# STC SA1047SO

- Type: Supplemental type certificate
- Status: Current, Surrendered
- Holder: Avitas Engineering, United States
- Description: Installation of the Litton LTN-211 omega navigation system.
- Status date: February 28, 2009
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A23WE](https://openairdocs.org/tcds/A23WE)
- Certificate PDF: https://openairdocs.org/files/sha256/1f/c8/1fc8c8fadad91b78afbdac42475bd2bed05262237291282ad6b7ecd6300950e2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4401F2595433BF778625756E0064E6F5.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1047SO

## ADs that name it (0)

None.

## Approved models (1)

- Lockheed Aircraft Corporation L-1011 Series ([TCDS A23WE](https://openairdocs.org/tcds/A23WE))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A104750 This certificate issued to: Avitas Engineering Miami, FL 33126 Pas Federal Aviation Regulations.

Original Product - Type bertificate Number: A23WE STC Surrender processed: MoDa fin Make: Lockhee Approval by: Melvih Taylor, ATL ACO Manager aim Model: Make: 23 , PER 200% Description of Type Design Change:

October 25, 1978 (or later approved y Bastern Air Lines Engineering Report Installation of the Litton LIN-2X1 Omega Navigation System in accordance with E 1002, Revision B, Appendix A, dated ‚on Added Notes at Surrender: Future unsafe conditions existing in the produck-can result in an airworthiness directive requiring correction of the unsafe condition before further flight. In there is no entity to comply with 14 CFR 21.99(a), Required design changes, the existence of an unsate condition might result in permanently grounding of the aircraft Flight Manual 1011 series this series Pimitatio Placemet pang might not be grailable in the future. termiped by the installer that the interrelationship between this upp- which anes ement ther previously approved modifications are incorporated This approval should not be extended to other airplanes of dated February 7, 1979, and is limited to Lockheed L- This Supplemental Type Certificate requires Airplane change advers unless i ra the supporting data which is the basis for approval shall remain in effect until sur- upon the airworthiness of that airplane. those other previously approved modifications will produce no rende uspended, nevoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration .

Date of Application: June 14, 1978 Date Reissued: June 5, 1992 Date of Issuance: February 7, 1979 Date Amended:

FEDERAL AVIATION By Direction of the Administrator abut 1 hullen John Tigue (Signature ) TOMINISTRA ON Manager, Atlanta Aircraft Certification Office (Title)

## Every issue (1)

- February 28, 2009: Surrendered, Current. [certificate](https://openairdocs.org/files/sha256/1f/c8/1fc8c8fadad91b78afbdac42475bd2bed05262237291282ad6b7ecd6300950e2)

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