DMC:V2500-A0-72-41-3116-00A-920A-C|Issue No:001|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 72-41-31-300-010 HPC Stage 6 Rotor Path Segment - Replace The Lining, Repair-010 (VRS6245)

Effectivity

FIG/ITEM	PART NO.
01-700	6A3466
01-700	6A3977

Material of component

PART IDENT	MATERIAL
HP compressor stage 6 rotor path ring	Jethete

General

This repair must only be done when the instruction to do so is given in 72-41-31 Inspection-XXX.

The practices and processes referred to in the procedure by the TASK/SUBTASK numbers are in the SPM.

After this repair the rotor path will be completed during assembly.

Price and availability

Refer to International Aero Engines.

NOTE

Equipment and materials necessary to do this repair are given in SPM TASKs given below:

SPM TASK 70-09-00-400-501

SPM TASK 70-11-01-300-503

SPM TASK 70-11-39-300-503

SPM TASK 70-12-02-120-501

SPM TASK 70-23-01-230-501

SPM TASK 70-33-59-300-503

SPM TASK 70-34-01-340-501

NOTE

To identify the consumable materials refer to the PCI.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

Name	Manufacturer	Part Number / Identification	Remark
Abrasive blast equipment	LOCAL	Abrasive blast equipment
Chemical cleaning equipment	LOCAL	Chemical cleaning equipment
Hardness tester	LOCAL	Hardness tester
Metal spray equipment	LOCAL	Metal spray equipment
Penetrant Crack Test Equipment	LOCAL	Penetrant crack test equipment
Bottle	LOCAL	Bottle	Polythene
Standard workshop equipment	LOCAL	Standard workshop equipment
Vibrating marking pencil	LOCAL	Vibrating marking pencil
Workshop inspection equipment	LOCAL	Workshop inspection equipment

Consumables, Materials and Expendables

Name	Manufacturer	Part Number / Identification
CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE	LOCAL	CoMat 01-025
CoMat 01-041 ALKALINE RUST REMOVER	LOCAL	CoMat 01-041
CoMat 02-198 ADHESIVE TAPE (MASKING METAL SPRAY)	LOCAL	CoMat 02-198
CoMat 03-036 METAL SPRAYING WIRE, Ni,Al	LOCAL	CoMat 03-036
CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5)	IE200	CoMat 03-038
CoMat 03-057 ALUMINIUM ALLOY/POLYESTERCOMPOSITE	LOCAL	CoMat 03-057
CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5)	00741	CoMat 03-089
CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5)	0AM53	CoMat 03-090
CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE	LOCAL	CoMat 05-001
CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY)	LOCAL	CoMat 06-063

Spares

NONE

Safety Requirements

NONE

Procedure

1. 1. Refer to TASK 72-41-31-100-000 (CLEANING-000).
    Use chemical cleaning equipment.
1. Refer to Figure and Figure.
2. 1. Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-003.
    Use CoMat 01-041 ALKALINE RUST REMOVER alkali rust remover.
    Use chemical cleaning equipment.
1. Refer to Figure and Figure.
2. 1. Refer to the SPM TASK 70-33-59-300-503, SUBTASK 70-33-59-300-002.
    Use CoMat 01-025 NITRIC ACID HNO3, TECHNICAL GRADE.
    Use chemical cleaning equipment.
    Put the assembly into the nitric acid and keep below the surface.
    Stripping is complete when gassing stops.
    Remove assembly from the acid immediately after gassing stops.
1. Refer to Figure and Figure.
2. 1. Refer to the SPM TASK 70-12-02-120-501.
    Use CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE.
    Use abrasive blast equipment.
1. 1. Refer to the SPM TASK 70-11-39-300-503, SUBTASK 70-11-39-300-001.
    Use a polythene bottle.
1. Refer to Figure and Figure.
2. 1. Use workshop inspection equipment.
1. 1. Refer to the SPM TASK 70-23-01-230-501.
    Use CoMat 06-063 FLUORESCENT PENETRANT (POST-EMULSIFIED MEDIUM SENSITIVITY).
    Use penetrant crack test equipment.
1. 1. Refer to the SPM TASK 70-11-01-300-503.
    Use chemical cleaning equipment.
1. Refer to Figure, Figure and Figure.
2. 1. Use CoMat 02-198 ADHESIVE TAPE (MASKING METAL SPRAY) or locally made fixture.
3. NOTE
  The adhesive tape permits the blasting and the sprayed coating to be done in the one operation.
1. 1. Refer to the SPM TASK 70-12-02-120-501.
    Use CoMat 05-001 ABRASIVE MEDIUM, ALUMINIUM OXIDE, 20/30 GRADE.
    Use abrasive blast equipment.
1. Refer to Figure and Figure.
2. 1. Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-025 or SUBTASK 70-34-01-340-010.
    For powder feed plasma spray gun, use CoMat 03-038 METAL SPRAYING POWDER NICKEL ALUMINIUM (95/5), CoMat 03-089 METAL SPRAYING POWDER Ni/Al (95/5) or CoMat 03-090 METAL SPRAYING POWDER Ni/Al (95/5).
    Alternatively for the wire feed combustion spraying, use CoMat 03-036 METAL SPRAYING WIRE, Ni,Al.
    Pre heat the seal ring to 221 deg F to 257 deg F (105 deg C to 125 deg C).
    Apply to a thickness of 0.0030 to 0.0050in. (0.076 to 0.127 mm).
    Use metal spray equipment.
    Apply bond coat to a test piece.
3. 1. Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-304-020.
    Use CoMat 03-057 ALUMINIUM ALLOY/POLYESTERCOMPOSITE.
    Use metal spray equipment.
    Apply a sufficient thickness to allow for machining.
    Apply abradable lining to a test piece to check the spray hardness.
    Recommended Guideline Spraying Data (METCO 7M and METCO 9M Systems)
    Spray distance
    150 mm
    Voltage
    75 v
    Current
    500 A
    Power
    37.5 Kw
    Power feed rate
    52.5 g/min
    Argon pressure
    100 psi
    Argon flow
    190
    Hydrogen pressure
    50 psi
    Hydrogen flow
    6
4. NOTE
  Powder port No.1 should be used.
  Remove the masking tape.
1. Refer to Figure and Figure.
2. 1. Refer to the SPM TASK 70-34-01-340-501.
3. 1. Use workshop inspection equipment.
4. 1. Refer to the SPM TASK 70-34-01-340-501, SUBTASK 70-34-01-340-004.
    Use hardness testing equipment.
    Average hardness must be 55 to 85 R15Y, outer limits 50 min, 90 max.
    If the hardness value is outside the limits, reject the assembly and do the repair again.
1. Refer to Figure and Figure.
2. 1. Use standard workshop equipment.
3. 1. Use standard workshop equipment.
1. Refer to Figure and Figure.
2. 1. Use workshop inspection equipment.
1. Refer to Figure.
2. 1. Refer to the SPM TASK 70-09-00-400-501, SUBTASK 70-09-00-400-001.
    Use vibro engraving equipment.

Repair Details and Dimensions

Repair Details and Dimensions (Assembly B)

Requirements After Job Completion

Follow-On Conditions

NONE

Manufacturer Code:	00741
Enterprise Name:	Was BOC GASES
BU Name:	DELETED, REFER TO SUPPLIER CODE 46AN7

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:	IE200
Enterprise Name:	DELETED, REFER TO CAGE CODE 00BB6

Manufacturer Code:	LOCAL
Enterprise Name:	LOCALLY SUPPLIED

Spray distance	150 mm
Voltage	75 v
Current	500 A
Power	37.5 Kw
Power feed rate	52.5 g/min
Argon pressure	100 psi
Argon flow	190
Hydrogen pressure	50 psi
Hydrogen flow	6

Manufacturer Code:	LOCAL
Tool Number:	Chemical cleaning equipment
Tool Name:	Chemical cleaning equipment

TASK 72-41-31-300-010 HPC Stage 6 Rotor Path Segment - Replace The Lining, Repair-010 (VRS6245)

Export Control

Copyright

Applicability

Common Information

TASK 72-41-31-300-010 HPC Stage 6 Rotor Path Segment - Replace The Lining, Repair-010 (VRS6245)

Effectivity

Material of component

General

NOTE

NOTE

Preliminary Requirements

Pre-Conditions

Support Equipment

Consumables, Materials and Expendables

Spares

Safety Requirements

Procedure

SUBTASK 72-41-31-110-079 Chemically Clean

SUBTASK 72-41-31-330-053 Chemically Remove the Abradable Lining

SUBTASK 72-41-31-330-054 Chemically Remove the Bond Coat

SUBTASK 72-41-31-120-053 Remove the Bond Coat that Remains

SUBTASK 72-41-31-110-090 Cold Ferric Chloride Etch

SUBTASK 72-41-31-220-132 Examine the Stage 6 Rotor Path Ring

SUBTASK 72-41-31-230-072 Do a Crack Test

SUBTASK 72-41-31-110-064 Clean the Stage 6 Rotor Path Ring

SUBTASK 72-41-31-350-061 Seal the Areas not to be Sprayed

NOTE

SUBTASK 72-41-31-120-054 Abrasive Blast the Areas to be Sprayed

CAUTION

CAUTION

SUBTASK 72-41-31-340-052 Apply the Abradable Lining to the Repaired Part and Test Piece

NOTE

SUBTASK 72-41-31-220-133 Examine the Stage 6 Rotor Path Lining

SUBTASK 72-41-31-350-063 Remove the Overspray

SUBTASK 72-41-31-220-134 Examine the Stage 6 Rotor Path Ring

SUBTASK 72-41-31-350-064 Identify the Repair

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 (Assembly B)

Repair Details and Dimensions (Assembly B)

Figure: Repair Details and Dimensions (Assembly B)

Repair Details and Dimensions (Assembly B)

Figure: Repair Details and Dimensions (Assembly B)

Repair Details and Dimensions (Assembly B)

Figure: Repair Details and Dimensions (Assembly B)

Repair Details and Dimensions (Assembly B)

Requirements After Job Completion

Follow-On Conditions