航空 发表于 2011-4-13 08:49:55

Fan Retaining Flange/Spacer

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航空 发表于 2011-4-13 08:50:12

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

kinran 发表于 2011-6-4 23:28:04

:victory: :victory:

bocome 发表于 2011-7-31 04:38:08

Fan Retaining Flange/Spacer
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