TASK 72-00-00-200-802 Engine General - Examine The HPC Stage 3 To 12 Rotor Blades, Special Procedures-002

DMC:V2500-A0-72-00-0000-00A-312A-B|Issue No:007.00|Issue Date:2019-02-01

Export Control

EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.

Copyright

© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).

Applicability

All

Common Information

TASK 72-00-00-200-802 Engine General - Examine The HPC Stage 3 To 12 Rotor Blades, Special Procedures-002

General

This TASK gives the procedure for the visual inspection of the stage 3 to 12 HP compressor rotor blades.

Nicks and dents on airfoils, 0.005 in. (0.127 mm) or less, are considered minor. Minor nicks and dents are acceptable. There is no limit to the number of minor nicks and dents allowed.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-00-00-210-051-A00 V2500-A1 ONLY Examine the Stage 3 HP Compressor Rotor Blades

    1. Refer to Figure, Figure and Figure.

      2. Zone A, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Nicks and tears up to 0.200 in. (5.08 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. In excess of above.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      3. Zone B, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm).

          1. Accept.

          2. More than Step.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      4. Clapper face contact.

        1. Less than 50 percent clapper face contact abutment area F, refer to Figure

        1. Reject

        2. Clapper overlap D, refer to Figure.

        1. Reject.

        3. Clapper face irregular wear C and D, refer to Figure.

        1. Reject.

      5. Zone C, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Nicks and tears up to 0.200 in. (5.08 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. In excess of above.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      6. Zone D, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm).

          1. Accept.

          2. More than Step.

          1. Reject.

      7. Blade tips.

        1. Missing piece.

        1. Reject.

        2. Discoloration (related to tip rub).

        1. Accept.

        3. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y, refer to Figure.

        1. Accept.

        4. Tip rub (not related to cracks and tears).

        1. Accept.

      8. All areas.

        1. Deposits.

          1. Light deposits of abradable atmospheric contamination.

          1. Accept.

    2. SUBTASK 72-00-00-210-051-B00 V2500-A5 ONLY Examine the Stage 3 HP Compressor Rotor Blades

    1. Refer to Figure, Figure and Figure.

      2. Zone A, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Nicks and tears not more than 0.200 in. (5.08 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      3. Zone B, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm).

          1. Accept.

          2. More than Step.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      4. Clapper face contact.

        1. Less than 50 percent clapper face contact abutment area F, refer to Figure

        1. Reject

        2. Clapper overlap D, refer to Figure.

        1. Reject.

        3. Clapper face irregular wear C and D, refer to Figure.

        1. Reject.

      5. Zone C, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Nicks and tears not more than 0.200 in. (5.08 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

        3. Dented (not related to nicks).

        1. Accept.

      6. Zone D, refer to Figure.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.050 in. (1.270 mm) in depth located in either leading or trailing edge. A minimum distance of 0.205 in. (5.207 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge and trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.050 in. (1.270 mm) in depth located on either leading or trailing edge. A minimum distance of 0.205 in. (5.207 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge and trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      7. Blade tips.

        1. Missing piece.

        1. Reject.

        2. Discoloration (related to tip rub).

        1. Accept.

        3. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y, refer to Figure.

        1. Accept.

        4. Tip rub (not related to cracks and tears).

        1. Accept.

      8. All areas.

        1. Deposits.

          1. Light deposits of abradable atmospheric contamination.

          1. Accept.

    3. SUBTASK 72-00-00-210-052-A00 V2500-A1 ONLY Examine the Stage 4 to 6 HP Compressor Rotor Blades

    1. Refer to Figure and Figure.

      2. Zone A - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      3. Zone A - Stage 4 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step

          1. Reject

      4. Zone A - Stage 5 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      5. Zone A - Stage 6 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.125 in. (3.17 mm) in depth.

          1. Accept.

          2. More than Step.

          1. Reject.

      6. Zone B - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      7. Zone B - Stage 4 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      8. Zone B - Stage 5 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      9. Zone B - Stage 6 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. More than Step.

          1. Reject.

      10. Zone C - Stages 4, 5 and 6 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicks and Dents.

          1. Not more than 0.005 in. (0.127 mm).

          1. Accept.

          2. More than Step.

          1. Reject.

      11. Blade tips.

        1. Missing piece.

        1. Reject.

        2. Discoloration (related to tip rub).

        1. Accept.

        3. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y.

        1. Accept.

        4. Tip rub (not related to cracks or tears).

        1. Accept.

      12. All areas.

        1. Deposits.

          1. Light deposits of abradable/atmospheric contamination.

          1. Accept.

    4. SUBTASK 72-00-00-210-052-B00 V2500-A5 ONLY Examine the Stage 4 to 6 HP Compressor Rotor Blades

    1. Refer to Figure and Figure.

      2. Zone A - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      3. Zone A - Stage 4 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      4. Zone A - Stage 5 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      5. Zone A - Stage 6 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.125 in. (3.17 mm) in depth.

          1. Accept.

        2. More than Step.

        1. Reject.

      6. Zone B - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      7. Zone B - Stage 4 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth

          1. Accept

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      8. Zone B - Stage 5 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.180 in. (4.57 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      9. Zone B - Stage 6 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.060 in. (1.52 mm) in depth.

          1. Accept.

          2. More than Step.

          1. Reject.

      10. Zone C - Stages 4 and 5 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Stage 4 Blades - more than in Step but not more than 0.050 in. (1.270 mm) in depth located on the leading edge. A minimum distance of 0.220 in. (5.588 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. Stage 5 Blades - more than in Step but not more than 0.050 in. (1.270 mm) in depth located on the trailing edge. A minimum distance of 0.220 in. (5.588 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. Stage 4 Blades - more than Step.

          1. Reject.

          5. Stage 5 Blades - more than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Stage 4 Blades - more than in Step but not more than 0.050 in. (1.270 mm) in depth located on the leading edge. A minimum distance of 0.220 in. (5.588 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. Stage 5 Blades - more than in Step but not more than 0.050 in. (1.270 mm) in depth located on the trailing edge. A minimum distance of 0.220 in. (5.588 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. Stage 4 Blades - more than Step.

          1. Reject.

          5. Stage 5 Blades - more than Step.

          1. Reject.

      11. Zone C - Stage 6 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept.

          2. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than Step.

          1. Reject.

      12. Blade tips.

        1. Missing piece.

        1. Reject.

        2. Discoloration (related to tip rub).

        1. Accept.

        3. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y.

        1. Accept.

        4. Tip rub (not related to cracks or tears).

        1. Accept.

      13. All areas.

        1. Deposits.

          1. Light deposits of abradable/atmospheric contamination.

          1. Accept.

    5. SUBTASK 72-00-00-210-053-A00 V2500-A1 ONLY Examine the Stage 7 to 12 HP Compressor Rotor Blades

    1. Refer to Figure and Figure.

      2. Zone A - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      3. Zone A - Stage 7 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.075 in. (1.90 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      4. Zone A - Stage 8 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.067 in. (1.70 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      5. Zone A - Stage 9 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.060 in. (1.52 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      6. Zone A - Stage 10 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      7. Zone A - Stage 11 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      8. Zone A - Stage 12 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      9. Zone B - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      10. Zone B - Stage 7 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.075 in. (1.90 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      11. Zone B - Stage 8 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.067 in. (1.70 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      12. Zone B - Stage 9 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.060 in. (1.52 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      13. Zone B - Stage 10 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      14. Zone B - Stage 11 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      15. Zone B - Stage 12 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      16. Zone C - All Stages.

        1. Cracked or torn.

        1. Reject.

        2. Nicks and Dents.

          1. Not more than 0.005 in. (0.127 mm).

          1. Accept.

          2. More than Step.

          1. Reject.

      17. Blade tips.

        1. Missing piece - Stage 7, 9, 10, 11 and 12 rotor blades.

        1. Reject.

        2. Missing piece - Stage 8 rotor blades only.

          1. Not more than 0.060 in. (1.524 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

        3. More than Step.

        1. Reject.

        4. Discoloration (related to tip rub).

        1. Accept.

        5. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y.

        1. Accept.

        6. Tip rub (not related to cracks or tears).

        1. Accept.

      18. All areas.

        1. Deposits.

          1. Light deposits of abradable/atmospheric contamination.

          1. Accept.

    6. SUBTASK 72-00-00-210-053-B00 V2500-A5 ONLY Examine the Stage 7 to 12 HP Compressor Rotor Blades

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

      2. Zone A - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      3. Zone A - Stage 7 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.075 in. (1.90 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      4. Zone A - Stage 8 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.067 in. (1.70 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      5. Zone A - Stage 9 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.060 in. (1.52 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      6. Zone A - Stage 10 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      7. Zone A - Stage 11 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      8. Zone A - Stage 12 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.030 in. (0.76 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      9. Zone B - All stages.

        1. Cracked or torn.

        1. Reject.

        2. Dented (not related to nicks).

        1. Accept.

      10. Zone B - Stage 7 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.075 in. (1.90 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      11. Zone B - Stage 8 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.067 in. (1.70 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      12. Zone B - Stage 9 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.060 in. (1.52 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject

      13. Zone B - Stage 10 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      14. Zone B - Stage 11 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      15. Zone B - Stage 12 rotor blades.

        1. Nicks and tears.

          1. Not more than 0.015 in. (0.38 mm) in depth.

          1. Accept.

          2. Not more than 0.050 in. (1.27 mm) in depth.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      16. Zone C - Stage 7 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.026 in. (0.660 mm) in depth located on the trailing edge. A minimum distance of 0.095 in. (2.413 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.026 in. (0.660 mm) in depth located on the trailing edge. A minimum distance of 0.095 in. (2.413 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      17. Zone C - Stage 8 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Accept if greater than Step but less than or equal to 0.012 in. (0.305 mm) in depth and all of the following criteria are met:

          1. A single nick per blade in Zone C, located on the leading edge or contained in less than 0.020 in. (0.508 mm) from the leading edge.

          2. Not more than three nicks per stage.

            NOTE

            Alternative option to perform Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004) for damage that meets criteria of Step.

          3. More than in Step but not more than 0.028 in. (0.711 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Dents 0.005 in. (0.127 mm) in depth or less on any gas washed surface. No limit to the number.

          1. Accept.

          2. Accept if greater than Step but less than or equal to 0.012 in. (0.305 mm) in depth and all of the following criteria are met:

          1. A single dent in Zone C, located on the leading edge or contained in less than 0.020 in. (0.508 mm) from the leading edge.

            2. Not more than three dents per stage.

            1. Alternative option to perform Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004) for damage that meets criteria of Step.

          3. More than in Step but not more than 0.028 in. (0.711 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. More than Step.

          1. Reject.

      18. Zone C - Stages 9 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.030 in. (0.762 mm) in depth located on either leading or trailing edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge and trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. More than in Step but not more than 0.030 in. (0.762 mm) in depth located on either leading or trailing edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge and trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. More than Step.

          1. Reject.

      19. Zone C - Stage 10 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Accept if greater than Step but less than or equal to 0.018 in. (0.457 mm) in depth and all of the following criteria are met:

          1. A single nick per blade in Zone C, located on the leading edge or contained in less than 0.040 in. (1.0 mm) from the leading edge.

          2. Not more than three nicks per stage.

            NOTE

            Alternative option to perform Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004) for damage that meets criteria of Step.

          3. More than in Step but not more than 0.030 in. (0.762 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. More than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Dents 0.005 in. (0.127 mm) in depth or less on any gas washed surface. No limit to the number.

          1. Accept.

          2. Accept if greater than Step but less than or equal to 0.018 in. (0.457 mm) in depth and all of the following criteria are met:

          1. A single dent in Zone C, located on the leading edge or contained in less than 0.040 in. (1.0 mm) from the leading edge.

          2. Not more than three dents per stage.

            NOTE

            Alternative option to perform Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004) for damage that meets criteria of Step.

          3. More than in Step but not more than 0.030 in. (0.762 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. More than Step.

          1. Reject.

      20. Zone C - Stages 11 to 12 rotor blades.

        1. Cracked or torn.

        1. Reject.

        2. Nicked.

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Stage 11 - more than in Step but not more than 0.030 in. (0.762 mm) in depth located on the trailing edge. A minimum distance of 0.077 in. (1.956 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. Stage 12 - more than in Step but not more than 0.030 in. (0.762 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. Stage 11 - more than Step.

          1. Reject.

          5. Stage 12 - more than Step.

          1. Reject.

        3. Dented (not related to cracks, nicks or tears).

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Accept, without limit to number.

          2. Stage 11 - more than in Step but not more than 0.030 in. (0.762 mm) in depth located on the trailing edge. A minimum distance of 0.077 in. (1.956 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the trailing edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          3. Stage 12 - more than in Step but not more than 0.030 in. (0.762 mm) in depth located on the leading edge. A minimum distance of 0.075 in. (1.905 mm) from the top (Outer Diameter) of the blade platform measured from the corner closest to the leading edge must be kept. Keep out of fillet area.

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          4. Stage 11 - more than Step.

          1. Reject.

          5. Stage 12 - more than Step.

          1. Reject.

      21. Blade tips.

        1. Missing piece - Stage 7, 9, 10, 11 and 12 rotor blades.

        1. Reject.

        2. Missing piece - Stage 8 rotor blades only.

          1. Not more than 0.060 in. (1.524 mm).

          1. Repair, VRS9653 TASK 72-00-00-300-004 (REPAIR-004).

          2. More than Step.

          1. Reject.

        3. Discoloration (related to tip rub).

        1. Accept.

        4. Bent or curled (not related to cracks or tears) not more than 5 percent of dimension X or Y.

        1. Accept.

        5. Tip rub (not related to cracks or tears).

        1. Accept.

      22. All areas.

        1. Deposits.

          1. Light deposits of abradable/atmospheric contamination.

          1. Accept.

    7. Figure: HP Compressor Blades : V2500-A1

    HP Compressor Blades : V2500-A1

    Figure: HP Compressor Blades : V2500-A5

    HP Compressor Blades : V2500-A5

    Figure: HP Compressor Blades

    HP Compressor Blades

    Figure: HP Compressor Blades

    HP Compressor Blades

    Figure: Typical Leading Edge Nicks and Dents in Zone C (For Stage 8 Rotor Blades Only)

    Typical Leading Edge Nicks and Dents in Zone C (For Stage 8 Rotor Blades Only)

    Figure: Typical Leading Edge Nicks and Dents in Zone C (For Stage 10 rotor blades only)

    Typical Leading Edge Nicks and Dents in Zone C (For Stage 10 rotor blades only)

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure to update limits. (17VG022)