# STC SH3189SO - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Bell Helicopter Textron, United States - Description: Installation of an external hoist in accordance with Aeronautical Accessories, Inc. Report No. AA-91064, no revision, dated January 3, 1992 or later Federal Aviation Administration (FAA) approved revisions. - Applied: July 10, 1991 - Status date: April 15, 2011 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H79EU](https://openairdocs.org/tcds/H79EU), [TCDS H4SW](https://openairdocs.org/tcds/H4SW) - Certificate PDF: https://openairdocs.org/files/sha256/59/38/593884503d9839701a282fc6419ff9c3c66654436b19992eeda3cd625f5e1e52 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F5B227CFAB1A61BE862578B80042D32A.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SH3189SO ## ADs that name it (0) None. ## Approved models (6) - Agusta S.p.A. AB412 ([TCDS H79EU](https://openairdocs.org/tcds/H79EU)) - Agusta S.p.A. AB412 EP ([TCDS H79EU](https://openairdocs.org/tcds/H79EU)) - Bell Helicopter Textron 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron 412CF ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) ## What the certificate says Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record. Number SH3189SO This certificate issued to Part 29 of the Federal Aviation Regulations. Installation of an external hoist in accordance with Aeronautical Accessories, Inc. Report No. AA-91064, no revision, dated January 3, 1992 or later Federal Aviation Administration (FAA) approved revisions. Hoist operation in 4-axis hover coupled mode is approved for the Bell Model 412EP; hoist operation in 4-axis hover coupled mode is not approved for Bell Models 212, 412, 412CF, and Agusta Models AB412, and AB412EP. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission. Bell Helicopter Textron, Inc. 441 Industrial Park Road Piney Flats, TN 37686 H4SW, H79EU Make : Bell Helicopter Textron, Agusta Model : 212, 412, 412CF, 412EP, AB412, and AB412EP Date of application : July 10, 1991 Date of issuance : March 23, 1992 Date reissued : April 15, 2011 Date amended : September 19, 2002 ( Signature) James A. Richmond, Acting Manager Rotorcraft Certification Office, Southwest Region ( Title) FAA Form 8110-2-1(10-69) Page 2 of 3 FAA Form 8110-2-1(10-69) Page 3 of 3 Number SH3189SO Date of Issuance: March 23, 1992 Date Amended: September 17, 2002 Date of Reissuance: April 15, 2011 The following FAA Approved Rotorcraft Flight Manual Supplements or later FAA approved revisions, are a required part of this STC for Aeronautical Accessories, Inc. External Hoist Kit Part No. 412-150; Document No. AA-91067, no revisions, dated March 23, 1992, for the Bell Model 212. Document No. AA-92013, no revisions, dated March 23, 1992, for Bell Models 412 and 412EP. Document No. AA-93051, no revisions, dated March 7, 1995, for the Bell Model 412CF. Document No. AA-92013, Revision I, dated July 12, 1999, for Agusta Models AB412 and AB412EP. The following FAA Approved Rotorcraft Flight Manual Supplements or later FAA approved revisions, are a required part of this STC for Aeronautical Accessories, Inc. External Hoist Kit Part No. 412-140; Document No. AA-95033, no revisions, dated October 31, 1995, for the Bell Model 212. Document No. AA-95034, Revision E, dated September 19, 2002, for the Bell Model 412EP. Document No. AA-95034, Revision C, dated July 12, 1999, for Agusta Models AB412, AB412EP, AB412, and AB412EP. ## Every issue (1) - April 15, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/59/38/593884503d9839701a282fc6419ff9c3c66654436b19992eeda3cd625f5e1e52) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.