# STC SR01634SE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Aviation Specialties Unlimited Inc., United States - Description: Installation of a Supplemental Lighting System. - Applied: August 31, 2005 - Status date: January 24, 2022 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 21, Part 21, Part 21, Part 21, Part 21, Part 21, Part 21, Part 29 - Data sheets: [TCDS H4SW](https://openairdocs.org/tcds/H4SW), [TCDS H79EU](https://openairdocs.org/tcds/H79EU) - Certificate PDF: https://openairdocs.org/files/sha256/7d/8f/7d8f69b4600ebab091f388a07b37045fa511b00c3a65c7c326ba1cdb9a0c1c42 - Approved model list and other attachments: [AML SR01634SE.pdf](https://openairdocs.org/files/sha256/09/af/09af1d4e56a88536a95049bc1cf2a3dceba19b1f91a0342f8791cdddfb273cd1) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118735717920221130170717.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SR01634SE ## ADs that name it (0) None. ## Approved models (4) - 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 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Leonardo S.p.a. AB412 ([TCDS H79EU](https://openairdocs.org/tcds/H79EU)) ## 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. SR01634SE Aviation Specialties Unlimited, Inc. 4632 West Aeronca Street Boise, ID 83705 * * * * * See attached FAA AML SR01634SE for approved aircraft models and applicable airworthiness regulations. Installation of a Supplemental Lighting System; manufactured and installed in accordance with ASU Master Drawing List (MDL) as listed on the attached AML, or later FAA-approved revisions. Operated in accordance with Rotorcraft Flight Manual Supplement (RFMS) as listed on the attached AML. Maintained in accordance with Instructions for Continued Airworthiness ICA-412004-4, Revision C, dated July 15, 2008, or later FAA-accepted revisions. See Continuation Sheet Page 3 of 3 August 31, 2005 January 13, 2006 April 3, 2008; July 29, 2008; January 24, 2022 Acting Manager, Seattle ACO Branch 3 SR01634SE 3 SR01634SE Date Issued: January 13, 2006 Date Amended: January 13, 2022 This STC applies to the aircraft models listed on the attached AML and only to the specific serial numbers listed on the applicable ASU MDL listed on the attached AML, or later FAA-approved revisions. These rotorcraft employ Night Vision Imaging System lighting, commonly named NVIS, that has been certified to ensure the aircraft is compatible with Night Vision Goggles (NVG). For this reason, interior and exterior modifications that add or change systems that emit or reflect light have the potential to alter or change the NVIS lighting vs. NVG compatibility. Compatibility of this design with subsequent modifications must be determined by the installer. The determination of compatibility with modifications that emit or reflect light must include an engineering compatibility evaluation approved by an aircraft certification authority. A copy of this certificate and the applicable FAA-approved RFMS as listed on the attached AML, or later FAA-approved revisions, must be maintained as part of the permanent records for the modified aircraft. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. ---END--- 3 3 ### AML SR01634SE.pdf **FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR01634SE FOR** INSTALLATION OF SUPPLEMENTAL LIGHTING SYSTEM ISSUE DATE: January 24, 2022 Page 1 of 1 # ROTORCRAFT MAKE **ROTORCRAFT MODEL** **ORIGINAL TC NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **FAA APPROVED** **ROTORCRAFT FLIGHT** **MANUAL SUPPLEMENT** **FAA APPROVED MASTER** DRAWING LIST AML REV DATE Number Revision* Drawing Revision* 1 Bell Textron Inc. 212, 412, 412EP H4SW 14 CFR Part 29 FMS-412004-6 J, dated June 23, 2021 MDL-412004-3 BT, dated December 13, 2021 2 Leonardo S.p.a. AB412 H79EU 14 CF R Part 29 FMS-412004-6 J, dated June 23, 2021 MDL-412004-3 BT, dated December 13, 2021 * Or later FAA Approved Revision FAA Approved: Acting Manager, Seattle ACO Branch AMENDED: REISSUED: ## Every issue (4) - January 24, 2022: Amended, Current. [certificate](https://openairdocs.org/files/sha256/7d/8f/7d8f69b4600ebab091f388a07b37045fa511b00c3a65c7c326ba1cdb9a0c1c42), [AML SR01634SE.pdf](https://openairdocs.org/files/sha256/09/af/09af1d4e56a88536a95049bc1cf2a3dceba19b1f91a0342f8791cdddfb273cd1) - July 29, 2008: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/2a/6b/2a6b5955f92577fa82eb1af51df517a3aad3a993dcc2b27ed5ae108b90b7ce0c) - April 3, 2008: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/1a/eb/1aeb1d91002ce159f2b242f877d9faf8f009a1a0c50ab52050c4e1259273f99b) - January 13, 2006: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/31/be/31bedfde8ad697802c9df6e5e5631037ff8d951e1a080451710aba3a1ad4620d) --- 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.