STC SA4090NM

proj # ANM 1008-0251 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA4090NM This certificate issued to: Bal1 communication Systems Division Part 25 of the Federal Aviation Regulations.

Original Product - Type bertificate Number: A2OWE Make: Boeing Model: 747-300 Description of Type Design Change:

Installation of an aviation satellite communication system (Satcom) in accordance with Ball Communication Systems Division Drawing List DL300887, revision C, FAA approved October 15, 1990 or later approved revision.

FAA approved Airplane Flight Manual Supplement dated October 15, 1990 fhis approval should not be extended to aircraft of this model on which other previously approved modifications is required. are incorporated unless it is determined that the relationship between this change and any of those aqueved adverse erfect upon the airworthiness of that including changes in type rendered, suspended, revoked, or a lermination date is therwise established by the drinis brat r of the Federal Aviation Administration .

Date of Application: January 8, 1990 Sinte reissued:

Date of Issuance: october 15, 1990 I ate unended:

FEDERAL AVIATION By direction of the tideripia frat Mak RONALD F. MAY, (Signature ) Acting superviso TAMINI STRATO Northwest Mountain Region, Denver, Colorado Denver Aircraft Certification Field Office (Title) 47 FAA FORM 8110-2 (10-68)

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA4090NM A copy of this Certificate, Continuation Sheet, and Airplane Flight Manual Supplement dated October 15, 1990, or later FAA approved revision, must be maintained as part of the permanent records for the modified aircraft.

FAA FORM 8110-2-1 (10-69) PAGE 30F 3 PAGES