STC SA3768WE

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA3768NE This certificate issued to: Arnav Systems, INC.

Part 3 of the CIViT Air Regulations:

Original Product -Type Certificate Number: A2050 Make: Piper Model: PA-31 Descriplion of Type Design hangeInstallation of Silver Instruments Fueltron digital tue flow and totalizer system in accordance with FAA approved Silver Instruments Master Drawing List A01640 "NC", or later FAA approved revision.

Limitations and Conditions: Approval of this change in type design applies to the above model aircraft only. This approval should not be extended to other aircraft of this model on which other previously approved modifications 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 Supplement S123, dated November 3, 1978, or later FAA approved revision must be maintained as part of the permanent records for the modified aircraft.

Date sapplicatim: October 12, 1978 Tute missed: April 29, 1991 Date of Issuance: November 3, 1978 Jake museuded: April 29, 1991 FEDERAL ANTATION By direction 1/ the Administrater TOMINISTR 47101 Manager, Aircraft Modification Branch Seattle Aircraft Certification Office ( Title)