# STC SA208NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Technical Services, United States
- Description: Installation of Fairchild Stan(R) Weight and balance system.
- Applied: August 19, 1975
- Status date: October 24, 2018
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26)
- Certificate PDF: https://openairdocs.org/files/sha256/85/1e/851edeea671d7865553b964aad592985c1a5a645e28512e8080e105fe0f93f28
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DFF98D90B53AA2EE86258335004B410B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA208NW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 707-300 ([TCDS 4A26](https://openairdocs.org/tcds/4A26))

## 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.

Un ited S tates of Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate

Number SA208NW

This certificate, issued to Aviation Technical Services 3121 109th Street SW Everett, WA 98204-3500

Part 4b of the Civil Air Regulations.

Original ProductType Certificate Number: 4A26 Make: Boeing Model: 707-300B, -300C

Description of the Type Design Change: Installation of Fairchild Stan ® Internal Weight and Balance System in accordance with the FAA sealed Air Repair, Incorporated Drawing List No. 968, and Airplane Flight Manual Supplement Air Repair Document Number 031-SR68-FM dated October 21, 1975.

Limitations and Conditions: The approval of this change in type design applies basically to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined 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. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of application: August 19, 1975 Date reissued: May 13, 1977; October 24, 2018 Date of issuance: October 21, 1975 Date amended: August 18, 1976

FAA FORM 8110-2 (5/14) PAGE 1 OF 2 PAGES By direction of the Administrator

(Signature)

Manager, Seattle ACO Branch (Title)

## Every issue (1)

- October 24, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/85/1e/851edeea671d7865553b964aad592985c1a5a645e28512e8080e105fe0f93f28)

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