航空 发表于 2011-4-13 08:48:16

Booster Spool Counter-Weights

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航空 发表于 2011-4-13 08:48:34

February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 1<BR>Booster Spool Counter-Weights<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 2<BR>Issue:<BR>• Fan platform attachment lug cracking<BR> Rig test finding<BR> Lug bending from fan platform centrifugal load<BR> No containment concern in-service<BR>Interim Action:<BR>• Counter-weight (prevents lug bending)<BR> SB 72-296<BR> Kit P/N 333-089-157-0<BR> Introd. on prod. engines since Dec 00<BR>Forward Flange Lugs<BR>Counterweight<BR>Booster Spool Counter-Weights<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 3<BR>Field Plan:<BR>• Install counter-weights on 1,600 engines<BR> Installation above 7,000 cycles requires<BR>EC inspection (SB 72-295)<BR> 934 kits delivered as of 8 Jan 2002<BR> Delivery rate &gt; 75 kits/month<BR>Final Production Improvement:<BR>• Thicker Booster spool flange (since Jul 2001)<BR> SB 72-300<BR> P/N 340-000-816-0<BR> No need for counter-weight, and EC<BR>Inspection (SB 72-295)<BR>Booster Spool Counter-Weights

kinran 发表于 2011-6-4 23:32:33

:victory: :victory:

bocome 发表于 2011-7-31 04:31:09

Booster Spool Counter-Weights
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