STC SH2212NM

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SH2212NM This certificate issued to: Arnav Systems, INC.

Purt 6 of the CIViT Air Regulations:

Original Product - Type Certificate Number IH11 Make:

Sikorsky Model:

S-58BT, DT, ET, FT, HT, and JT Description of Type Design Change: Installation of a Silver Instruments Fueltron IIIPT- IGS, IIIPT-IPS, IIIIPT-ILS, or IIIPT-IKS digital fuel flow indicating system in accordance with FAA approved Silver Instruments Master Drawing List A02017 "NC", dated September 1, 1983, or later FAA approved revision.

model helicopter only. timilalions and bendilions: Approval of this change in type design applies to the above This approval should not be extended to other aircraft of previolete approval die atone vir patron els core at act up one ochess airworthiness of that helicopter. A copy of this Certificate, and FAA approved Rotorcraft Flight Manual Supplement S225, dated October 18, 1983, or later FAA approved revision must be maintained as part of the permanent records for the mei tied/helicopteSipperling date which is the basis for approval shall remain in effect until sur rendered, suspended, rewked, or a termination dale is sherwise established by the Administrater of the Federal Aviation Administration .

Date of Application: September 1, 1983 Ile vissued: April 29, 1991 Date of Issuance: October 18, 1983 I at umended: April 29, 1991 FEDERAL AVIATION By Direction of the Administrator Did ame Manager, Aircraft Modification Branch Seattle Aircraft Certification Office (Title )

47.