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
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Common Information
TASK 72-42-00-100-000 Diffuser And Combustion Group - The Table Of Part Numbers/Task Numbers, Cleaning-000
General
This TASK gives the procedures to clean the Diffuser And Combustion Group Assembly parts.
The practices and processes referred to in the procedure by the TASK number are in SPM.
Part numbers with more REACh (Registration, Evaluation, Authorization, and Restriction of Chemicals) information are listed below:
2A3966-01
2A4327-01
Refer to How To Use (Engine Manual) Substances of Very High Concern and Safe Use Information.
Reference
Refer to General Cleaning, Section 70-10-00, in the Standard Practices Manual (SPM) for important cleaning information that supplements the TASKs.
When more than one TASK is specified for a part, refer to Section 70-10-00, SPM TASK 70-10-00-100-501 for selection of the applicable cleaning TASK.
Refer to Section 70-10-00 in the SPM for the TASK numbers given below.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
The parts in the Table are listed in numerical order by ATA number.
The TASK numbers in Table are listed in sequential numerical order.
ATA | PART NAME. | ITEM PART NO. | TASK |
|---|---|---|---|
72-42-10 | Diffuser Case Loop Clamp Bracket (ST) | 2A0489, 2A2222 | |
72-42-10 | Diffuser Case Tube Connector (ST) | 2A1632 | |
72-42-10 | Diffuser Case Machine Threaded Plug (ST) | 584971 | |
72-42-10 | Diffuser Case Machine Threaded Plug | AS27475, KU37810 | |
72-42-11 | Diffuser Case (NI) | 2A0051, 2A2081-01, 2A2581-01, 2A2883-01, 2A2885-01, 2A2889-01, 2A2891-01, 2A2896-01, 2A2897-01, 2A3132 | (See Note) |
NOTEIf TASK 70-11-54-300-503 is used, it is necessary to replace the thermal spray coating on the part. NOTEMake sure the diffuser case is cool to the touch before you do the FPI. Take all necessary precautions to make sure that the case stays clean and dust-free if you do not do the FPI immediately after cleaning. Proper cleaning of the diffuser case is critical to crack detection. | |||
72-42-31 | No. 4 Bearing Support (NI) | 2A0846, 2A2038, 2A2064, 2A2461 | |
72-42-32 | No. 4 Bearing Retaining Nut (ST) | 2A0064, 2A3956 | |
72-42-33 | No. 4 Bearing Seal Retaining Collar (ST) | 1A2592 | |
72-42-33 | No. 4 Bearing Seal Ring (ST) | 2A0074 | |
72-42-33 | No. 4 Bearing Seal Sleeve Spacer (NI) | 2A0127 | |
72-42-33 | No. 4 Bearing Front Seal Support (TI) | 2A3845, 2A4323 | |
72-42-33 | No. 4 Bearing Face Seal (ST) | 2A0856 | |
72-42-33 | No. 4 Bearing Face Seal (ST) | 2A2053, 2A2918, 2A3517, 2A2011, 2A3499 | |
72-42-33 | No. 4 Bearing Seal Sleeve Spacer (ST) | 2A0859 | |
72-42-33 | No. 4 Bearing Seal Helical Spring | 2A0860 | |
72-42-34 | No. 4 Bearing Oil Nozzle Assembly | 2A0896, 2A0896-001, 2A3966-01, 2A4327-01 | |
72-42-35 | No. 4 Bearing Front Cooling Duct (NI) | 2A0892-01, 2A0892-001, 2A2257-01, 2A3810-01 | (See Note) |
NOTEIf necessary, abrasive blast by TASK 70-12-07-120-501 only after chemical cleaning TASK 70-11-13-300-503 or TASK 70-11-54-300-503. | |||
72-42-36 | No. 4 Bearing Housing Front Heatshield (NI) | 2A1330 | |
72-42-40 | HPC Exit Guide Vane Stator (NI) | 6A3332, 6A4509 | (See Note) |
NOTEIf TASK 70-11-54-300-503 is used, it is necessary to replace the thermal spray coating on the part. | |||
72-42-50 | HPC Rear Static Seal (NI) | 6A3306, 6A3932, 6A4447, 6A4806, 6B1412 | |
72-42-50 | HPC Rear Static Seal (NI) | 6A2507 | |
72-42-50 | HPC Rear Static Seal Remaining Parts - Bolt | 4W0408, 4W1486 | |
72-42-61 | Outer Combustion Chamber Assembly - Outer Combustion Chamber (NI) | 2A0550-01, 2A1383, 2A1385, 2A1399, 2A1618, 2A1620, 2A1666, 2A2013, 2A2032, 2A2711-01, 2A2723-01, 2A2837-01, 2A3345-01, 2A3345-001, 2A3345-002, 2A3345-003, 2A3345-004, 2A3347-01, 2A3347-001, 2A3347-002, 2A3347-003, 2A3347-004, 2A3347-005, 2A3439-01, 2A3439-001, 2A3439-002, 2A3439-003, 2A3439-004, 2A3439-005, 2A3439-006, 2A3439-007, 2A3439-008, 2A3440-01, 2A3440-001, 2A3440-002, 2A3440-003, 2A3440-004, 2A3440-005, 2A3440-006, 2A3440-007, 2A3441-01, 2A3441-001, 2A3441-002, 2A3441-003, 2A3441-004, 2A3441-005, 2A3441-006, 2A3441-007, 2A3441-008, 2A3442-01, 2A3442-001, 2A3442-002, 2A3442-003, 2A3442-004, 2A3442-005, 2A3442-006, 2A3442-007, 2A3442-008, 2A4284-01, 2A4309-01, 2A4312-01, 2A4314-01, 2A4314-001 | |
72-42-62 | Combustion Chamber Retaining Bolt (NI) | 2A0403 | |
72-42-62 | Diffuser And Combustion Group Remaining Parts - no ATA | Various | |