STC SA7942SW

Supplemental type certificate · Dee Howard Co

Holder
Dee Howard Co · United States
Status
Current · Amended
Status date
November 20, 1996
Applied
February 2, 1990
Product
Aircraft · Large Airplane
Certification basis
Part 21
Data sheet
TCDSA3WE

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

What it approves

Installation of Collins dual electronic flight instrument system (EFIS) 86U-12, Smiths dual air data system, Sundstrand ground proximity warning system (GPWS) Mark VII, Marathon 22 A-h Nicad battery, and other flight instrument systems

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.

•UCmleh ^tates ®f .America Pepartmeni of transportation - ^eoeral J^&talton JVhminisiralton (Her tt fixate SA7942SW The Dee Howard Co.

P.O. Box 469001 San Antonio, TX 78246 SA0461AC-T RMR-150 4B Civil See STC Certification Basis for additional requirements.

A3 WE Boeing 727 -1A7C, 108C; 727-172C; 727-173C ; 727-180C;

727-185C ; 727-21C ; 727-22C ; 727-25C ; 727-27C;

727-30C; 727-31C ; 727-51C ; 727-62C Installation of Collins Dual Electronic Flight Instrument System (EFIS) 86U-12, Smiths Dual Air Data System, Sundstrand Ground Proximity Warning System (GPWS) Mark VII, Marathon 22 A-h Nicad Battery, and other flight instrument systems in accordance with Dee Howard Drawing List 000 "UPS 727 Cockpit Modernization Modification" dated October 8, 1996 or later FAA approved revision.

FAA Approved Airplane Flight Manual (AFM) Supplement dated November 30, 1992, or later FAA approved revision is required. Compatibility of this modification with previously installed equipment must be determined by installer.

.- February 02, 1990 December 06, 1990 . 11/30/92; 11/20/96 (Signature) Michele M. Owsley Airplane Certification Office Southwest (Title)

Stale, and ^IP rode] Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

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 Company727-100C SeriesA3WE
The Boeing Company727-200 SeriesA3WE
The Boeing Company727C SeriesA3WE