# STC SA418EA-D

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: American Airlines Inc, United States
- Description: Change interior arrangement of passenger compartment from the existing configuration of tourist and first class to eighty passenger six lounge configuration
- Applied: April 9, 1969
- Status date: May 9, 1969
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 4A22](https://openairdocs.org/tcds/4A22)
- Certificate PDF: https://openairdocs.org/files/sha256/2e/90/2e9062db8e2d04d8e789ad7ac95f97ade99df3ca66a821ed04dc5733f996fa7c
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/557C006A458573BF86257DFC0053B786.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA418EA-D

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Martin Corporation 188A ([TCDS 4A22](https://openairdocs.org/tcds/4A22))

## 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: SA418EA-D This certificate issued to: American Airlines, Inc.

Maintenance & Engineering Center Tulsa, Oklahoma 74151 Part 4b of the Regulations.

Original Product - Type bertificate Numben: 4A22 Make: Lockheed Model: 188A-08 Description of Type Design Change:

Change the interior arrangement of the passenger compartment from the existing configuration of tourist and first class to eighty passenger six lounge configuration in accordance with Engineering Change Order E.00952 dated 3/3/69 and the drawings as listed on Page 3 of the Engineering Change Order.

approval should not be incorporated in any aircraft of this specific model on which other approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those previously incorporated approved modifications will not introduce any adverse effect upon the airworthiness of the aircraft.

Date of Application: 4/9/69 Date Reissued:

Date of Issuance: 5/9/69 Date Amended:

AVIAT By Direction of the Administrator P.C. Johnson efhuan (Signäture) HOMINISTA Coordinator - DAS 1EA (Title)

47.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Z1P code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State, and ZIP code) Exent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- May 9, 1969: Issued, Current. [certificate](https://openairdocs.org/files/sha256/2e/90/2e9062db8e2d04d8e789ad7ac95f97ade99df3ca66a821ed04dc5733f996fa7c)

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