交通部民用航空局

發布日期

2011/05/05

適用性說明

To The Boeing Company Model 747-200B, -300, -400, -400D, and -400F series airplanes; certificated in any category; equipped with Pratt and Whitney 4000 or General Electric CF6-80C2 series engines, as identified in Boeing Alert Service Bulletin 747-54A2232, dated April 15, 2010.

型別

The Boeing Company Model 747-200B, -300, -400, -400D, and -400F Series Airplanes Powered by Pratt and Whitney 4000 or General Electric CF6-80C2 Series Engines

民航局AD編號

CAA-2011-05-001

原發布國

FAA

原AD編號

2011-09-14

生效日期

2011/06/06

主旨摘要

To detect and correct incorrectly installed mid-pivot bolt ssemblies on the spring beam on the outboard struts.Incorrectly installed bolt assemblies could lead to fatigue cracking and consequent fracturing of the mid-pivot bolt assembly, which could lead to loss of the spring beam load path and the possible separation of a strut and engine from the airplane during flight.

參考資訊（版本/ATA/SB）

ATA 54. Ref. Service Bulletin 747-54A2232

存檔序號

100-05-002

專業分項

Structure

產品類別

Airplane

備註

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