STC ST9438SC-D

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number ST 9438 SC-D This certificate issued to: American Airlines, Inc. P. O. Box 582809 Engineering Dept., MD 176 Tulsa, Oklahoma 74158-2809 Part 25 of the ederal A viation Regulations.

Original Product -Type bertificato Number: A2NM Маке: Boeing Model: 757-223 Description of Type Design Change:

Rearrangement of the interior seat layout in accordance with American Airlines Engineering Change Order (ECO) F0676XX dated 1/15/00 and Prototype Revision Form 7721-6 dated 3/17/00 and ECO F0700XX dated 1/15/00 and Prototype Revision Form 7721-6 dated 3/17/00 and ECO F0703XX dated 1/15/00 and Prototype Revision Form 7721-6 dated 3/17/00 and ECO F0704XX dated 1/15/00 and Prototype Revision Form 7721-6 dated 3/17/00 or later DASISW 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.

Date of Application: 12/28/99 Date Reissued:

Date of Issuance: 3/17/00 Date Amended:

FEDERAL AVIATIO C. E. Williams Signature ) OMINISTA DASISW Coordinator (Title)

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) fron (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):