# STC SA3923SW-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: Install floor proximity emergency path markings
- Applied: March 4, 1986
- Status date: March 6, 1986
- Product: Aircraft, Large Airplane
- Certification basis: Part 21, Part 25
- Data sheets: [TCDS A1NM](https://openairdocs.org/tcds/A1NM)
- Certificate PDF: https://openairdocs.org/files/sha256/cf/89/cf89b0a65281f0426f7ca58345f3145e37cd2631786dcc6c1fdacde609981cc4
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3F044FEB67FF9A0A85256CC2000C5BA0.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3923SW-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 767-200 Series ([TCDS A1NM](https://openairdocs.org/tcds/A1NM))

## What the certificate says

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

amited Starcs of SlanTice Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number SA 3923 SW-D This certificate issued to: 1e. American Airlines, inc:

Maintenance & Engineering Center Tulsa, OK 74151 Part 25 of the Federal Aviation Hegulations.

Original Product - Type Gertificate Number: AINM Make: Boeing Airplane Co.

Model: 767-223 Description of Type Design Change:

Install floor proximity emergency path markings in compliance with FAR amendments 25-58 and 121-183 per ECO C0444, Rev. C.

This approval should not be incorporated in any aircraft of this specific model on which other approved modifications are incorporated unless it is determined that interrelationship between this change and any of those previously incorporated approved modifications will introduce no adverse affect upon the airworthiness of the aircraft.

Date of Application: 3/4/86 Datomissued:

Date of Issuance: . 3/6/86 Date Amended:

DERAL AVIATION Pay divedion of the Administraton Al Faell (Signature) COMINIST DAS-1SW Coordinator (Title)

The FAA will reissuc the certificate in the name of the transferee and forward it to him.

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

Signature of grantor (In ink): _

## Every issue (1)

- March 6, 1986: Issued, Current. [certificate](https://openairdocs.org/files/sha256/cf/89/cf89b0a65281f0426f7ca58345f3145e37cd2631786dcc6c1fdacde609981cc4)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.