STC SA2483WE

WE 102 N United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2L,831E This certificate issued to: Continental Aix Lines, Inc • International Airport Los Angeles, CA 99009 Purt 25 of the Federa] Aviation Regulations: (See IC data sheet AZOWE) Original Product -Type Certificate Number: AZOWE Make: Boeing Model: 747-124 Description of Type Design Change: The direct replacement of any of the Littor TN-5l Inertial Navigation Systems installed in positions 1, 2 or 3 with the Collins INS-61B Inertial Navigation Systems. Continental Air Lines Supplementary Revision No. 1 dated 7 MAR 1972 or later FAA approved revision to Boeing AFM Document D6-13703.124 is required.

Install in accordance with FAA sealed Continental Air Lines Drawing 834-14862 INS-61B P/N's: INU 792-6864-302 792-6554-001 CDU 792-6550-301 Battery 792-6978-001 Limitations and Conditions: The approval of this change in type design applies basically to this model 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 by the installer that the interrelationship between this change and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that aircraft. This determination should include consideration of significant changes in weight dis- There and he supposing den Fixed frane man feel ur vendered, suspended, revoked, or a termination date is stherwise established by the Ildminis trater of the Federal Aviation Administration .

Date of Application: . 30 November 1971 Date Reissued:

Date of Issuance: 7 MAR 1972 Date Amended:

EDERAL AVIATION By Direction of the Administrator (Signature ) *MINISTRATIO Acting Chief, Aircraft Engineering Division (Title)