# STC SA562EA-D

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: American Airlines Inc, United States
- Description: Installation of a PB-75 dual flight guidance system and Lear Siegler Attitude Director Indicators
- Applied: July 16, 1969
- Status date: December 27, 1971
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 4A26](https://openairdocs.org/tcds/4A26)
- Certificate PDF: https://openairdocs.org/files/sha256/93/fe/93fe4a663fcb4369bd954f178e14374df1d5c8e00e5d11cbc6170acd56de4d78
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5A5FFB2ECED3925E86257EE300614270.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA562EA-D

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 707-300B Series ([TCDS 4A26](https://openairdocs.org/tcds/4A26))

## 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: SA5628A-D This certificate issued to: American Airlines, Inc.

Maintenance & Engineering Center Tulsa, Oklahoma 74151 Part 4b of the CIV11 Air Regulations.

Original Product TypeCertificate Number: 4A26 Make: Boeing Model: 707-3230 Description of Type Design Change: System and Lear Siegler Attitude Director Indicators. Installation of a PB-75 Dual Flight Guidance This installation requires removal of the PB-20 Amplifier-Computer, Mach Trim Coupler, ard existing Horizon Director Indicators.

(Continued on attached sheet) Limitations and Conditions: This approval should not be extended to other specific airplanes of these models on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any of other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane. This installation requires concurrent or prior installation of an Air Data System per ARINC 576 (ref: SIC #SA557EA-D, dated 11/13/70).

Date of Application: 7/16/69 Date Reissued:

Date of Issuance: . 11/14/69 Date Amended: 3/31/70; 11/13/70; 12/27/71

EDERA AVIAT K. B. Olsen (Signature ) DAS- 15/ Coordinotor (Title)

47.

**FAA FOR 8110-2 (10-68)**

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA562EA-D Description of Type Design Change: (Continued):

The installations, removals, and rework tasks required to produce the revised aircraft configuration are accomplished in accordance with American Airlines Engineering Change B.03/200. The operation and limitations for this configuration are described in the FAA approved Airplane Flight Manual supplementary revision AAL-5, dated 12/27/71 to document D6-1588.15.

**FAA FORM 8110-2-1 (10-69) PAGE 2 OF 2 PAGES**

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, ard ZIP code) Exent of Authority (if licensing agreement) :

Signature of grantor (In ink) :

## Every issue (1)

- December 27, 1971: Amended, Current. [certificate](https://openairdocs.org/files/sha256/93/fe/93fe4a663fcb4369bd954f178e14374df1d5c8e00e5d11cbc6170acd56de4d78)

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