STC SA857NW

Supplemental type certificate · Honeywell International Inc

Holder
Honeywell International Inc · United States
Status
Current · Reissued
Status date
January 4, 2022
Applied
August 13, 1979
Product
Aircraft · Large Airplane
Certification basis
Part 21, Part 21, Part 21, Part 21, Part 21, Part 21, Part 21

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of Sundstrand performance advisory display(SPAD) system.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SA857NW Honeywell International Inc.

21111 N 19th Ave Phoenix, Arizona 85027 * * * * * See attached Master Eligibility List Number SA857NW for list of approved airplane models and regulations.

Installation of Sundstrand Performance Advisory Display (SPAD) System in accordance with the applicable data listed on the attached FAA Sealed Master Eligibility List Number SA857NW.

The approval of this change in type design applies basically to the aircraft models listed on FAA Approved Master Eligibility List Number SA857NW and should not be extended to other specific models of these airplanes on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that airplane. The installer must determine whether this design change is compatible with previously approved modifications.

If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

August 13, 1979 January 4, 2022 November 14, 1979 For Acting Manager, Seattle ACO Branch 2

FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number:

SA857NW 2

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 · 3

MakeModelData sheet
The Boeing Company727-100 SeriesA3WE
The Boeing Company727-200 SeriesA3WE
The Boeing Company747-100 SeriesA20WE

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
January 4, 2022Reissued, currentCertificate
January 4, 2022Reissued, earlier issueCertificateMEL_SA857NW