# STC SA3849WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Arnav Systems Inc, United States
- Description: Installation of Fueltron IIIG or IIIP digital fuel flow and totalizer system.
- Applied: October 30, 1978
- Status date: April 29, 1991
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A4](https://openairdocs.org/tcds/2A4)
- Certificate PDF: https://openairdocs.org/files/sha256/f6/f6/f6f6535372b902d1f4e8e944307590014d82c4cffdccc0a316e34f4439ca122d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B77DCFE8B1A0E17685256CC2000C5AF9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3849WE

## ADs that name it (0)

None.

## Approved models (1)

- Twin Commander Aircraft LLC 685 ([TCDS 2A4](https://openairdocs.org/tcds/2A4))

## 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: SA3349WE This certificate issued to: Arnav Systems, INC.

Purt 3 of the Civil Air Regulations:

Original Product - Type bertificate Number: 2A4 Make: Rockwell Commander Model: 685 Description of Type Design Change: Installation of Silver Instruments Fueltron IIIG or IIIP digital fuel flow and totalizer system in accordance with FAA approved Master Drawing List A01679 "NC", or later FAA approved revision.

Original equipment pressure-type fuel flow gauge must remain in instrument panel with this installation.

Limilalins and bendilions Approval of this change in type design applies to the above mode. aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved moditications are incorporated unless it is determined that the relationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate, and FAA Approved Silver Instruments Airplane Flight Manual Supplements S132 or S133 dated January 30, 1979, or later FAA approvec revision must be maintained as part of the permanent records for the modifiec r of the Federal Aviation Administration Date applicativOctober 30, 1978 Jule ressured: April 29, 1991 Date of Issuance: January 30, 1979 Jal amended: April 29, 1991 FEDERAL AVIATION By Direction of the Administrator (Signator TAINIST RAN O Manager, Aircraft Modification Branch Seattle Aircraft Certification Office (Title)

47.

## Every issue (1)

- April 29, 1991: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/f6/f6/f6f6535372b902d1f4e8e944307590014d82c4cffdccc0a316e34f4439ca122d)

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