航空 发表于 2011-4-12 11:19:30

CFM56-7 Starter Reliability

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航空 发表于 2011-4-12 11:19:55

CFM56-7<BR>Starter<BR>Reliability<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 2<BR>0<BR>10000<BR>20000<BR>30000<BR>40000<BR>50000<BR>Jan-99<BR>Mar-99<BR>May-99<BR>Jul-99<BR>Sep-99<BR>Nov-99<BR>Jan-00<BR>Mar-00<BR>May-00<BR>Jul-00<BR>Sep-00<BR>Nov-00<BR>Jan-01<BR>Mar-01<BR>May-01<BR>Jul-01<BR>Sep-01<BR>Nov-01<BR>Date<BR>MTBUR (hours)<BR>12 Month Rolling Average<BR>MTBUR<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 3<BR>Summary of -P08 Reported Removals<BR>Leakage is Top Removal<BR>0<BR>10<BR>20<BR>30<BR>40<BR>50<BR>60<BR>70<BR>80<BR>90<BR>100<BR>Oil Leakage Debris on<BR>mag plug<BR>No start FOD No Report<BR>Findings<BR>Count<BR>Leakage is Top Cause for Removal<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 4<BR> Typical Symptoms<BR>-White smoke during engine starts<BR>- Oil dripping from starter screen<BR> Cause Identified<BR>-O-ring friction increases with time and temperature<BR>-Spring forces insufficient to maintain contact between<BR>carbon seal and rotor resulting in oil leakage<BR> Fix to be Implemented<BR>- Fluorocarbon O-ring material changed from durometer<BR>75 to durometer 60 to reduce friction<BR>Oil Leaks Leading Cause for Removals<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 5<BR>Seal<BR>Oil Leak<BR>Smoke<BR>Seal Case<BR>O-ring<BR>Carbon Ring<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 6<BR>2001<BR>4th Qtr 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr<BR>Turbine Seal Wear<BR>Couple Testing<BR>Oil Leakage TOPS8D<BR>2000 2002<BR>Turbine Rotating Group<BR>TOPS8D Analysis &amp; Test Complete<BR>Introduce Turbine Stack &amp; Seal Design<BR>Changes<BR>Turbine Seal Turn-on/Turn-off<BR>Test Complete<BR>P09<BR>Introduction<BR>P10<BR>Introduction<BR>Starter Definitions<BR>• P09: Existing P07 or P08 with redesigned Turbine Seal<BR>- Upgrade P07 or P08 field units at first shop visit - no charge<BR>• P10: P08 with Redesigned Turbine Seal and Turbine Stack<BR>- New production unit<BR>- Upgrade P08 field units to P10 at Customer request<BR>- Cannot upgrade a P09 to a P10 if P09 is upgraded from a P07<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 7<BR>P07<BR>P09<BR>P08<BR>-or-<BR>Redesigned Turbine<BR>Seal<BR>Redesigned Turbine Seal<BR>and Turbine Stack<BR>P08 P09 P10<BR>P07 P09 P10<BR>*Cannot upgrade to P10 from P09 if the P09 is based on a P07 upgrade<BR>Starter Part Definition &amp; Upgrade Trees<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 8<BR>• Program 95% complete<BR>• 65 units remain for upgrade<BR>• Free upgrade ends Apr 2002 per<BR>SB 80-005<BR>Fleet Wide P08 Upgrade Status<BR>CFM56 Operators Conference – May 21 - 22, 2002 CFM Proprietary Data Unauthorized Disclosure Prohibited 9<BR>Summary<BR>• Root Cause of oil leakage established<BR>• P09 upgrades available in July 2002<BR>• New P10 starter upgrades to be introduced<BR>September 2002

979199501 发表于 2011-4-12 14:21:29

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CFM56-7 Starter Reliability

kinran 发表于 2011-6-4 23:36:45

:victory: :victory:

bocome 发表于 2011-7-31 04:23:48

CFM56-7 Starter Reliability
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