# STC ST74CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: U.S. Technical Consultants Inc.
- Description: Installation of a ground public telephone communication system(Seatfone) or Genstar System.
- Status date: September 29, 2006
- Data sheets: A20WE
- Certificate PDF: https://openairdocs.org/files/sha256/b9/5c/b95cd6cda3a143a1022a353d0d398eb620b948aff54e33394870d42eac5db92b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/641C820E474115F1862572D500609E9D.0001
- Page: https://openairdocs.org/stc/ST74CH

## ADs that name it

None.

## Approved models (1)

- The Boeing Company 747-100 Series (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.

Part 25 of the Federal Aviation Regulations.

See Type Certificate Data Sheet A20WE for complete certification basis.

Installation of a Ground Public Telephone Communication System (Seatfone) or Genstar System in accordance with GTE Airfone STC Documentation Checklist AFD 70-0062-00, Rev. 1, dated January 8, 1996, or later FAA Approved Revision.

1. Compatibility of this design change with previously approved modifications must be determined by the installer.

2. 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.

U.S. Technical Consultants, Inc.

2461 E. Orangethorpe, STE 105 Fullerton, CA 92831 A20WE Make : Boeing Model : 747-100 Series Date of application : March 22, 1993

Date of issuance : June 22, 1993

Date reissued : April 4 , 2002; September 29, 2006

Date amended : March 26, 1996

( Signature) Charles L. Smalley Manager, Systems and Flight Test Branch Chicago Aircraft Certification Office

( Title)

## Every issue (1)

- September 29, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/b9/5c/b95cd6cda3a143a1022a353d0d398eb620b948aff54e33394870d42eac5db92b)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.