# STC SA2052CE-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Honeywell International Inc, United States
- Description: Installation of King KFC 325 Automatic Flight Control System with option to use 4-inch mechanical instruments or King EFS 10 Electronic Flight System when coupled to the King RDS 82 Weather Radar and King Golf Crown III radios inlcuding the King INS 660 Multi-Sensor flight Management System.
- Applied: August 19, 1985
- Status date: March 21, 2020
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A23SO](https://openairdocs.org/tcds/A23SO)
- Certificate PDF: https://openairdocs.org/files/sha256/19/a5/19a5ec7f7cdac2d91d9af833a75cae3fe7c7e6d57063aee19d619fbb7a5ae4eb
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D8413B69A7B1CAFD8625861E00742C67.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2052CE-D

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-42-720 ([TCDS A23SO](https://openairdocs.org/tcds/A23SO))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Page 1 of 3 FAA Form 8110-2 (5/14)

Number: SA2052CE-D This certificate issued to: Honeywell International Inc.

21111N 19th Ave Phoenix, Arizona 85027 Part 23of the Federal Aviation Regulations.

Original Product – Type Certificate Number: Make: Piper Model:

A23SO PA-42-720

Installation of King KFC325 Automatic Flight Control System with option to use 4 inch mechanical instruments or King EFS10 Electronic Flight Instrument System when coupled to the King RDS82 Weather Radar and King Gold Crown III Radiosincluding the King KNS660 Multi-Sensor Flight Management System.

(See Continuation Sheet for Required Data)

KNS660 Pilot’s Guide No. 006-8407-00or later revision is required. This approval should not be extended to other specific airplanesof this model on which other previously approved modificationsare incorporated, unlessit is determined that the interrelationship between this change any any of those other previously approved modifications will introduce no adverse effect upon the airworthinessof that airplane.

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: 8-19-85 Date Reissued: 2-28-95, 2-28-00, 3-21-20

Date of Issuance: 12-20-85 Date Amended:

3-26-86, 8-19-86

Signature

Title Richard B. Sleigh ODA Administrator, ODA-602216-NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Page 2 of 3 FAA Form 8110-2 (5/14)

To (Name and address of transferee)

From (Name and address of grantor)

FAA Form 8110-2 (5/14) Page 3 of 3

(Continuation Sheet) Number: SA2052CE-D

REQUIRED DATA:

KFC325 Automatic Flight Control System using 4 inch Mechanical Instruments:

1. Master Drawing List 155-9343-01, Rev. 1, dated 8-8-86.

2. FAA Approved Flight Manual Supplements

a. 006-0447-00, Rev. 2, dated 8-19-86, for King KFC325 Automatic Flight Control System.

b. 006-0447-02, Rev. 1, dated 3-26-86, for King KNS660 Multi-Sensor Flight Management System.

c. 006-0447-03dated 8-19-86, for KAS297CAltitude Preselect and Vertical Speed Indicator.

EFS325 Automatic Flight Control System using Bendix EFS-10 Electronic Flight Instrument System:

1. Master Drawing List 155-9343-00, Rev. 2, dated 3-7-86.

2. FAA Approved Flight Manual Supplements

a. 006-0447-00, Rev. 1, dated 3-26-86, for King KFC325 Automatic Flight Control System.

b. 006-0447-01, Rev. 1, dated 3-26-86, for Bendix EFS10 Electronic Flight Instrument System.

c. 006-0447-02, Rev. 1, dated 3-26-86, for King KNS660 Multi-Sensor Flight Management System.

d. 006-0447-03dated 8-9-86, for KAS297CAltitude Preselect and Vertical Speed Indicator.

Later FAA approved revisionsto above listed data are incorporated without further revisionsto the Supplemental Type Certificate.

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## Every issue (2)

- March 21, 2020: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/19/a5/19a5ec7f7cdac2d91d9af833a75cae3fe7c7e6d57063aee19d619fbb7a5ae4eb)
- February 28, 2000: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/58/d1/58d1759e0c268369e6e9303721312bf51ab321432c24d17a010613c2ac44139d)

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