# STC SA1396WE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: United Airlines Inc, United States - Description: Installation of McMillan Radome P/N 2406 as a replacement for Boeing Radome P/N 65-2040 - Applied: February 1, 1967 - Status date: November 30, 2011 - Product: Aircraft, Large Multi-Engine - Certification basis: Part 21 - Data sheets: [TCDS 4A28](https://openairdocs.org/tcds/4A28), [TCDS A3WE](https://openairdocs.org/tcds/A3WE) - Certificate PDF: https://openairdocs.org/files/sha256/02/f3/02f30872eb5d50b53af1ddbc99ce51d90b5c55dfc891e65762e994ef0c993a4c - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0B42C60D76913F3286257997006CB40E.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA1396WE ## ADs that name it (0) None. ## Approved models (2) - The Boeing Company 720 Series ([TCDS 4A28](https://openairdocs.org/tcds/4A28)) - The Boeing Company 727 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE)) ## 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. This Certificate issued to United Air Lines, Inc. 600 Jefferson Street Houston, Texas 77002 Part 4b of the Civil Air Regulations. 4A28 and A3WE Boeing 720-022 and 727-22 Description of Type Design Change : Installation of McMillan Radome P/N 2406 as a replacement for Boeing Radome P/N 65-2040 in accordance to Approved United Air Lines Engineering Release No. 3 dated February 1, 1967 and Approved United Air Lines Change Order Authorization T-2057. Limitations and Conditions: The approval of this change in the type design applies basically to Boeing Models 720 and 727 aircraft. This approval should not extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airwor thiness of that aircraft. This approval is for the interchangeable use of the McMillan P/N 2406 Radom e with the existing Boeing P/N 65-2040 Radome. If the holder agrees to permit another person to use this cer tificate to alter the product, the holder shall give the other person written evidence of this permission. This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration. Date of application: February 1, 1967 Date of issuance: April 25, 1967 Date reissued: November 30, 2011 ( Signature) Haifa Haj-Eid Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office ( Title) NOTE: **DO NOT DELETE THIS PAGE.** **DO NOT ADD ANY DATA TO THIS PAGE.** **THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.** ## Every issue (1) - November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/02/f3/02f30872eb5d50b53af1ddbc99ce51d90b5c55dfc891e65762e994ef0c993a4c) --- 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.