# STC SA3948SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: ECO H3000CX dated 4/12/88 installs ACARS optional auxiliary terminal for the uplink and downlink of data
- Applied: April 14, 1988
- Status date: June 7, 1988
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/0d/e3/0de3fb4322cd25458f845f40b42fcb49871d0ef7e070338e4f079299881fd0a9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BBF7A12D352EA19085256CC2000C5BEB.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3948SW-D

## ADs that name it (0)

None.

## Approved models (3)

- The Boeing Company 727 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))
- The Boeing Company 727-200 Series ([TCDS A3WE](https://openairdocs.org/tcds/A3WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Anited States of Slarice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA39485W-D This certificate issued to: American Airlines, Inc.

P.O. Box 51009 Engineering Department, MD 208 Part 4b of the CIVII AiT Regulations:

Original Product -Type baortificate Numben:

Make: Boeing Model: Boeing 727-23, -35, -123, -223, Description of Type Design Change: -227, -2A7 ECO H3000CX dated 4/12/88 installs ACARS Optional Auxiliary Terminal for the uplink and downlink of data.

This approval should not be incorporated in any aircraft of this specific model until compatibility of this modification with other previously approved modifications has been determined by the installer.

Date of Application: 4-14-88 Date Reissued:

Date of Issuance: 6/7/88 Date Amended:

FEDERAL AVIATION By Direction of the Administrator

a.P. Toelln (Signature) TMINISTRATOS A. P. Voeller DAS-ISW Coordinator (Title)

47.

TRANSFER ENDORSEMENT Transter 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 ) Extent of Authority (if licensing agreement):

Date of Transfer: - Signature of grantor (In ink): _

## Every issue (1)

- June 7, 1988: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0d/e3/0de3fb4322cd25458f845f40b42fcb49871d0ef7e070338e4f079299881fd0a9)

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