标题: CFM56-7 Scorecard Data through April 2002 [打印本页] 作者: 航空 时间: 2011-4-12 11:09:21 标题: CFM56-7 Scorecard Data through April 2002
作者: 航空 时间: 2011-4-12 11:10:00
CFMI PROPRIETARY INFORMATION Data through April 2002 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: 12,662,532 Cycles: 6,589,450 Engines: 2,333 Aircraft 1,096 Issue Status • Oil/Fuel Delta P Switch • Fan Disk • Platform Aft Pin • N1 Vibration - Flight Line • EEC • HPT Blades • HMU - FMV • MSV position faults • EEC Ram Corruption • VBV Guide Pad Delamination CFM56-7 Scorecard Total IFSD Rate Goal 0.003 Current 0.003 Total ATO Rate Goal 0.020 Current 0.029 Total SV Rate Goal 0.100 Current 0.026 Total UER rate Goal 0.040 Current 0.014 Leading Indicators Booster Abradable Vane Corrosion LPT2 Nozzle Cracking AGB axial link (spherical bearing) Y Y Y Y R G G Y Y Y CFMI PROPRIETARY INFORMATION Data through April 2002 • Air Algerie (7) • Air Berlin (25) • Air China (7) • Air Europa (13) • Air Pacific (3) • Alaska (21) • Aloha (5) • Amiri Flight (4) • American (76) • American Transair (18) • ARAMCO (3) • Braathens (11) • Britannia (5) • BWIA (6) • City Bird (3) • Continental (122) • COPA (8) • China Airlines (9) • China Southwest (7) • China Wuhan (2) • China Yunnan (3) • Delta (68) • Easyjet (10) • Excel (7) • El Al (5) • Euralair (6) • Futura (7) • Germania (10) • GOL Transportes (14) • Hainan (7) • Hamburg Intl (3) • Hapag-Lloyd (27) • Helios Airways (2) • Jet Airways (20) • Kibris (3) • KLM (17) • Korean (17) • Lauda (6) • LAPA (8) • Maersk (9) • Mandarin (3) • Midway (7) • Novair (3) • Pegasus (12) • Qantas (5) • RAM (9) • Ryanair (19) • Sahara (4) • SAS (53) • Shanghai (9) • Shenzen (8) • South African (16) • Southwest (118) • Sterling (6) • Suncountry (6) • Sunexpress (6) • TAROM (2) • Transaero (2) • Transavia (11) • THY (25) • Tunis (7) • US Navy (4) • Varig (7) • Virgin Blue (10) • Westjet (5) • Xiamen (7) • Xinjiang (4) • BBJ (67) • Others (33) 737-6/-7/-8/-900 Customers and Fleet Size CFMI PROPRIETARY INFORMATION Data through April 2002 Age Distribution - Hours 0 50 100 150 200 250 300 0 50 100 150 200 250 300 Number of Engines ETSN Distribution CFMI PROPRIETARY INFORMATION Data through April 2002 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 April 2002 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 IFSD Causes - Total Last 12 MonDtahtasthrough April 2002 Cause Quantity Corrective Action Oil Temperature Sensor 3 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 No 4 brg 2 New outer race material 3 rd Qtr 02 Radial Drive Shaft 1 Root cause not found; Closed Separation Starter Failure (P08) 1 Turbine thrust bearing - one case since EIS Engine Controls 1 EEC PSS flex failure CH B (CFMSB 73-0065) along with a VSV out of range fault on CH A of the HMU Engine controls 1 Eng. remained at at 85% N1 when commanded to idle - EEC RA Corruption - S/W version 7.B.O to introduce accommodation Control Alternator 1 Control alternator cover crack - oil loss (Could not be duplicated in lab testing - 1 occurrence in 13,000 alternators. AGB Hand Cranking Brg 1 Under investigation, awaiting findings Data for total rate: Lightening strike 1 Engine stalled due to lightening induced airflow disruption Pilot cut fuel to engine. FOD - Bird Strike 1 No Active Program DMS Detector 1 DMS detector not completely engaged: Spool valve o-ring damaged Maintenance 1 Hand cranking pad not installed - Oil loss CFMI PROPRIETARY INFORMATION Data through April 2002 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 through April 2002 Aborted Takeoff Causes - Last 12 months Cause Quantity Corrective Action Data for basic rate: MSV position fault 8 Dual current software approach S/W 7.B.N July 02 Eng Control light (-2) 3 Fleet highlights published, maintenance hand book (No faults recorded) developed to aid mtc with FMC-CDU interrogation TBV Position fault 3 EHSV design improvements incorp’d 4th Qtr 02; S/W Accommodation being considered Fuel Filter DP 1 New FFDP design P/N QA7995 field penetration progressing .. further mechanical switch improvements being evaluated. Software accommodation under consideration HMU - FMV 1 Corrective action for 11 out of 12 failure modes defined Rotor winding improvements 4th Qtr 02 Eng Control light 1 HPTACC TC fault - 7.B.M1 SB 73-064 Issued Oil Pressure Sensor 1 Under Investigation HMU - No response to 1 Manufacturing defect in HMU’s shutoff shuttle valve thrust lever input Population capped; approved plan to inspect at HMU shop visit N2 Overspeed indication 1 N2 Speed Sensor replaced Fan Blade Platform 1 Fan blade platform pin torque check SB to issue July 2002; Repetitive re-torque under-consideration Data for total rate: Bird strike (1) 4 N/A Operation 6 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) 4 Ref regulator improvements in work - 2nd qtr 2002 Misc A/C Indications 3 Thrust Reverser, Speed Brake, Cargo Door Yaw During Take Off Roll 1 Left MLG Brake did not release CFMI PROPRIETARY INFORMATION Data through April 2002 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 200203 Shop Visit per 1K hours 12 Month Rolling Average CFMI PROPRIETARY INFORMATION Data through April 2002 Shop Visit Top Causes - Total engine Last 12 months Cause Quantity Corrective Action LPT Blade 46 DAC unique. Control actions in place. New blade 3rd 02 Proactive No 4 brg removal 8 Bearings from suspect lot of 47 Maintenance 6 N/A FOD/Other 7 N/A HPT Blade Blade Evaluation 5 Sampling program to evaluate HPT blade shank cracks Trailing edge cracks (2) 7 SB 72-115 R1 issued to retire P05 blades at first shop visit. SB 72-326 recommends a 1000 cycle BSI interval HPT blade TE (1) 3 Manufacturing process change (new core dies) - Identification of airfoil material loss population in process. HPT Blade separation 1 Telemetry testing on-going Fan Disk replacement 5 CESM 005 and S/B 72-253 issued. Testing planned for expand limits further TEO sensor 3 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 VBV Pad disbondment 4 EEC software improvements 3 Qtr 02 (7.B.N). Exploring mechanical fastening since failure in non-suspect population occurred AGB hand cranking pad (1) 4 Population defined. Imbalance in grinding tool root cause. Bearing replacement at shop visit - SB brg issued No. 3 Bearing 3 No active program No. 4 Bearing 3 New outer race material 3rd Qtr 02 Fan Blade Platform (1) 4 Fan blade platform pin torque check SB to issue July 2002; Repetitive re-torque under-consideration CFMI PROPRIETARY INFORMATION Data through April 2002 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 200203 UERs per 1k hours CFMI PROPRIETARY INFORMATION Data through April 2002 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 200203 Successful Departures 12 Month Rolling Average CFMI PROPRIETARY INFORMATION Delay and Cancellation Top CauseDasta through April 2002 (basic engine last 12 months) Cause Quantity Corrective Action HMU: 1st QTR MTBUR up to 14,000 hours - HPSOV 67 Field program underway - No switch faults - FMV 42 Corrective action for 11 out of 12 failure modes defined Rotor winding improvements 4th Qtr 02 - TBV 27 EHSV design improvements incorp’d 4th Qtr 02; S/W Accommodation being considered - MSV 12 Dual current software approach (3Q’02) Ignition System 43 Ignition lead/exciter ... no anomalies Power switching relay available for Aircraft incorp. Soft time recommendation not universally incorp’d Utilize improved EEC S/W troubleshooting capability - Fleet Highlights published Feb 02 Starter 37 P09 introduction July 02 - Carbon Seal (in-service leakage allowance in work); P10 - turbine stack improvements Sept 02 EEC 29 PSS modification SB 73-065. Improved ATP in place. Program improvements being monitored Fuel delta pressure switch 27 Potted switch improvement S/B 73-042 1 flight allowance added to DDPG MMEL PALL offering discount on switch upgrade Software accommodation under consideration Oil delta P switch 22 Under Investigation N1 Vibration 16 Vibration Maint. Action published - CESM 007 issued Engine Control light 14 Fleet highlights published, maintenance hand book developed (No fault code) to aid mtc with FMC-CDU interrogation HPTACC Valve 11 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 April 2002 CFM56-7B Revenue Service Status Entry into service December 1997 Operators/aircraft in service 115/1096 Cumulative engine hours/cycles 12,662,532/ 6,589,450 Daily utilization hours/cycles 9.5/4.9 Average flight leg 1.88 High time and cycle engines: hours/cycles 17,687 / 11,020 Total SVR (per 1,000 EFH) .026 Total IFSD rate (per 1,000 EFH) .003 Dispatch reliability 99.96 Meeting or Exceeding Reliability Goals作者: doxingpu 时间: 2011-4-12 11:31:19
CFM56-7 Scorecard Data through April 2002作者: 979199501 时间: 2011-4-12 14:20:21 标题: 回复 1# 航空 的帖子
