# STC SA4210WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: United Airlines Inc, United States
- Description: Installation of a Safe Flight Instrument Corporation Speed Command Attitude and Thrust (SCAT) Computer and a Windshear Monitor Computer in accordance with United Air Lines Change Order Authorization (COA) No. T-3306 dated May 1, 1980, plus EVAs No. 48-1590 and 48-1591.  United Air Lines FAA Approved Airplane Flight Manual Supplements (two) dated September 18, 1980, or later FAA approved revisions to Boeing Airplane Flight Manual Document No. D6-13703 are required as a part of this installation.
- Applied: February 19, 1980
- Status date: November 30, 2011
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE)
- Certificate PDF: https://openairdocs.org/files/sha256/a1/54/a154644a291b0e27a7e28b5acb1ffc22e3aa66b66ca26db4ea27013ccec5195e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A200ED490FFA9C79862579920052BEDD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4210WE

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 747-100 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))

## 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.

600 Jefferson Street Houston, Texas 77002 Part 25 of the Federal Aviation Regulations

A20WE

Boeing

747-122, S/N 19928 Description of Type Design Change : Installation of a Safe Flight Instrument Corporation Speed Command Attitude and Thrust (SCAT) Computer a nd a Windshear Monitor Computer in accordance with United Air Lines Change Order Authorizati on (COA) No. T-3306 dated May 1, 1980, plus EVAs No. 48-1590 and 48-1591. United Air Lines FAA Approve d Airplane Flight Manual Supplements (two) dated September 18, 1980, or later FAA approved revisions to Boeing Airplane Flight Manual Document No. D6-13703 are required as a part of this installation.

Limitations and Conditions: The approval of this change in type design applies to Boeing Model 747-122, S/N 19928 airplane only. This approva l becomes void after September 15, 1981, in accordance with Title 14 CFR part 21.51.

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 19, 1980

Date of issuance: September 19, 1980

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 (2)

- November 30, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a1/54/a154644a291b0e27a7e28b5acb1ffc22e3aa66b66ca26db4ea27013ccec5195e)
- September 19, 1980: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/39/62/3962a3bbb85f474b7df1d81344f16b843bb0691bc133be587a5de5737f98eab0)

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