WORK SCORP894690 Workscope

Engine Serial No：894690Removal Date：16-Aug-2013Engine Type：CFM56-7B22/3Reason for Removal：HPTN Crack1. ENGINE BACKGROUNDA. On 16th Aug, 2013, Engine 894690 will be removed with EGTM at approximately 90 degree from XinJiang Branch B-5241RH7B22.B. This engine is 1st shop visit. 2. REMOVAL REASONHPT Nozzle Crack3. ENGINE SUMMARY STATUSModelS/NA/C Pos.TSN / CSNTSR / CSRCFM56-7B22894690B-5241RH21800Hrs/9900Cycs(est)N/AFan ModuleCore ModuleLPT ModuleAGBTGB2122612331323341425152535455566362MWN/AN/AMWTSO1TSO2TSO2TSO1TSO1TSO2TSO1TSO2MWMWMWTSO1MW4. SHOP VISIT REQUIREMENTSa) FAA AND DGAC Airworthiness Directives: Comply with all ADs and CADs as applicable.b) Requirement for EGTM:At least 45 degree7B26 require this time. Production test cell was 71 degree 7B26.The engine should be tested under 22k, 24k, 26k thrust level.c) Requirement for On-Wing Life:The expected on-wing time of this engine shall be above 8500 cycles 7B26d) Scrapped parts and units:The rework agency should provide a list of all the scrapped parts and units. The disposition of these parts and units should be decided by both the facilities and CSN after discussion.e) Repairable parts and new parts:The rework agency will provide a list of all the repairable part, including the price of those parts, repair cost and etc. If it is necessary to exchange with other parts, please notify China Southern Engineering Department of the action in advance. If some parts have been replaced with a new one or exchanged, please provide the FAA 8130 tag and other related record to keep a good traceability.f) Life Limit Parts:If rework agency dont get an approval of the Engineering Department of CSN, rework agency must reinstall any original life limit part on this engine except the scrapped parts.g) Incorporation of Service Bulletins:l All of the Service Bulletins listed in this workscope are intended to ensure all outstanding FAA AD, baseline SBs are incorporated.l All the concurrent requirements associated with each Service Bulletin listed in this workscope shall be incorporated at the same time.h) HPT Blade In-Shop Use Policyl Install latest production of new HPT blades for overhaul engine.l Intermix restriction:1) 1957M10P01 and prior are not allowed to be installed on CSN engines.2) If 2100M96P0X used parts to be installed, the largest cycle difference between the installed blades must be less than 3000.3) Soft time 25,000 cycle control.4) Discuss with CSN case by case.i) Additional Requirements:l All the In Service Squawks are to be corrected.l Provide all the shop findings in details in the form of highlight report to CSN engineering, including but not limited to, PN, SN, corrective actions (Repair Schemes) and the associated repair cost; number of scrapped parts, reason of scrap page, and the unit price of the replacement. l FAA Form 8130-3 and CAAC Serviceable Tag must be included with the records packageCopies of FAA Form 8130-3 and /or CAAC AAC-038 Serviceable tags for all major components should be included with the records package. 5. WORKSCOPE:l The workscope of this engine is defined by CSN, which should be accomplished in accordance with the CFM56-7B WPG revision 7, June 2012, and applicable Engine Shop Manual . Any upgrade for this workscope must be approved by CSN powerplant engineer unless otherwise stated.ALL TECHNICAL REVISIONS AND/OR REMVOMENDATIONS WILL SHOW UP IN THIS WORKSCOPE AS SHADED SECTION. AFTER ENGINES BEING REPAIRED, SHOP VISIT REPORT AND THE INVOICES RECEIVED, WHICH DO NOT MEET THE REQUIREMENTS AS PROVIDED FOR, UNLESS OTHERWISE STATED, WILL NOT BE ACCEPTED. ANY DELAYS OR INCONVENIENCE THEN CAUSED WILL BE DEEMED TO BE OF REPAIR FACILITIES RESPONSIBILITIES. 6. ApprovalIssued: Reviewed:By:张志峰Print:Zhang ZhifengTitle:Powerplant EngineerDate:July 25th, 2013By:陈瑞武Print:Chen RuiwuTitle:EMC-GP Fleet ManagerDate:July 25th , 2013Approved:Approved:By:Print:Title:VP, ENGINEERINGDate:By:Print:Jason WangTitle:Director, EMCDate: A. Modules Workscope InstructionENGINE MODULESSBsFan Major Module Fan and BoosterI. Inspect the fan disk fwd lug wear with 856A4640 per SB72-0534.II. Inspect the fan disk dovetail slot pressure face wear with special tool 856A4633G02 per SB72-0525.III. Inspect and rework the fan retaining flange refer to SB72-0366 as necessary.IV. Confirm fan blade platforms P/N is -814 or -816. Inform EMC if -817 fan blade platform should be replaced per 72-0909 will perform.V. Replace axial stop pin by new part refer to 72-0678.SB72-0534SB72-0525SB72-0366SB72-067872-21-00LEVELMINIMUMNo.1 and No.2 Bearing SupportI. Do inspection of No.1 and No.2 bearing support exposed area for leakage or damage; replace the related seals per request.72-22-00LEVELN/AInlet Gearbox and No.3 bearingI. Do a detail visual inspection of exposed area of IGB.II. Introduce new stationary seal with improved adhesive per SB72-0574Note: The #3 bearing locknut cutting must get an approval of the EMC of CSN.SB72-057472-61-00LEVELN/AFan Frame AssemblyI. Do a detailed visual inspection of fan case bolt hole for elongation.II. Do an inspection of fan case B1 flange lug for crack, replace the old bracket with new part 332A2920-229.III. Rework MW0311 electrical harness refer to SB 72-0779IV. Replace the fuel tube with a new part number 340-021-004-0 refer to SB72-0700.V. Introduction of New Air Tube, a New Bracket Assy with Safety Wire Holes and Rework of the Previous ConfigurationVI. Introduce new design oil supply tube refer to SB 79-0030.VII. Introduction of three bracket assy refer to SB 72-0744.VIII. Introduction of PS3 signal tube bracket per SB75-0038.IX. Introduce new part number bolt on HPTACC fuel manifold refer to SB 72-0725.X. Introduce new bolts to maintain the CJ9 and CJ10 with reduced torque value per SB73-0114.XI. Rework the B1 flange per SB72-0580.XII. Introduce new bolt to attach the MW0325 harness per SB 73-0822.XIII. Inspect HMU fuel tubes attach bolts and replace with correct bolts per AOW 12/CFM56/672XIV. Introduce of new spacers on the B6 front flange of the fan frame per SB 72-0569XV. Introduce new bracket refer to 72-0679.XVI. Inspect fan case flanges per Boeing SB 737-71-1682. SB72-0779SB72-0700SB72-0475SB79-0030SB72-0744SB75-0038SB72-0725SB73-0114SB72-0580SB73-0822SB72-0569SB72-0679737-71-168272-23-00LEVELMINIMUMCore Major Module Compressor RotorI. Partially disassembly for repair.II. Remove and inspect the HPC blades.III. Replace the stage 4-9 blade seal wire.IV. Measure/grind the tip radii using high-speed grind systemV. Inspect and repair the honeycomb seal, replace it per request.VI. Introduce of improved spool weights for spool 69 per SB 72-0343.VII. Perform HPC linipot inspection during vertical core assembly.SB72-034372-31-00LEVELPERFORMANCEFWD Stator ASSYI. Refurbish HPC interstage honeycomb.II. Inspect casing rub lands for positive material from airfoil rubs.III. Introduce new VSV IGV actuation ring to improve durability.SB72-081172-32-00LEVELOVERHAULCompressorRear Stator ASSYI. Remove the honeycomb seal segments.II. Inspect and repair the honeycomb seal, replace it per request.III. Refurbish HPC rear stator forward outer lip wear.72-33-00LEVELOVERHAULCombustion Case AssemblyI. Partially disassembly for inspection. II. Relocation of new CJ10 bracket per SB 72-0770.III. Replace the CDP seal with new or refurbished one.SB72-077072-41-00LEVELPERFORMANCECombustion ChamberI. Partially disassembly to repair the chamber.II. Pay attention to the fuel nozzle test to find the cause of burning.III. Replace new outer liner lug ring of outer liner per SB72-0647.SB72-064772-42-00LEVELPERFORMANCEHPT Nozzle AssemblyI. Piece-part disassembly for overhaul and repair.II. Replace new HPTN per SB72-0913 if new part should be installed.III. Inspect HPT Nozzle segments for cracking, burning, cooling hole blockage, and TBC spalling.IV. Replace the HPT outer stationary seal (3T seal) with a new or refurbished seal.V. Assure nozzle set area A41 is within ESM limit during assembling.Replace internal “W” seal.72-51-00LEVELOVERHAULHPT Rotor AssemblyI. Partially disassembly for inspection.II. Overhaul HPT blades. Replace new 2100M96P04 if scrapped.III. Verify that HPT FOS wire is not protruding out from under sealIV. Check the CDP seal bore run out during assembly to prevent future vibration problems.V. Replace the rotor seal wires with new hardware.VI. Perform HPT linipot inspections in both the vertical and horizontal positions.72-52-00LEVELPERFORMANCEHPT Shroud / Stage 1 LPT NozzleI. Refurbished HPT shrouds.II. Replace LPT stage 1 nozzle post 72-0734.III. Check the HPT shrouds diameters at six equally spaced location.IV. Check the HPT shrouds support T-flange aft end with the LPT case forward diameter to assure that a tight fit.V. Modify HPT stator shroud.SB72-0734SB72-073572-53-00LEVELOVERHAULLPT Major ModuleLPT Major ModuleI. Minimum level for repair refer to WPG and ESM.II. Inspect the LPT case rail “0” at module level per SB72-0608III. Introduce a new oil inlet cover o-ring per SB72-0543IV. Reidentify the LPT Case per SB72-0552.V. Inspect oil supply tube of No.5 bearing, clean oil coking as necessary.P/N:340-116-101-0;340-177-801-0; 340-178-001-0 VI. Inspect the scavenge tube nipple refer to SB72-0477. replace the nipple if any welding crack found refer to SB72-0499 VII. Protect the No.4 bearing against abrasives and contaminants per CESM 004 recommendations.VIII. Inspect the LPT shaft inner surface for oil coking, clean the oil coking as necessary.IX. Inspect oil supply tube of No.5 bearing, clean oil coking as necessary. P/N: 340-116-101-0; 340-177-801-0; 340-178-001-0.X. Introduce new silver planted nuts per SB72-0727 if exposed.XI. Re-weld aft air/oil separator welding point per SB72-0904.Report to EMC if heavy rubbing is found in this area.XII. Replace of performed packing o-ring per 72-0764 if