航空 发表于 2011-4-12 23:17:36

Thrust Reverser Sync-Shaft Leakage

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航空 发表于 2011-4-12 23:17:57

February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 1<BR>Thrust Reverser Sync-Shaft<BR>Leakage<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 2<BR>Thrust Reverser Sync-Shaft Leakage<BR>Background<BR>• Four operators reported 32 reports of hydraulic fluid leakage from sync<BR>shaft tubing<BR> One operator reported total of 24 reports, with 17 reported in 2001<BR>• Appear to be increasing trend with middle-to-older airplanes<BR>• Leakage is always on lower sync shaft tube, P/N 315A1805-25<BR> All but one report has leakage at lower end of tube (at lower<BR>actuator)<BR>• Leakage appears to be specific to O-ring, P/N NAS1611-15, installed<BR>between tube and tube adapter<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 3<BR>Thrust Reverser Sync-Shaft Leakage<BR>Investigation Status<BR>• Design similar to 737-300/400/500 and 757/PW2000 thrust reversers,<BR>which have no reports of chronic leakage<BR>• Investigating possible effects of new BMS3-11 LD4 and LD5 Skydrol on<BR>installation<BR> Initial results show no affect<BR>• Initiated investigation of installation<BR> Hampered by lack of returned hardware<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 4<BR>Thrust Reverser Sync-Shaft Leakage<BR>February 2002 WTT face to face CFMI / Boeing Proprietary Information - Unauthorized Disclosure, Use, or Export are Prohibited 5<BR>Summary<BR>• Boeing needs returned hardware to conduct full investigation<BR>• Request operators that experience noted leakage to provide removed<BR>hardware to local Field Service Representative for onward distribution<BR>to Boeing<BR>Thrust Reverser Sync-Shaft Leakage

kinran 发表于 2011-6-4 23:32:54

:victory: :victory:

bocome 发表于 2011-7-31 04:28:31

Thrust Reverser Sync-Shaft Leakage
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