204-040-755-005

www.DataSheet4U.com TECHNICAL BULLETIN No. A Subsidiary of Textron Inc. DATE REV 427-02-04 May 16, 2002 1 of 4 Date Page MODEL AFFECTED: 427 SUBJECT: INTRODUCTION OF NEW HARDENED WEAR SLEEVE P/N 427-044-123-101. HELICOPTERS AFFECTED: Model 427 helicopters serial number 56001 through 56040 serial number 58001 through 58002. [Model 427 helicopters serial numbers 56041 and subsequent and 58003 and subsequent will have the intent of this bulletin accomplished prior to delivery.] COMPLIANCE: www.DataSheet4U.com At Customer’s Option. Recommended at next scheduled component inspection of driveshaft assembly P/N 427-044-100-103. DESCRIPTION: Field reports indicate that the wear sleeves P/N 427-044-117-101 installed on forward tail rotor driveshaft assembly P/N 427-044-100-103 tends to exhibit a premature wear groove. This bulletin introduces an improved, hardened wear sleeve. APPROVAL: The engineering design aspects of this bulletin are Transport Canada approved. AN APPROPRIATE ENTRY SHOULD BE MADE IN THE AIRCRAFT LOGBOOK UPON ACCOMPLISHMENT IF OWNERSHIP OF AIRCRAFT HAS CHANGED PLEASE FORWARD TO NEW OWNER www.DataSheet4U www.DataSheet4U.com 4U.com www.DataSheet4U.com T.B. 427-02-04 Page 2 of 4 MANPOWER: Approximately 2.0 additional man-hours are required to complete this bulletin when accomplished in conjunction with a scheduled driveshaft inspection. Man-hours are based on hands-on time, and may vary with personnel and facilities available. MATERIALS: Required Mat...