TASK 72-41-21-300-027 High Pressure (HP) Compressor Stage 7 Case And Stage 8 Rotor Path Case Assembly - Replace The Location Dowel Pin, Repair-027 (VRS6549)

DMC:V2500-A0-72-41-2107-01A-920A-C|Issue No:002.00|Issue Date:2019-08-01

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 72-41-21-300-027 High Pressure (HP) Compressor Stage 7 Case And Stage 8 Rotor Path Case Assembly - Replace The Location Dowel Pin, Repair-027 (VRS6549)

Preliminary Requirements

Pre-Conditions

Action/ConditionData Module/Technical Publication
Make sure that all the cleaning and inspection procedures are done before this repair.
General Cleaning - HPC Assembly - The Table Of Part Numbers/Task Numbers, Cleaning-000TASK 72-41-00-100-000
General Inspection - HPC Ring Cases And Related Parts - The Table Of Part Numbers/Task Numbers, Inspection-000TASK 72-41-21-200-000

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
RIVET - SOLID HEADU1653AS162951

For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624

PinLOCALAS448031

For PN 6B1432

WASHER0AM53EY292481

For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624

DOWEL0AM53UP604781

For PNs 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624

DowelLOCALUP107431

For PNs 6A3500 and 6A4310

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-41-21-350-284 Remove the Loose or Damaged Dowel

      1. For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624:

        1. Remove the rivet using one of the following methods. Refer to Figure and Figure.

        1. Grind off the rivet head and push out the rivet.

        2. Center punch and drill the rivet head.

      2. Use a drift and remove the dowel pin. Refer to Figure and Figure.

      2. For PN 6B1432:

      1. Use a drift and remove the dowel pin. Refer to Figure and Figure.

    2. SUBTASK 72-41-21-110-003 Clean the Dowel Location Hole

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

    3. SUBTASK 72-41-21-220-772 Do a Dimensional Inspection of the Dowel Location Hole

      1. For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624:

      1. Inspect to the limits in Figure.

      2. If the dimensions are not in the limits, reject the part.

      2. For PN 6B1432:

      1. Inspect to the limits in Figure.

      2. If the dimensions are not in the limits, reject the part.

    4. SUBTASK 72-41-21-350-285 Install the New Dowel

      1. For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624:

      1. Chill the new dowel by TASK 70-46-04-400-501.

      2. Install the dowel. Refer to Figure and Figure.

        3. Install the AS16295 RIVET - SOLID HEAD and EY29248 WASHER into the case and dowel. Refer to Figure and Figure.

        1. For PNs 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624: Crop the rivet to a length of 0.539 in. - 0.579 in. (13.68 mm - 14.72 mm) before forming.

        2. Cold squeeze the rivet in place. Ensure that the Flange is sufficiently supported during the cold squeeze process. Damage to the part can occur if this is not done properly. Refer to SPM TASK 70-39-03-390-501.

        3. Do a dimensional inspection of the installed rivet. Refer to Figure.

      2. For PN 6B1432:

      1. Chill the new pin. Refer to SPM TASK 70-46-04-400-501.

      2. Install the pin. Refer to Figure and Figure.

    5. SUBTASK 72-41-21-220-773 Do a Visual Inspection of the Installed Locating Dowel Pin

    1. Refer to SPM TASK 70-21-01-220-501.

    6. SUBTASK 72-41-21-110-004 Clean the Repaired Area

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

    7. SUBTASK 72-41-21-350-286 Mark the Part

    1. Mark the part with VRS6549 adjacent to the assembly part number.

    2. Use vibration peen method. Refer to SPM TASK 70-09-00-400-501.

    8. Figure: High Pressure (HP) Compressor Stage 7 Case and Stage 8 Rotor Path Case Assembly - Replace the Location Dowel Pin, Repair-027 (VRS6549)

    High Pressure (HP) Compressor Stage 7 Case and Stage 8 Rotor Path Case Assembly - Replace the Location Dowel Pin, Repair-027 (VRS6549)

    Figure: High Pressure (HP) Compressor Stage 7 Case and Stage 8 Rotor Path Case Assembly - Replace the Location Dowel Pin, Repair-027 (VRS6549) For PNs 6A3500, 6A4310, 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624

    0.1966 - 0.1972 Inch (4.992 - 5.010 mm), Diameter.

    Legend
    [1]

    0.1966 - 0.1972 Inch (4.992 - 5.010 mm), Diameter.

    [2]

    0.241 - 0.255 Inch (6.10 - 6.50 mm), Diameter, Reference.

    [3]

    40 Degrees - 50 Degrees, Reference.

    [4]

    Universal Head Solid Rivet, AS16295.

    [5]

    Washer, EY29248.

    [6]

    Dowel, UP60478 (For PNs 6A4569, 6A6548, 6A7019, 6A7529, 6A7578 and 6A7624) or UP10743 (For PNs 6A3500 and 6A4310).

    [7]

    0.205 Inch (5.20 mm), Reference.

    [8]

    0.059 - 0.074 Inch (1.50 - 1.90 mm).

    Close

    Figure: High Pressure (HP) Compressor Stage 7 Case and Stage 8 Rotor Path Case Assembly - Replace the Location Dowel Pin, Repair-027 (VRS6549) For PN 6B1432

    0.1572 - 0.1578 Inch (3.992 - 4.010 mm), Diameter.

    Legend
    [1]

    0.1572 - 0.1578 Inch (3.992 - 4.010 mm), Diameter.

    [2]

    Headless Shoulder Pin, AS44803.

    Close

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised the procedure in its entirety. (17VG010)

Manufacturer Code:0AM53
Enterprise Name:IAE INTERNATIONAL AERO ENGINES AG
BU Name:NULL
Building:SUITE 400
Street:628 HEBRON AVENUE
City:GLASTONBURY
State:CT
Zip Code:06033
Country:USA
Manufacturer Code:LOCAL
Enterprise Name:LOCALLY SUPPLIED
Manufacturer Code:U1653
Enterprise Name:Society Of British Aerospace Companies, LTD.
Part Number:AS16295
Part Name:RIVET - SOLID HEAD
Manufacturer Code:U1653
Link not Found
Part Number:EY29248
Part Name:WASHER
Manufacturer Code:0AM53
Link not Found
Part Number:UP60478
Part Name:DOWEL
Manufacturer Code:0AM53