# STC SH400NW - Type: Supplemental type certificate - Status: Current, Reissued - Holder: WSH, LLC, United States - Description: Installation of left hand bubble door with or without duplicate engine instruments - Applied: August 11, 1975 - Status date: October 21, 2022 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW), [TCDS H6SW](https://openairdocs.org/tcds/H6SW) - Certificate PDF: https://openairdocs.org/files/sha256/4f/66/4f66b6a72ebb16ee46ad1def5c9f0a0e54643f131e1badd69bbabcdab4689687 - Approved model list and other attachments: [AML SH400NW.pdf](https://openairdocs.org/files/sha256/3d/c5/3dc5b831fe13e73b5b13f9acdd081bd895e009517e7688065d116db3922d1be0) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175997650320221207152801.0001 - DRS record last changed: August 31, 2026 - Page: https://openairdocs.org/stc/SH400NW ## ADs that name it (0) None. ## Approved models (5) - Bell Textron Inc. 204B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Erickson 214 Holdings LLC 214B ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) - Erickson 214 Holdings LLC 214B-1 ([TCDS H6SW](https://openairdocs.org/tcds/H6SW)) ## 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. FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: **SH400NW WSH, LLC.** 3255 S. Bodenburg LP. Palmer, Alaska 99645 * * Regulations * * * See attached Approved Model List SH400NW for list of approved helicopter models and applicable regulations. Installation of left hand bubble door with or without duplicate engine insruments in accordance with the applicable data listed on the attached FAA Approved Model List SH400NW. Approval of this change in type design applies basically to the helicopter models listed on the FAA Approved Model List SH400NW. This approval should not be extended to other aircraft of this model on which other previously approved modificdations are incorporated unless it is determined that the interrelationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft A copy of this Certificate shall be maintined as part of the permant records for the modified aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. August 11, 1975 May 31, 2022; October 21, 2022 January 20, 1977 For Acting Manager, Seattle ACO Branch 2 FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SH400NW 2 ### AML SH400NW.pdf **FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SH400NW FOR** LEFT HAND BUBBLE DOOR WITH OR WITHOUT DUPLICATE INSTRUMENTS ISSUE DATE: January 20, 1977 Page 1 of 1 **ITEM 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 212 H4SW FAR 29 N/A MDL-35 B 5/13/77 2** Erickson 214B 214B-1 H6SW FAR 29 N/A MDL-37 February 10, 1977 5/13/77 3*** Bell Erickson Bell 212 214B 214-1 204B 205A-1 H4SW H6SW **H1SW FAR 29** **FAR 29** CAR 7 N/A MDL-36 February 2, 1977 5/13/77 * Or later FAA Approved Revision ** H714NW-S Door and Instruments *** H714NW-S Door only FAA Approved: for Acting Manager, Seattle ACO Branch AMENDED: May 13, 1977 REISSUED: May 31, 2022; October 21, 2022 ## Every issue (3) - October 21, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4f/66/4f66b6a72ebb16ee46ad1def5c9f0a0e54643f131e1badd69bbabcdab4689687), [AML SH400NW.pdf](https://openairdocs.org/files/sha256/3d/c5/3dc5b831fe13e73b5b13f9acdd081bd895e009517e7688065d116db3922d1be0) - May 31, 2022: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f5/ed/f5ed9851fd80788cffffdf7226e59e0a5a1463e4f45f4d26d5bf8ce5771cd6a1), [AML SH400NW.pdf](https://openairdocs.org/files/sha256/62/75/6275b94a229619e2c23251ac5fc7d99d478d2c29c52c0a1083b774b41be4b70b) - January 20, 1977: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/a0/c2/a0c2e7049e6ac0069b159f7c6a8b82cd156c2ae6727c4cf340ed36638e303b7e), [SH400NW_AML.pdf](https://openairdocs.org/files/sha256/7d/f5/7df5f9943b914bbe83eb7028bef2f273eab649947552eb607f2aa28e529d0a12) --- 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.