航空 发表于 2011-4-15 19:21:18

CFM Fuel Filter Spinning

**** Hidden Message *****

航空 发表于 2011-4-15 19:21:32

February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 1<BR>Fuel Filter Spinning<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 2<BR>Fuel Filter Spinning Issue<BR>Background<BR>• Four events reported of fuel filter spinning in the gear housing MFP<BR>• Investigation revealed flurosilicone seals instead of fluorocarbon seals<BR> Other CFM56 engine models use flurosilicon seals<BR>Investigation<BR>• Main fuel filter end cap heavy worn out<BR>• Main fuel filter exhibited missing packing o-ring<BR>• Main fuel filter equipped with non conforming packing o-rings<BR>(fluorosilicone seals instead of fluorocarbon seals)<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 3<BR>Corrective Actions<BR>• Customer sensitized through AOW n°99/CFM56/358 and Fleet<BR>Highlite articles issued in Jul 99, Sep 99 and Dec 00<BR>• Main fuel filter installation procedure reviewed and released through AMM<BR>73-11-10 to avoid packing o-rings main fuel filter damage at installation<BR>• Boeing message number n°M-7200-00-03047 issued in Dec 2000 to check<BR>and replace fuel filter element packing o-rings<BR>• Main fuel filter packing O-rings standardized (fluorocarbon “viton”) for all<BR>CFM56 engine models<BR> To avoid configuration error in mixed fleet<BR> Released through service bulletins (-3 : 73-0137, 5A: 73-0160, 5B:<BR>73-084, 5C: 73-0101, 2C:73-084) since May 2001<BR>Fuel Filter Spinning Issue<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 4<BR>Corrective Actions (Final Fix)<BR>• New main fuel filter element modifications<BR> Fluorocarbon packing o-rings directly installed on the fuel filter element<BR>by Supplier<BR> Anti rotation of the main fuel filter element<BR>– No change in pump housing<BR> Other modifications introduced to take into account of end cap fuel filter<BR>fretting wear marks (cover side)<BR>• Engine testing completed<BR> No fuel filter rotation observed<BR>• Expected release early 2nd Qtr 2002 (CFM56-7B S/B category 5)<BR> New fuel filter element PN: 219946 (old fuel filter element PN: 218134 not<BR>procurable in spare)<BR>Fuel Filter Spinning Issue

979199501 发表于 2011-4-15 23:57:14

回复 1# 航空 的帖子

Arm
Proposed Switch Configuration
Current Double Throw
Proposed Single Throw
Run contact eliminated
Introduction Logistics
• CFMI/Boeing/Honeywell laun

kinran 发表于 2011-6-4 23:19:45

:victory: :victory:

bocome 发表于 2011-7-31 04:50:58

CFM Fuel Filter Spinning
页: [1]
查看完整版本: CFM Fuel Filter Spinning