# STC SA4119WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Airweld Inc., United States
- Description: Installation of a Winters Air Stairs in the forward passenger entry door.
- Applied: December 26, 1979
- Status date: April 28, 2008
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A25](https://openairdocs.org/tcds/4A25)
- Certificate PDF: https://openairdocs.org/files/sha256/58/1f/581fbbfe2a7589bcf061b9a4ccf7af50f8270a174c9a75bc033bf2ecd146a6b2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7B4629DC561EFCC286257448007774E0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4119WE

## ADs that name it (0)

None.

## Approved models (9)

- McDonnell Douglas Corporation DC-8-21 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-61 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-62 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-63 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-63F ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-71 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-72 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-73 ([TCDS 4A25](https://openairdocs.org/tcds/4A25))
- McDonnell Douglas Corporation DC-8-73F ([TCDS 4A25](https://openairdocs.org/tcds/4A25))

## 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 AIRWELD, INCORPORATED 8167 Belvedere Avenue, Suite D Sacramento, California 95826

Part 4b of the Civil Air Regulations.

Original Product Type Certificate Number 4A25 Make : McDonnell Douglas Model : DC-8-21, DC-8-61, DC-8-62, DC-8-63, DC-8-63F, DC-8-71, DC-8-72, DC-8-73, and DC-8-73F Description of Type Design Change: Installation of a Winters airstair in the forward passenger entry door in accordance with FAA sealed Winters Master Drawing List Number 1423-8100, Revision “Y”, dated January 11, 1985, or later FAA approved revision.

Limitations and Conditions: This approval of this change in type design applies to the above noted aircraft only.

This approval should not be extended to other aircraft of these models 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 airworthiness of that aircraft. This determination shoul d include consideration of significant changes in weight distribution such as an increase in the fixed disposable we ight of the fuselage. 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.

Date of application : December 26, 1979

Date of issuance : May 29, 1980

Date reissued : N ovember 2, 1988; July 16, 1997; January 5, 2000; December 3, 2001; April 28, 2008

Date amended : November 25, 1981; August 2, 1985

( Signature) Mansour Rafat Manager, Cabin Safety/Mechanical & Environmental Systems Branch Los Angeles Aircraft Certification Office (Title)

Transfer the ownership of Supplemental Type Certificate Number

to (Name of transferee)

(Address of transferee) (Number and street)

(City, State, and ZIP Code)

from (Name of grantor) (Print or type)

(Address of grantor) (Number and street)

(City, State, and ZIP Code)

Signature of grantor (In ink):

U.S. GPO 1987-763-289

## Every issue (1)

- April 28, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/58/1f/581fbbfe2a7589bcf061b9a4ccf7af50f8270a174c9a75bc033bf2ecd146a6b2)

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