航空 发表于 2011-4-14 10:46:34

Water wash

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航空 发表于 2011-4-14 10:46:57

CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water wash<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water wash<BR>• Fleet experience<BR> Water wash performed on PCA engine showed an EGT margin<BR>gain of 12°C<BR> Two recent engine water wash on -7B27B engines,showed<BR>gain between 15°C and 20°C<BR> One other operator report of water washing every 1000 hours<BR>– No data of gain but low deterioration rate reported<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Transavia experience<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water Wash<BR>• Water Wash<BR>Two Transavia engines (-7B27) washed on Nov 9th 2000,<BR>ESN 874-201 pos1 :TSN/CSN 9576 / 3470<BR>ESN 874-204 pos2 : TSN/CSN 9576/ 3470<BR>The two engines were successfully water washed within two hours and<BR>half using a procedure with dedicated equipment for direct water<BR>ingestion in the primary flowpath.<BR>Preliminary results showed significative EGT margin gain ; between 15°C<BR>and 22°C<BR>Values to be confirmed with more performance datas feed-back.<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water Wash<BR>Transavia experience<BR>Two probes were installed on the Fan Frame internal V groove<BR>ring 180°<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water Wash<BR>View of remaining Water in the exhaust nozzle just after the water<BR>wash.<BR>CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, December 2000 WTT face to face or Export are Prohibited<BR>Water Wash<BR>On going<BR>Continue to monitor EGT margin on recently washed<BR>engines to confirm results and retention<BR>Continue to monitor fleet experience

kinran 发表于 2011-6-4 23:28:44

:victory: :victory:

bocome 发表于 2011-7-31 04:31:46

Water wash
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