# STC ST9416SC-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: Install VHF transceivers and communication radio panels with 8.33 KHz channel spacing per ECO ZO930XX.
- Applied: March 11, 1998
- Status date: April 27, 1998
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A22WE](https://openairdocs.org/tcds/A22WE)
- Certificate PDF: https://openairdocs.org/files/sha256/7b/7b/7b7bf19c4e172d6c00bedadb786f0b49da47cb440b85de9aeb24fce347d37d70
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A19A0C854F57432285256CC3000374D6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/ST9416SC-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company MD-11 ([TCDS A22WE](https://openairdocs.org/tcds/A22WE))

## What the certificate says

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

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number ST 9416 SC-D This certificate issued to: P. O. Box 582809 American Airlines, Inc.

MD 176 Tulsa, Oklahoma 74158-2809 Certifies that the change in the type design for the following product with the limitations and conditions therefor as specified hereon meets the ainvorthiness requivements of Pant " of the Federal Aviation Regulations.

A22WE Original Product - Type bertificate Numben: Make: McDonnell Douglas Model: MD-11 Depositore anDesign hangommunication Radio Panels with 8.33 KHz channel spacing per ECO Z0930XX dated 4/1/98 and Prototype Revision Form 7721-6 dated 4/24/98 or later DAS1SW approved revisions of each.

This approval should not be incorporated in any aircraft of this specific model until compatibility.

of this modification with previously approved modifications has been determined by the installer.

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.

3/11/98 Date of Application: Date Reissued:

Date of Issuance: 4/27/98 Date Amended:

FEDERAL AVIATION By Direction of the Administrator F. J. Grewe (Signature) PANNIS RATE DASISW Coordinator (Title)

47.

**FAA FORK 8110-2 (10-68)**

TRANSFER ENDORSEMENT Transfer 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 & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- April 27, 1998: Issued, Current. [certificate](https://openairdocs.org/files/sha256/7b/7b/7b7bf19c4e172d6c00bedadb786f0b49da47cb440b85de9aeb24fce347d37d70)

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