# STC SA948NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aviation Technical Services, United States
- Description: Installation of zero passenger, zero cargo configuration
- Applied: July 17, 1979
- Status date: October 24, 2018
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 4A21](https://openairdocs.org/tcds/4A21)
- Certificate PDF: https://openairdocs.org/files/sha256/ed/28/ed2836c86c8386eb45d246e773f5e1f10739d360da72d452ceaff3b15615f285
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B6B42E6C71E3C3EB86258335004B4354.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA948NW

## ADs that name it (0)

None.

## Approved models (2)

- The Boeing Company 707-100B Long Body ([TCDS 4A21](https://openairdocs.org/tcds/4A21))
- The Boeing Company 707-100B Short Body ([TCDS 4A21](https://openairdocs.org/tcds/4A21))

## 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 SA948NW

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

Part 4b of the Civil Air Regulations. (See Type Certificate Data Sheet 4A21 for complete certification basis)

Original ProductType Certificate Number: 4A21 Make: Boeing Model: 707-138B, Serial No. 17696

Description of the Type Design Change: Installation of zero passenger, zero cargo configuration in accordance with the FAA sealed Tramco Drawing No. 80-009 dated May 6, 1980.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Boeing Model 707-138B, Serial No. 17696 only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

Date of application: July 17, 1979 Date reissued: October 24, 2018 Date of issuance: June 5, 1980 Date amended:

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

(Signature)

Manager, Seattle ACO Branch (Title)

## Every issue (2)

- October 24, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ed/28/ed2836c86c8386eb45d246e773f5e1f10739d360da72d452ceaff3b15615f285)
- June 5, 1980: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/a6/64/a6649e41cc1c10fc6a03808713ced694eb3375d6818c1f57838d5e9ed45b5339)

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