STC SA405EA-D

Supplemental type certificate · American Airlines Inc

Holder
American Airlines Inc · United States
Status
Current · Amended
Status date
March 24, 1970
Applied
October 15, 1966
Product
Aircraft · Large Airplane
Certification basis
Part 21
Data sheet
TCDS4A21

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 5, 2025.

What it approves

Convert all Boeing 707-123B aircraft to the summer passenger cabin configuration (4 first class lounge, 26 first class seats, and 101 tourist class seats) by removing one coat compartment, three first class double seats and installing two additional rows of tourist class seats and LH class divider

What the certificate saysOCR

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

Anitel Bee A Tere Department of Transportation Federal Aviation Administration Supplementel tape Gretfeate Number SA405EA-D This certificate issued to: American Airlines, Inc.

Maintenance & Engineering Center Tulsa, Oklahoma Purt 25 of the Federal Aviation Regulations:

Original Product - Type bertificute Numbir. 4A21 Make: Boeing Model: 707-1233 Description of Type Design Change:

Convert all Boeing 707-123B aircraft to the summer passenger cabin configuration (4 first class lounge, 26 first class seats, and 101 tourist class seats) by removing one coat compartment, three first class double seats and installing two additional rows of tourist class seats and IN class divider per American Airlines Engineering Change Order B. 03633 Revision A dated 3/23/70 and drawings as listed on Page 3 of Engineering Change Order B.03633 Revision A dated 3/23/70.

this approval should not be incorporated in any aircraft of this specific model on which other approved nodifications 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: October 15, 1966 Date Reissued:

> Gate if inmance October 20, 1966 Date Amended: 1/6/67, 10/10/69, 3/24/70 EDERAL By Direction of the Administrator Me A lanni W.P. Hannen (Signature ) 4EMIHI Coordinator DAS 1FA 2 of not exceeding $1200, or imprison cent not exceeding 3 sees, or both This complete may be tronferred in accordance anth FAR 21.47 0110-2(10-48)

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) :

rage 2 ot i

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 2

MakeModelData sheet
The Boeing Company707-100B Long Body4A21
The Boeing Company707-100B Short Body4A21