# STC SA4571NM

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ancra International LLC, United States
- Description: Installation of cargo system. (747-249F)
- Applied: September 12, 1988
- Status date: March 29, 2012
- 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/sha256/2d/25/2d259322885d151f1eae1ae744a567d78e07c455b70d70814891b81ac5f62dbd
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EEE0371C643BB989862579E30074BBE3.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4571NM

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 747-300 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE))
- The Boeing Company 747-400 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.

Number SA4571NM

This Certificate issued to

Part 25 of the Federal Aviation Regulations.

Description of Type Design Change: Installation of Cargo System in accordance with FAA approved Ancra Corporation Controlled Drawing List DL 80390, Revision “E”, dated January 22, 1991, or later FAA approved revision.

Limitations and Conditions: This installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this change and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the 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.

Ancra International LLC 875 W. 8th Street Azusa, California 91702 A20WE

Boeing

747-300, -400 Series Original Product Type Certificate Number :

Date of application : September 12, 1988

Date of issuance : September 25, 1989

Date reissued : January 30, 1992; October 8, 1996; March 29, 2012

Date amended : January 7, 1992

( Signature) Supervisor, Technical & Administrative Support Staff Los Angeles Aircraft Certification Office

(Title)

Number (STC No.)

## Every issue (1)

- March 29, 2012: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/2d/25/2d259322885d151f1eae1ae744a567d78e07c455b70d70814891b81ac5f62dbd)

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