标题: Fan Retaining Flange/Spacer [打印本页] 作者: 航空 时间: 2011-4-13 08:49:55 标题: Fan Retaining Flange/Spacer
作者: 航空 时间: 2011-4-13 08:50:12
February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 1 Fan Retaining Flange/Spacer February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 2 No sharp angle Background • At least 40% of delivered population may exhibit wear/marks in the slot corners : 0.005 to 0.010 in (0.12 to 0.25 mm) deep Defects identified during on-wing maintenance action (part exposure) Status • All damage permitted if not more than 0.002 in (0.05 mm) deep after removal of high metal • Two (2) repairs available applicable to the Fan Retaining Flange, and to the Fan Blade Spacer • 3D Model analysis demonstrated that the interferences are mainly due to spacer sharp angles geometry. New Spacer design cancels interferences with Fan Retaining Flange Final Fix • Spacer Design has been modified : Sharp angles rounded Parts implemented in production in Mar 2002 SB 72-0344 R1 including new design, and rework procedure issued on 17 Dec 2001 • Fan Retaining Flange redesign has required additional analysis to optimize load distribution New design approval Feb 2002 New parts in production 2 Q 2002 Fan Retaining Flange/Spacer Fan Retaining Flange and Spacer Interference February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 3 Typically wear resides in the slot corner around the circumference of flange Fan Retaining Flange and Spacer Interference Fan Retaining Flange/Spacer作者: kinran 时间: 2011-6-4 23:28:04
