# STC SA904SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Associated Air Center, Inc. - c/o CT Corporation System, United States
- Description: Installation of Mach Airspeed Warning Switch
- Applied: November 29, 1967
- Status date: January 19, 2018
- Product: Aircraft, Large Airplane
- Data sheets: [TCDS 2A15](https://openairdocs.org/tcds/2A15)
- Certificate PDF: https://openairdocs.org/files/sha256/ae/f1/aef1985d472c3d4ff56c95d4c30e43edccea93698f36d4ecb078b12b2a678d97
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107426684420230424171054.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA904SW

## ADs that name it (0)

None.

## Approved models (4)

- Lockheed Martin Corporation 1329-23A ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Martin Corporation 1329-23D ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Martin Corporation 1329-23E ([TCDS 2A15](https://openairdocs.org/tcds/2A15))
- Lockheed Martin Corporation 1329-25 ([TCDS 2A15](https://openairdocs.org/tcds/2A15))

## 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.

FAA Form 8110-2 (8/13) Page 1

Part of the Federal A viation Regulations.

Original Product – Type Certificate Number: MDNH:

MRGHO:

Signature

Title

SA904SW Associated Air Center, Inc. - c/o CT Corporation System 1999 Bryan Street, Suite 900 Dallas, TX 75201 4b 2A15 Lockheed 1329 Installation of Mach Airspeed Warning Switch in accordance with Associated Radio Company Drawing No. 18237, Mach Airspeed Warning Switch Relocate in Lockheed Jetstar, dated January 28, 1966.

Approval of relocation only.

Certification Basis of this STC refers to Part 4b of the Civil Air Regulations (CAR 4b).

11/29/1967 4/9/1968 1/19/2018 Jose Mora-Vargas ODA Administrator ODA-710437-SW

FAA Form 8110-2 (8/13) Page 2

To (Name and address of transferee) From (Name and address of grantor) Extent of Authority (if licensing agreement):

SA904SW

## Every issue (1)

- January 19, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ae/f1/aef1985d472c3d4ff56c95d4c30e43edccea93698f36d4ecb078b12b2a678d97)

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