CFMI PROPRIETARY INFORMATION Data through December 2001 Scorecard/Fleet Experience CFMI PROPRIETARY INFORMATION Data through December 2001 ATO Rate Goal 0.010 Current rate 0.012 ATO Rate Goal 0.010 Current rate 0.012 Dispatch Reliability Goal 99.95 Current 99.96 Fleet Statistics • 12 month rolling average In-Service and Flight Line Issues Current month Previous month Fleet Experience Hours: 10,741,308 Cycles: 5,582,418 Engines: 2,137 Aircraft 1,004 Issue Status • HPSOV Switch • Oil/Fuel Delta P Switch • Fan Disk • Platform Aft Pin • LPT Blade (DAC) • N1 Vibration - Flight Line • EEC • HPT Blades • HMU - FMV • AGB - N2 hand cranking pad gear • MSV position faults • N2 Tone - Flight Line CFM56-7 Scorecard Total IFSD Rate Goal 0.003 Current 0.003 Total ATO Rate Goal 0.020 Current 0.028 Total SV Rate Goal 0.100 Current 0.024 Total UER rate Goal 0.040 Current 0.015 Issue Leading Indicators Booster Spool FWD Flange Wear VBV Guide Pad Delamination Booster Abradable Corrosion Fan Platform Life LPT2 Nozzle Cracking R G G Y Y R G G G Y Y R CFMI PROPRIETARY INFORMATION Data through December 2001 • Air Algerie (7) • Air Berlin (24) • Air China (7) • Air Europa (12) • Air Pacific (3) • Alaska (21) • Aloha (5) • Amiri Flight (4) • American (76) • American Transair (14) • ARAMCO (5) • Axon (2) • Azzura (2) • Braathens (11) • Britannia (5) • BWIA (6) • City Bird (3) • Continental (116) • COPA (8) • China Airlines (9) • China Southwest (7) • China Wuhan (2) • China Yunnan (3) • Delta (61) • Easyjet (9) • El Al (5) • Euralair (6) • Futura (7) • Germania (10) • GOL Transportes (7) • Hainan (7) • Hamburg Intl (3) • Hapag-Lloyd (27) • Helios Airways (2) • Jet Airways (19) • Kibris (3) • KLM (17) • Korean (15) • Lauda (6) • LAPA (8) • Maersk (7) • Mandarin (3) • Midway (10) • North American (2) • Novair (3) • Pegasus (11) • RAM (9) • Ryanair (17) • Sahara (3) • SAS (53) • Shanghai (6) • Shenzen (6) • South African (14) • Southwest (115) • Sterling (6) • Suncountry (6) • Sunexpress (6) • TAROM (3) • Transaero (2) • Transavia (14) • THY (25) • Tunis (8) • US Navy (4) • Varig (7) • Virgin Blue (6) • Westjet (4) • Xiamen (6) • Xinjiang (5) • BBJ (62) • Others (23) 737-6/-7/-8/-900 Customers and Fleet Size CFMI PROPRIETARY INFORMATION Data through December 2001 Age Distribution - Hours 0 50 100 150 200 250 0 50 100 150 200 250 Number of Engines ETSN Distribution CFMI PROPRIETARY INFORMATION Data through December 2001 Age Distribution - Cycles 0 50 100 150 200 250 300 350 0 50 100 150 200 250 300 350 Number of Engines ECSN Distribution CFMI PROPRIETARY INFORMATION Data through December 2001 IFSD Rate CFM56-7 IFSD Rate 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070 0.080 0.090 IFSD per 1K hours 120 Minute ETOPS Criteria Basic 12 Month Rolling Average Total 12 Month Rolling Average 180 Minute ETOPS Criteria CFMI PROPRIETARY INFORMATION Data through December 2001 IFSD Causes - Total Last 12 Months Cause Quantity Corrective Action Oil Temperature Sensor 4 Redesign insert incorp’d in production (88T-481) June 01, Field containment issued SB 72-A336 TEO system logic revised in - SB 72-064 (S/W 7.B.M1) to preclude invalid oil pressure indication Fleet plan defined: Rework or replace at shop visit No 3 brg 2 No active program (3 failures in 10 million Flt hours) Ps3 Line 1 Safety wire introduced to production engines - June 01, and SB 72-333 introduces lock wire at shop visit. Safety wire provisions introduced into EEC SB 73-062R1 No 4 brg Suspect 1 New outer race material 1st Qtr 02 Radial Drive Shaft 1 Under Investigation Separation Starter Failure (P08) 1 Under Investigation - Turbine bearing failure Engine Controls 1 EEC PSS flex failure CH B (CFMSB 73-0065) along with a VSV out of range fault on CH B of the HMU Engine controls 1 HMU under investigation - Eng. Stuck at 85% N1 Data for total rate: Lightening strike 1 Under investigation - DFDR and EEC received Maintenance error 1 IDG not properly secured after IDG replacement Oil filter bypass 1 Chips in oil filter … previous starter failure - AMM improvements FOD - Bird Strike 1 No Active Program CFMI PROPRIETARY INFORMATION Data through December 2001 Aborted Takeoff Rate CFM56-7 ATO Rate 0.000 0.005 0.010 0.015 0.020 0.025 0.030 0.035 0.040 ATOper 1000 departures. Basic 12 mo Rolling Total 12 mo Rolling CFMI PROPRIETARY INFORMATION Data Aborted Takeoff Causes - Last 12 monththsrough December 2001 Cause Quantity Corrective Action Data for basic rate: MSV position fault 8 Cell 58 testing continues. Solenoid driver output not enough to activate solenoid under certain conditions. Containment and improvement options being defined Eng Control light 4 Fleet highlights published, maintenance hand book (No faults recorded) developed to aid mtc im FMC-CDU interrogation TBV Position fault 3 Under Investigation Oil/fuel Filter DP 2 New FFDP design P/N QA7995 field penetration progressing .. further mechanical switch improvements being evaluated HMU - FMV 2 Product improvements for 12 of 13 known issues Evaluating revising EEC SW fault logic from 2 to 4 degrees to alleviate position & signal disagree faults HPT Blade 1 HPT blade Airfoil separation - Telemetry Test completed - Evaluating the results Eng Control light 1 HPTACC TC fault - 7.B.M1 SB 73-064 Issued Fuel Pump 1 Failure to attain T/O power - Fuel pump fault confirmed HMU - No response to 1 Manufacturing defect in HMU’s shutoff shuttle valve thrust lever input Data for total rate: Bird strike 4 N/A Operation 2 N/A Fumes in cabin - Mtnc 2 N/A HPC Blade Lock liberation 1 Assembly error: preventive actions in place A/C system APU Fumes 1 N/A CTAI Valve 1 Ref regulator improvements in work - 2nd qtr 2002 CFMI PROPRIETARY INFORMATION Data through December 2001 Shop Visit Rate CFM56-7 Total Shop Visit Rate 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 199712 199803 199806 199809 199812 199903 199906 199909 199912 200003 200006 200009 200012 200103 200106 200109 200112 Shop Visit per 1K hours 12 Month Rolling Average CFMI PROPRIETARY INFORMATION Data Shop Visit Causes - Total engine Last 12 montthhrsough December 2001 Cause Quantity Corrective Action LPT Blade 42 DAC unique. Control actions in place. New blade 2Qtr 02 Proactive No 4 brg removal 14 Bearings from suspect lot of 47 Maintenance 9 N/A FOD/Other 6 N/A HPT Blade Evaluation 6 Sampling program to evaluate HPT blade shank cracks Fan Disk replacement 5 CESM 005 and S/B 72-253 issued, New AMM limits issued TEO sensor 4 Redesign inserts for additional robustness. TEO system logic revised in S/W 7.B.M1 - SB 72-064 to preclude invalid oil pressure indication. Field containment for housing issued 72-A336 VBV Pad disbondment 3 Bonding process improvement incorp’d into production. EEC software improvements 2 Qtr 02 No. 3 Bearing 2 No active program No. 4 Bearing 2 MCD Inspection - SB 72-180, New outer race material 1st Qtr 02 Combustor distress 2 Secondary swirler material loss - Under investigation AGB hand cranking pad 2 In investigation brg HPT Blade separation 1 In-investigation, telemetry test scheduled Oct 2001 Core vibration 1 Top case core balance procedure developed.. Rotor stack improvements incorp’d into production. Oil Leak 1 Oil leak into fan disk and booster - Assy error Metal in HPT 1 HPT air manifold spalsh plate --- CFM56-7 S/B 72-167 Air manifold HPC stg 4 blade lock 1 Assembly error. Assembly planning to require set screw drop measurement. separation Fan abradable shroud 1 Attributed to quality issue - audit & corrective actions complete dsibondment Fan Blade Platform 1 Fan blade platform pin undertorqued No 1 brg 1 Under Investigation CFMI PROPRIETARY INFORMATION Data through December 2001 Total Unscheduled Engine Removals CFM56-7B Unscheduled Engine Removals 0.000 0.010 0.020 0.030 0.040 0.050 0.060 0.070 0.080 199712 199803 199806 199809 199812 199903 199906 199909 199912 200003 200006 200009 200012 200103 200106 200109 200112 UERs per 1k hours CFMI PROPRIETARY INFORMATION Data through December 2001 CFM56-7 Dispatch Reliability 99.700 99.750 99.800 99.850 99.900 99.950 100.000 199712 199803 199806 199809 199812 199903 199906 199909 199912 200003 200006 200009 200012 200103 200106 200109 200112 Successful Departures 12 Month Rolling Average CFMI PROPRIETARY INFORMATION Data Delay and Cancellation Top Causesthrough December 2001 (basic engine last 12 months) Cause Quantity Corrective Action HMU: - FMV 42 Under investigation - HPSOV 45 SB 73-067 to issue Feb 02 - Introduces SPST switch Ignition System 40 Ignition lead/exciter ... no anomalies Power switching relay available for Aircraft incorp. Soft time recommendation not acknowledged Utilize improved EEC S/W troubleshooting capability Fuel delta pressure switch 30 Potted switch improvement S/B 73-042 1 flight allowance added to DDPG MMEL PALL offering discount on switch upgrade Starter 30 50 % oil leaks and 50 % mechanical failures EEC 21 PSS modification SB 73-065. Improved ATP in place. Program improvements being monitored Oil delta P switch 20 Under Investigation N1 Vibration 19 Vibration Maint. Action published - CESM 007 issued Engine Control light 13 Under Investigation - Need airline FDR data (No Fault Codes) HPTACC Valve 10 Improved LVDT S/B 75-002. TCC thermocouple input eliminated in EEC S/W 7.B.M1 - SB 73-064 CFMI PROPRIETARY INFORMATION Data through December 2001 CFM56-7B Revenue Service Status Entry into service December 1997 Operators/aircraft in service 115/1004 Cumulative engine hours/cycles 10,741,308/ 5,582,418 Daily utilization hours/cycles 9.5/4.9 Average flight leg 1.92 High time and cycle engines: hours/cycles 16,326 / 10,324 Total SVR (per 1,000 EFH) .024 Total IFSD rate (per 1,000 EFH) .003 Dispatch reliability 99.96 Meeting or Exceeding Reliability Goals作者: 979199501 时间: 2011-4-12 00:15:42 标题: 回复 1# 航空 的帖子
CFM56-7B TRAINING MANUAL ENGINE FAN TRIM BALANCE作者: kinran 时间: 2011-6-4 23:45:16
