# STC SA7942SW

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Dee Howard Co
- Description: 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
- Status date: November 20, 1996
- Data sheets: A3WE, A3WE, A3WE
- Certificate PDF: https://openairdocs.org/files/sha256/b6/e5/b6e52edf5fda1bfb947f63ac2fd649b1dd3dfbbd51b9c1bf366cf038288c1697
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1CD44709D9F133EB85256CC20058E4E9.0001
- Page: https://openairdocs.org/stc/SA7942SW

## ADs that name it

None.

## Approved models (3)

- The Boeing Company 727-100C Series (TCDS A3WE)
- The Boeing Company 727-200 Series (TCDS A3WE)
- The Boeing Company 727C Series (TCDS A3WE)

## 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.

•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):

## Every issue (1)

- November 20, 1996: Amended, Current. [certificate](https://openairdocs.org/files/sha256/b6/e5/b6e52edf5fda1bfb947f63ac2fd649b1dd3dfbbd51b9c1bf366cf038288c1697)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.