installation Drawing List No. AA-09056, Rev. D, dated January 14, 2010.