航空 发表于 2011-4-29 11:28:01

CFM Fan Rotor Module Booster Spool Wear

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航空 发表于 2011-4-29 11:28:11

CFM56-7B WTT Meeting - September,26-27/2002 CFM / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 1<BR>Booster Spool Wear<BR>Fan Rotor Module<BR>CFM56-7B WTT Meeting - September,26-27/2002 CFM / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 2<BR>Booster Spool Wear<BR>Background<BR>Glazing/wear marks evidenced on the<BR>forward flange of the booster spool<BR>at each fan blade position<BR>As of today, 28 engines received<BR>special inspection<BR> 11 engines with no abnormal<BR>condition found<BR> 14 engines found with light<BR>marks of wear noticed on<BR>some areas<BR> 3 engines found with deep<BR>wear<BR>– Up to 4 mils<BR>Fan Rotor Module<BR>Fwd booster<BR>spool flange<BR>Fan blade shank<BR>Fan disk<BR>CFM56-7B WTT Meeting - September,26-27/2002 CFM / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 3<BR>0<BR>0,05<BR>0,1<BR>0,15<BR>0,2<BR>0,25<BR>0,3<BR>0 5000 10000 15000 20000 25000 30000<BR>OPERATING TIME (Cycles Since New)<BR>WEAR DEPTH (mm)<BR>Conditon v isually ev aluated<BR>Wear depth measured<BR>Fleet av erage<BR>Projected wear at part life limit<BR>expiration (30,000 cycles): 0,007<BR>in. (0,19 mm)<BR>7643<BR>Booster Spool Wear Inspection Status<BR>Fan Rotor Module<BR>CFM56-7B WTT Meeting - September,26-27/2002 CFM / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 4<BR>Engineering Activity completed<BR> Glazing/wear marks caused by contact with fan blade shank aft<BR>surface during wind milling and engine start sequence (&lt;33 rpm)<BR> Rig and engine tests completed in an effort to minimize wear in<BR>future operation<BR> 3000 cycles cumulated during engine test<BR>– 3.256.000 rotation cumulated rig test<BR> Seven configurations tested<BR>– Best result obtained with periodic lubrication of contact area<BR> Booster spool fwd flange and fan blade shank wear level<BR>significantly reduced (3x)<BR>Booster Spool Wear<BR>Fan Rotor Module<BR>Root Cause Identified - Final fix Defined<BR>CFM56-7B WTT Meeting - September,26-27/2002 CFM / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 5<BR>Corrective Actions<BR> CESM No.005 updated to implement periodic lubrication of the Fan Blade<BR>shank rear surface<BR>– Revision 001 issued in April, 2002<BR> Manual limits extended in effort to minimize in-service burden<BR>– AMM revision issued in February, 2002<BR> Wear is permitted if not more than 0.008 in. (0,20 mm) deep<BR>– New limit extension under review December, 2002<BR> Repair procedure being developed to restore part condition at piece-part<BR>level<BR>– Estimated completion date December, 2002<BR>Booster Spool Wear<BR>Fan Rotor Module

kinran 发表于 2011-6-4 22:34:47

:victory: :victory:

bocome 发表于 2011-7-31 05:25:25

CFM Fan Rotor Module Booster Spool Wear

chutiankuo0832 发表于 2011-8-24 22:14:30

eptember,25-26/2002 CFMI / Boeing Pro
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