航空 发表于 2011-4-24 12:21:50

Fan Case Bracket Elongated Holes

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航空 发表于 2011-4-24 12:22:00

CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>Gary Morriss<BR>Boeing Service Engineering<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>Elongated Bolts<BR>Holes in Fan Case<BR>Elongated Bolts<BR>Holes in Fan Case<BR>Elongated Bolts<BR>Holes in Bracket<BR>Elongated Bolts<BR>Holes in Bracket<BR>NNotoetebbolotltwweaerar<BR> Background<BR> Boeing and CFM have received three reports from one operator of<BR>looseness of several Boeing and one CFM brackets.<BR>– Looseness resulted in elongated holes in fan case and brackets.<BR>– In one instance, bolts separated.<BR>– All affected engines had over 14,000 hours.<BR> Loose brackets were found on B1, B4 and B8 flanges.<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>• Affected areas<BR>HYDRAULIC<BR>PRESSURE<BR>HOSE<BR>VIEW A-A<BR>FWD<BR>GEARBOX<BR>REF<BR>VIEW B-B<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>POWER<BR>FEEDERS<BR>332A2930-37 OR -72<BR>332A2910-125 OR<BR>332A2930-57<BR>ELONGATED<BR>HOLES IN<BR>THIS<BR>FLANGE<BR>AND THIS<BR>FLANGE<BR>HYDRAULIC<BR>PRESSURE<BR>LINE<BR>VIEW A-A (BOEING PARTS)<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>BOEING<BR>BRACKET<BR>EXAMPLE OF<BR>BOLT<BR>ELONGATION<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>ELONGATED<BR>HOLES IN<BR>FLANGE<BR>FUEL<BR>FLOW<BR>METER<BR>VIEW B-B (CFM PARTS)<BR>AFT LOOKING FWD<BR>P/N340-013-004-0<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR>ELONGATED HOLES<BR>IN FLANGE (BOTH<BR>BRACKET HOLES)<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, September 2002 WTT face to face or Export are Prohibited<BR>Fan Case Bracket Elongated Holes<BR> Actions In work<BR> Boeing and CFM team has been formed to investigate reports and<BR>determine root cause.<BR>– Plan to share interface data between brackets, bolts and fan case.<BR> Currently attempting to gather additional information.<BR>– Have asked reporting operator for additional information.<BR>– Have sent inspection requests to three operators asking for inspection of<BR>brackets on high time engines (over 10,000 hours).<BR> Results not yet available.<BR>– Currently analyzing two returned Boeing brackets.<BR> CFM to evaluate fan case repair<BR>– Evaluate fan case repair options.

yangy2397 发表于 2011-4-27 15:45:58

<A href="thread-7267664-1-1.html"><STRONG>Fan Case Bracket Elongated Holes</STRONG></A>

kinran 发表于 2011-6-4 22:40:26

victory: :victory:

bocome 发表于 2011-7-31 05:20:54

Fan Case Bracket Elongated Holes
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