# STC SA7846SW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Trimble Navigation, United States
- Description: Installation of dual Tracor TA-7900 Omega/DME-DME navigation systems.
- Applied: March 23, 1990
- Status date: July 19, 1990
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A6WE](https://openairdocs.org/tcds/A6WE)
- Certificate PDF: https://openairdocs.org/files/sha256/2a/3d/2a3d699344f724596125cadf41765128d60c7857c8f777803414901fe4e51ed2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/57F8320ED396D0C085256CC20056A4EB.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA7846SW

## ADs that name it (0)

None.

## Approved models (2)

- McDonnell Douglas Corporation DC-9-83 (MD-83) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))
- McDonnell Douglas Corporation DC-9-87 (MD-87) ([TCDS A6WE](https://openairdocs.org/tcds/A6WE))

## 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 gtaos of amtrica Bepartmtnt of transportation—jfederal Stoiation administration Supplemental Ttypt Cerdficate SA7846SW Trinible Navigation 2105 Donely Street Austin, TX 78758 190-1365 AAM 25 ^-fleattca^ifnA .

GviainaJ ' Cfaoc/ucS —— Federal Aviation A6WE McDonnell Douglas DC-9-83/-87 (MD-83/-87) — l**icr</>&c>7t, *f •^/'U/i^ ^_ i^e&i&n "uAnn&e :/ / (?7 ^ yr^ Installation of dual Tracor TA-7900 Omega/ DME-DME Navigation Systems in a DC-9-83/-87 (MD-83/-87) airplane, in accordance with Drawing List 148680-0001, Revision D, dated August 7 , 1990 or later FAA approved revision.

Airplane Flight Manual Supplement dated July 19, 1990, or later FAA approved revision, is required. Compatibility of this modification with previously installed equipment must be determined by installer.

f. **S* *f s^ March 23, 1990 July 19, 1990 V^V^'ST«^ S&dmvniA S^ Special Certificarion Office (Tillt)

Tfin certificate mat be transferred in accordance with hAR 21.47.

-2 (10-68)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (Cilr, State, and <7P code) from (Name of grantor) (Print or type) (Address of grantor) (.^lumber and street) ( ('.lit. Ulnle. and ^IP rode) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- July 19, 1990: Issued, Current. [certificate](https://openairdocs.org/files/sha256/2a/3d/2a3d699344f724596125cadf41765128d60c7857c8f777803414901fe4e51ed2)

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