TASK 72-31-13-300-003 LPC Fan Blade Front Retaining Ring - Replace The Shank Nuts, Repair-003 (VRS1161)

DMC:V2500-A0-72-31-1300-00A-920A-C|Issue No:001.00|Issue Date:2013-11-01

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 72-31-13-300-003 LPC Fan Blade Front Retaining Ring - Replace The Shank Nuts, Repair-003 (VRS1161)

Effectivity

FIG/ITEM

PART NO.

01-160

5A6079

01-160

5A0898

Material of component

RR

DESCRIPTION

SYMBOL

MATERIAL

Front blade retaining ring

Titanium alloy

Shank nut

Corrosion resistant steel

General

Price and availability - none

The practices and processes referred to in the procedure by the TASK number are in the SPM.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
Drilling machineLOCALDrilling machine

Radial

Fluorescent Penetrant Inspection EquipmentLOCALFluorescent penetrant inspection equipment
IAE 3J12713 Peening tool0AM53IAE 3J127131

Consumables, Materials and Expendables

NONE

Spares

NameManufacturerPart Number / IdentificationQuantityRemark
Self locking shank nutAS2787024

Safety Requirements

NONE

Procedure

    1. SUBTASK 72-31-13-350-054 Remove the Damaged Shank Nuts of the Front Blade Retaining Ring Assembly

    1. Refer to: Figure

      2. Remove the damaged shank nut.

      1. With the use of a radial drilling machine, drill the flare of the shank nut until the flare twists.

      2. Use a 0.378 in. (9.60 mm) drill.

      3. Care to be taken that the flange bore or face do not become damaged.

      4. Refer to the SPM TASK 70-35-11-300-501.

    3. Remove the sharp edge from around the nut location hole.

    4. Clean the hole with a soft clean cloth and blast with air.

    2. SUBTASK 72-31-13-230-054 Examine the Flange Nut Location Hole of the Front Blade Retaining Ring Assembly

      1. Do a penetrant crack test on the rear snap diameter.

        1. Refer to the SPM TASK 70-23-05-230-501.

        1. Cracks are not permitted.

    3. SUBTASK 72-31-13-220-065 Examine the Flange of the Front Blade Retaining Ring Assembly

      1. Visually examine the nut location hole.

      1. Nicks, scratches and burrs are not permitted.

    4. SUBTASK 72-31-13-350-055 Fit a New Shank Nut to the Front Blade Retaining Ring Assembly

    1. Refer to Figure.

      2. Fit a new shank nut into the flange nut location hole.

      1. Make sure the shank nut is installed correctly.

      3. Hold the shank nut in position and make a flare.

      1. The shank nut must be firmly held against the flange before the start of swaging.

      2. Care to be taken that the flange does not become damaged.

      4. During swaging, the tool may damage the silver coating inside the shank.

      5. This is permissible and it is not necessary to touch-up if the coating is damaged.

      6. Any loose flakes of silver coating are to be removed.

      7. Refer to the SPM TASK 70-35-11-300-501.

    5. SUBTASK 72-31-13-220-066 Examine the Shank Nut of the Front Blade Retaining Ring Assembly

    1. Refer to Figure.

      2. Visually examine the shank nut hole.

      1. The flare should be evenly peened.

      2. Cracks are not permitted.

      3. Circumferential movement of the nut to the flange is permitted but there must be no axial movement.

    6. Figure: Replace shank nut of the front blade retaining ring assembly

    Replace shank nut of the front blade retaining ring assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Link not Found
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
Link not Found
Manufacturer Code:LOCAL
Tool Number:Drilling machine
Tool Name:Drilling machine
Manufacturer Code:LOCAL
Tool Number:Fluorescent penetrant inspection equipment
Tool Name:Fluorescent Penetrant Inspection Equipment
Manufacturer Code:0AM53
Tool Number:IAE 3J12713
Tool Name:IAE 3J12713 Peening tool