# STC SA4878SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sierra Industries, Inc, United States
- Description: Installation of Dual Delco Carousel six inertial Navigation system.
- Applied: November 16, 1982
- Status date: December 1, 1999
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A3WE](https://openairdocs.org/tcds/A3WE)
- Certificate PDF: https://openairdocs.org/files/sha256/77/92/7792e1c7163442f4cfebadc8db011966c0f5828f444525e1c2b026e50da7fc3d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/119A50F79261757585256CC2000E3F56.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4878SW

## ADs that name it (0)

None.

## Approved models (1)

- The Boeing Company 727-100 Series ([TCDS A3WE](https://openairdocs.org/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.

JBtttteh £*atM 0f Certificate SA4878SW sierra Industries, Inc., a Texas Corporation Garner Field Road Uvalde, TX 78801 Boeing 727-100 4b Civil Air Installation of Dual Delco Carousel Six Inertial Navigation System in accordance with Drawing List B727-DL-014, Rev. B dated 3/9/83, or later FAA approved revision.

FAA Approved Airplane Flight Manual Supplement dated May 3, 1983, is required.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

.-November 16, 1982 December 23, 1982 . December 1, 1999 . May 3, 1983 Revision 1 (Signature) Michele M. Owsley, Manager Airplane Certification Office, Southwest Region (Title)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and ^IP code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street} (City, Stale, and £IP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- December 1, 1999: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/77/92/7792e1c7163442f4cfebadc8db011966c0f5828f444525e1c2b026e50da7fc3d)

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