Preliminary Requirements

Procedure

1. SUBTASK 72-32-85-350-094 Prepare the Bonding Surfaces

   1. Refer to Figure, Figure and Figure.

   2. 
      CAUTION
      DO NOT USE TAP WATER OR MINERAL WATER. YOU MUST USE DISTILLED OR DEIONIZED WATER DURING THE WATER-BREAK INSPECTION.

      Prepare the bonding surface, refer to Figure and Figure.

      1. 
         WARNING
         DO NOT OPERATE WITHOUT SAFETY GOGGLES AND OTHER GUARDS EQUIPMENT. FLYING PARTICLES CAN CAUSE INJURY.
         
         CAUTION
         DO NOT USE POWERED TOOLS WITH STEEL CHISEL OR SIMILAR BITS.
         
         CAUTION
         THE FAN CASE IS MADE FROM TITANIUM ALLOY AND IS THIN IN SOME AREAS. IF YOU HIT THE FAN CASE WITH A CHISEL OR SCRAPER YOU CAN MAKE IT UNSERVICEABLE.
         
         CAUTION
         YOU MUST USE THE CHISEL, SHARP BLADE OR SCRAPER IN A CIRCUMFERENTIAL DIRECTION TO PREVENT THE EDGES OF THE BLADE SCORING THE FAN CASE.
         
         CAUTION
         YOU MUST ALWAYS TRY TO POINT THE CHISEL OR SHARP BLADE PARALLEL WITH THE SURFACE OF THE FAN CASE.

         Remove most of the damaged linings.

         1. Use air hammer or flux chipper with aluminum chisel.

         2. Refer to Figure.

      2. 
         CAUTION
         PREVENT TOO MUCH SURFACE ABRASION OF THE FAN CASE MATERIAL. SURFACE FINISH USING ABRASIVE BLASTING IS NECESSARY. THIS WILL GIVE THE BEST BONDING RESULTS.
         
         CAUTION
         HAND DRESSING TOOLS ARE NOT TO BE USED AT THE SAME LOCATION. DO NOT DWELL IN ONE AREA OR ANY AREA.

         Remove the remaining unwanted material and adhesive on the case.

         1. Use CoMat 05-185 POLISHING DISCS or CoMat 05-186 CONDITIONING DISCS with air grinder to the case.

         2. Make sure the new replacement linings can be placed in the position shown in Figure.

      3. 

         WARNING

         AIR BLASTS CREATE FLYING PARTICLES. YOU MUST USE SAFETY SHIELD AND OTHER PROTECTIVE EQUIPMENT. FLYING PARTICLES CAN CAUSE EYE INJURY.

         Remove the remaining debris with dry air blast and/or vacuum cleaner.

      4. 
         WARNING
         ALWAYS MAKE SURE THAT THERE IS SUFFICIENT VENTILATION IN THE WORK AREA.
         
         WARNING
         PROTECTIVE CLOTHING, FACE MASKS AND EYE PROTECTION MUST ALWAYS BE USED.
         
         WARNING
         DO NOT LET SOLVENT CLEANER OR ITS VAPOURS TOUCH YOUR EYES OR SKIN.
         
         WARNING
         ALWAYS KEEP OPEN FLAMES AWAY FROM THE WORK AREA.
         
         WARNING
         IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.

         Degrease the repair area.

         1. Refer to SPM TASK 70-11-26-300-503.

      5. Inspect the repair area.

         1. Examine the surface.

         2. Any nicks, dents, scratches and gouges, repair it.

         3. If necessary, do repair, VRS1805 TASK 72-32-85-300-042 (REPAIR-042) and/or VRS1818 TASK 72-32-85-300-044 (REPAIR-044).

      6. Mask the non-bonding area.

         1. Mask-off all areas except the bonding area using CoMat 02-224 SILICONE ADHESIVE POLYESTERTAPE.

      7. 
         WARNING
         A PRESSURIZED AIR STREAM CAN CAUSE INJURY. WEAR SAFETY GOGGLES AND PROTECTIVE CLOTHING.

         Make the repair area rough.

         1. Use CoMat 05-003 ABRASIVE MEDIUM ALUMINUM OXIDE, 120/220 GRADE with the blasting equipment.

         2. Remove the glossy surface from the repair area of the fan case.

         3. Ensure that a constant matt surface is maintained.

         4. Operate vacuum sand blaster at approximately 70 psi to 100 psi (480 Kpa to 690 Kpa).

         5. If you use the pressure blaster to remove the glossy surface from the repair area, optimum distance between the nozzle and the repair surface is 5 in. to 15 in. (127 mm to 381 mm).

         6. Do the procedure given in SPM TASK 70-36-02-360-501.

         7. Do not use abrasive paper or equivalent.

      8. Remove any remaining debris.

         1. Use a vacuum cleaner.

      9. Immediately blow out the area.

         1. Use oil free dry air.

   3. Water-break inspection of the repair area.

   4. Refer to SPM TASK 70-36-02-360-501.

2. SUBTASK 72-32-85-360-095-001 Bond the Replacement Linings (Vacuum Bag Method)

   1. Refer to Figure, Figure, Figure and Figure.

   2. 
      WARNING
      ALWAYS MAKE SURE THAT THERE IS SUFFICIENT VENTILATION IN THE WORK AREA.
      
      WARNING
      PROTECTIVE CLOTHING, FACE MASKS AND EYE PROTECTION MUST ALWAYS BE USED.
      
      WARNING
      DO NOT LET SOLVENT CLEANER OR ITS VAPOURS TOUCH YOUR EYES OR SKIN.
      
      WARNING
      ALWAYS KEEP OPEN FLAMES AWAY FROM THE WORK AREA.
      
      WARNING
      IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.

      Degrease the replacement linings and casing, refer to Figure, Figure, Figure and Figure.

      1. 

         WARNING

         DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A FACE MASK. USE THE CLEANING FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE VAPOR. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

         NOTE

         Always pour cleaning fluid on the cloth to avoid contaminating the cleaning fluid supply. Wash one small area at a time.

         NOTE

         It is important that the surface is dried with a second clean cloth prior to the cleaning fluid evaporating to prevent the redesposition of contaminants on the fan case surface.

         Remove all grease from the repair area.

      2. Refer to SPM TASK 70-11-26-300-503.

   3. Apply adhesion promoter, refer to Figure, Figure, Figure and Figure.

      1. 
         WARNING
         YOU MUST FIND AND OBEY THE MANUFACTURER'S HEALTH AND SAFETY DATA FOR THE MATERIAL (MSDS). YOU MUST ALSO REFER TO LOCAL REGULATIONS TO MAKE SURE THAT THE PROCEDURES ARE DONE SAFELY. IF YOU SO NOT DO THIS, AN INJURY OR ENVIRONMENTAL DAMAGE CAN OCCUR.

         NOTE

         If primed surface is contaminated or bonding is not accomplished within 8 hours after application of the adhesion promoter, repeat priming procedure (Step and Step).

         Apply the primer.

         1. Apply a thin coat of CoMat 08-155 ADHESION PROMOTER to the cleaned surface by brush or clean gauze and allow to dry for approximately 30 minutes at room temperature.

   4. Apply the sealant, refer to Figure, Figure, Figure and Figure.

      1. 
         WARNING
         YOU MUST FIND AND OBEY THE MANUFACTURER'S HEALTH AND SAFETY DATA FOR THE MATERIAL (MSDS). YOU MUST ALSO REFER TO LOCAL REGULATIONS TO MAKE SURE THAT THE PROCEDURES ARE DONE SAFELY. IF YOU DO NOT DO THIS, AN INJURY OR ENVIRONMENTAL DAMAGE CAN OCCUR.
         
         CAUTION
         DO NOT USE CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER SEALANT (PR2001B-1/2). THIS MATERIAL IS 30 MINUTES APPLICATION LIFE TYPE SEALANT. THIS BONDING STEP IS ESTIMATED TO TAKE MORE THAN 1 HOUR WHEN DONE BY SKILLED MECHANICS FAMILIARIZED WITH THIS APPLICATION PROCEDURE.

         NOTE

         You must use the plastic gloves, during preparation and use of the sealant, to prevent contamination of the skin.

         NOTE

         Application life is dependent upon ambient environmental conditions. Increases in temperature and low humidity will shorten application time. Conversely, lower temperatures and high humidity will increase application life. For the examples, the life of the mixed sealant is approximately 2 hours, at 77 deg F (25 deg C) and 50 percent relative humidity.

         Prepare the sealant.

         1. Use CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER. Weigh out 100 parts of base compound (white compound) and 18.5 parts of curing compound (black compound). When using SEMKIT form sealant, prepare either by hand, or using a mixing machine as described in the manufacturer's leaflet. Mix the two parts by kneading until the color of compound is constant quality. No streaks permitted.

      2. NOTE

         In order to ensure that acoustic area of the panel honeycomb has contact with the surface of the sealant it is necessary to apply the sealant to the maximum specified thickness 0.118 in. (3.0 mm). The sealant layer thickness must not fall below the specified minimum 0.079 in. (2.0 mm).

         NOTE

         Wear lint free gloves (CoMat 02-097 LINT-FREE GLOVES) or white nylon gloves (CoMat 02-100 GLOVES, LINT-FREE) when you touch the parts.

         Apply the sealant to the bonding surfaces.

         1. Use a putty knife or airpowered sealant gun to apply the sealant to mating surfaces of both components to a thickness of between 0.079 in. and 0.118 in. (2.0 mm and 3.0 mm).

   5. Install the replacement linings, refer to Figure, Figure, Figure and Figure.

   6. NOTE

      Wear CoMat 02-097 LINT-FREE GLOVES or CoMat 02-100 GLOVES, LINT-FREE when you touch the parts.

      Put the replacement linings in position and hold with the tape.

      1. Wear CoMat 02-097 LINT-FREE GLOVES or CoMat 02-100 GLOVES, LINT-FREE and use CoMat 02-224 SILICONE ADHESIVE POLYESTERTAPE.

   7. Secure the replacement linings.

   8. Make-up an annular vacuum bag.

      1. Cover the replacement linings with a sheet of CoMat 02-334 POROUS RELEASE FILM that is 3.00 in. (76.2 mm) longer than each end of the linings, 3 plies of CoMat 02-166 BREATHER CLOTH and one ply of CoMat 02-223 RELEASE FILM.

      2. Over them spread a CoMat 02-222 BAGGING FILM between the area of the anti-ice impact panels and the metal surfaces of the fan case.

      3. Seal the edges of the bagging film to the anti-ice impact panels and the metal surface of the fan case with CoMat 02-225 TAPE, VACUUM BAG SEALANT.

   9. Evacuate the air from the vacuum bag and check for leaks audibly or with the ultrasonic leak detector.

      1. Use the vacuum pump and the ultrasonic leak detector.

   10. Apply and maintain a vacuum of 10.2 psi (70 kPa). This must be maintained during cure time.

   11. 
       CAUTION
       THE MAXIMUM TEMPERATURE WHICH CAN BE USED TO CURE THE ADHESIVE IS 176 DEG F (80 DEG C).

       NOTE

       Make sure that you monitor the ambient temperature of the sealant and work area with suitable instruments, across all of the lining.

       NOTE

       Make sure the full cure time is used and correct temperature maintained.

       NOTE

       If the curing process is applied for 48 hours at 50 deg F (10 deg C) or more the necessary strength has been secured, regardless of the level of humidity.

       Cure the sealant.

       1. Allow the CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER to cure for 9 hours at ambient temperature 77 deg F to 95 deg F (25 deg C to 35 deg C).

       2. Cure may be hastened by applying heat. CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER can obtain a serviceable cure hardness after four hours at 113 deg F (45 deg C).

       3. If the remaining sealant material after repair exceeds the limit, dress the sealant material with CoMat 05-020 WATERPROOF SILICON CARBIDE, if necessary.

   12. Remove the vacuum bag.

3. SUBTASK 72-32-85-360-095-002 Bond the Replacement Linings (Fixture Retaining Method)

   1. Refer to Figure, Figure and Figure.

   2. 

      WARNING

      ALWAYS MAKE SURE THAT THERE IS SUFFICIENT VENTILATION IN THE WORK AREA.

      

      WARNING

      PROTECTIVE CLOTHING, FACE MASKS AND EYE PROTECTION MUST ALWAYS BE USED.

      

      WARNING

      DO NOT LET SOLVENT CLEANER OR ITS VAPOURS TOUCH YOUR EYES OR SKIN.

      

      WARNING

      ALWAYS KEEP OPEN FLAMES AWAY FROM THE WORK AREA.

      

      WARNING

      IT IS THE RESPONSIBILITY OF THE OPERATOR TO OBTAIN AND OBSERVE THE MANUFACTURERS MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIALS INFORMATION SUCH AS, HAZARDOUS INGREDIENTS, PHYSICAL/CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, USE AND CONTROL MEASURES AND ALSO TO TAKE LOCAL REGULATIONS INTO CONSIDERATION.

      Degrease the replacement linings and casing, refer to Figure, Figure and Figure.

   3. Remove all grease from the linings and casings.

      1. Refer to SPM TASK 70-11-26-300-503.

   4. 
      WARNING
      DO NOT GET CLEANING FLUID ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GOGGLES AND A FACE MASK. USE THE CLEANING FLUID IN A WELL VENTILATED AREA. DO NOT BREATHE THE VAPOR. IF YOU GET THE FLUID ON YOUR SKIN OR IN YOUR EYES, FLUSH IT AWAY WITH WATER. GET MEDICAL AID IF YOUR SKIN OR EYES BECOME IRRITATED.

      NOTE

      Always pour cleaning fluid on the cloth to avoid contaminating the cleaning fluid supply. Wash one small area at a time.

      NOTE

      It is important that the surface is dried with a second clean cloth prior to the cleaning fluid evaporating to prevent the redesposition of contaminants on the fan case surface.

      Apply adhesion promoter, refer to Figure, Figure, Figure.

      1. 
         WARNING
         YOU MUST FIND AND OBEY THE MANUFACTURER'S HEALTH AND SAFETY DATA FOR THE MATERIAL (MSDS). YOU MUST ALSO REFER TO LOCAL REGULATIONS TO MAKE SURE THAT THE PROCEDURES ARE DONE SAFELY. IF YOU DO NOT DO THIS, AN INJURY OR ENVIRONMENTAL DAMAGE CAN OCCUR.

         NOTE

         If primed surface contaminated or bonding is not accomplished within 8 hours after application of the adhesion promoter, repeat priming procedure.

         Apply the primer.

         1. Apply a thin coat of CoMat 08-155 ADHESION PROMOTER to the cleaned surface by brush or clean gauze and allow to dry for approximately 30 minutes at room temperature.

   5. Apply the sealant, refer to Figure, Figure and Figure.

      1. 
         WARNING
         YOU MUST FIND AND OBEY THE MANUFACTURER'S HEALTH AND SAFETY DATA FOR THE MATERIAL (MSDS). YOU MUST ALSO REFER TO LOCAL REGULATIONS TO MAKE SURE THAT THE PROCEDURES ARE DONE SAFELY. IF YOU DO NOT DO THIS, AN INJURY OR ENVIRONMENTAL DAMAGE CAN OCCUR.
         
         CAUTION
         DO NOT USE CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER SEALANT (PR2001B-1/2). THIS MATERIAL IS 30 MINUTES APPLICATION LIFE TYPE SEALANT. THIS BONDING STEP IS ESTIMATED TO TAKE MORE THAN 1 HOUR WHEN DONE BY SKILLED MECHANICS FAMILIARIZED WITH THIS APPLICATION PROCEDURE.

         NOTE

         You must use the plastic gloves, during preparation and use of the sealant, to prevent contamination of the skin.

         NOTE

         Application life is dependent upon ambient environmental conditions. Increases in temperature and low humidity will shorten application time. Conversely, lower temperatures and high humidity will increase application life. For the examples, the life of the mixed sealant is approximately 2 hours, at 77 deg F (25 deg C) and 50 percent relative humidity.

         Prepare the sealant.

         1. Use CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER. Weigh out 100 parts of base compound (white compound) and 18.5 parts of curing compound (black compound). When using SEMKIT form sealant, prepare either by hand, or using a mixing machine as described in the manufacturer's leaflet. Mix the two parts by kneading until the color of compound is constant quality. No streaks permitted.

      2. NOTE

         In order to ensure that acoustic area of the panel honeycomb has contact with the surface of the sealant it is necessary to apply the sealant to the maximum specified thickness 0.118 in. (3.0 mm). The sealant layer thickness must not fall below the specified minimum 0.079 in. (2.0 mm).

         NOTE

         Wear lint free gloves (CoMat 02-097 LINT-FREE GLOVES) or white nylon gloves (CoMat 02-100 GLOVES, LINT-FREE) when you touch the parts.

         Apply the sealant to the bonding surfaces.

      3. Use a putty knife or airpowered sealant gun to apply the sealant to mating surfaces of both components to a thickness of between 0.079 in. and 0.118 in. (2.0 mm and 3.0 mm). Make sure that the drainage slots have not been blocked by the adhesive.

   6. Install the replacement linings, Refer to Figure, Figure and Figure.

   7. NOTE

      Wear CoMat 02-097 LINT-FREE GLOVES or CoMat 02-100 GLOVES, LINT-FREE when you touch the parts.

      Put the replacement linings in position and hold with the tape.

      1. Wear CoMat 02-097 LINT-FREE GLOVES or CoMat 02-100 GLOVES, LINT-FREE and use CoMat 02-224 SILICONE ADHESIVE POLYESTERTAPE.

   8. Secure the replacement linings.

      1. Use IAE 3J13053 Fixture, bonding 1 off and IAE 3J13055 Fixture, bonding.

   9. 
      CAUTION
      THE MAXIMUM TEMPERATURE WHICH CAN BE USED TO CURE THE ADHESIVE IS 176 DEG F (80 DEG C).

      NOTE

      Make sure that you monitor the ambient temperature of the sealant and work area with suitable instruments, across all of the lining.

      NOTE

      Make sure the full cure time is used and correct temperature maintained.

      NOTE

      If the curing process is applied for 48 hours at 50 deg F (10 deg C) or more the necessary strength has been secured, regardless of the level of humidity.

      Cure the sealant.

      1. Allow the CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER to cure for 9 hours at ambient temperature 77 deg F to 95 deg F (25 deg C to 35 deg C).

      2. Cure may be hastened by applying heat. CoMat 08-154 SEALANT, TWO PART, EPOXY-CURED POLYTHIOETHER can obtain a serviceable cure hardness after four hours at 113 deg F (45 deg C).

      3. If the remainig sealant material around the repair area exceeds the dimensional limits, dress the sealant material with CoMat 05-020 WATERPROOF SILICON CARBIDE, if necessary.

   10. Remove the bonding fixture.

4. SUBTASK 72-32-85-360-096 Fill the Gap Around the Replacement Linings

   1. Refer to Figure, Figure and Figure.

   2. Prepare the filler.

      1. Use CoMat 08-006 FILLER, TWO PACK.

      2. Refer to SPM TASK 70-36-02-360-501.

   3. Apply the filler in to the gap around the replacement linings, refer to Figure and Figure.

      1. Slightly overfill using the putty knife or equivalent.

      2. Make sure that the repair area is fully filled with no air pockets.

      3. The gradual setting of the filler will support the newly applied filler.

      4. If any sagging is apparent, locally produced supports will be necessary.

   4. NOTE

      Do not use too much water because it will cause the filler to plasticize.

      If necessary to get smooth finish, apply small quantity of cold water to the tool to make it moist.

      1. Use the putty knife.

   5. Remove unwanted filler.

      1. Remove all unwanted filler, when it starts to feel hard.

      2. Use the putty knife or the scraper to get burnished effect.

   6. 
      CAUTION
      THE MAXIMUM TEMPERATURE WHICH CAN BE USED TO CURE THE FILLER IS 140 DEG F (60 DEG C).

      Cure the filler.

      1. 

         CAUTION

         THE MINIMUM CURE TIME IS ONE HOUR. DO NOT CURE AT A TEMPERATURE LESS THAN 54 DEG F (12 DEG C).

         NOTE

         Make sure the full cure time is used, and correct temperature maintained.

         The cure times and temperatures given in Figure.

5. SUBTASK 72-32-85-360-097 Seal the Gap of the Replacement Linings

   1. Refer to Figure and Figure (See detail C, D, and E).

   2. Prepare the sealant material.

      1. Use CoMat 08-024 SEALANT 75 parts of base compound and 10 parts of curing compound (accelerator) by weight.

      2. Mix the two parts by kneading until the color of compound is constant quality.

      3. No streaks permitted.

   3. 
      CAUTION
      DO NOT PUT THE SEALANT IN THE WATER DRAINAGE SLOTS.

      NOTE

      You must use the plastic gloves, during preparation and use of the sealant, to prevent contamination of the skin.

      NOTE

      The life of the mixed sealant is approximately half an hour, at 77 deg F (25 deg C).

      Apply sealant material, refer to Figure and Figure (See detail C, D, and E).

      1. Fill the sealant in the slots with the putty knife.

   4. Remove unwanted sealant.

      1. Remove all unwanted sealant, when it starts to feel hard.

   5. 
      CAUTION
      THE MAXIMUM TEMPERATURE WHICH CAN BE USED TO CURE THE SEALANT IS 120 DEG F (49 DEG C).

      NOTE

      The minimum cure time is 1.5 hours. Sealant cure time is with relative humidity of 50 percent.

      NOTE

      Make sure the full cure time is used, and correct temperature maintained.

      Cure the sealant.

      1. Cure the sealant for 10 hours at 77 deg F (25 deg C) or 1.5 hours at 113 deg F (45 deg C).

6. SUBTASK 72-32-85-220-144 Examine the Repaired Area

   1. Refer to Figure, Figure, Figure and Figure.

   2. Visually and dimensionally examine the repaired area, refer to Figure, Figure, Figure and Figure.

      1. Make sure that the surface of the filler is flat and smooth.

      2. Step is acceptable if less than 0.02 in. (0.5 mm).

      3. Visually examine the slots between the acoustic linings. Make sure that the drain holes are not blocked.

      4. If necessary, do this TASK again.

   3. Examine the replacement linings and do a check for indications of lack of bond by pressing or tapping.

      1. If lack of bond is apparent, do this TASK again.

7. SUBTASK 72-32-85-350-149 Identify the Repair

   1. Mark VRS1842 adjacent to the part number.

      1. Use the vibration peen method.

      2. Make a permanent mark by the procedures in SPM TASK 70-09-00-400-501.

Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions



Figure: Repair Details and Dimensions

Repair Details and Dimensions