TASK 78-11-11-020-001 Remove the Common Nozzle Assembly (CNA), Removal-001

DMC:V2500-A0-78-11-1100-01A-520A-B|Issue No:003.00|Issue Date:2015-05-01

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 78-11-11-020-001 Remove the Common Nozzle Assembly (CNA), Removal-001

General

Fig/item numbers in parentheses in the procedure agree with those used in the IPC. Only the primary Fig/item numbers are used. For the service bulletin alpha variants refer to the IPC.

Apply the approved CoMat 10-058 PENETRATING OIL before the removal of threaded parts and parts with an interference fit. Let the parts soak before removal.

NOTE

To identify the consumable materials refer to the PCI.

NOTE

Special tools are identified in the procedure by the tool primary number.

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NameManufacturerPart Number / IdentificationQuantityRemark
IAE 1N20001 Common nozzle fixture0AM53IAE 1N200011
IAE 1N20004 Common nozzle dolly0AM53IAE 1N200041

Consumables, Materials and Expendables

NameManufacturerPart Number / IdentificationQuantityRemark
CoMat 10-058 PENETRATING OIL0AM53CoMat 10-058

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 78-11-11-020-056 Install the Common Nozzle Fixture

    1. Refer to Figure and Figure .

    2. Lift the IAE 1N20001 Common nozzle fixture 1 off with a suitable lifting device to the common nozzle assembly (CNA) (01-010).

    3. Attach the fixture straps around the nozzle to hold it on the fixture.

    4. Put the IAE 1N20004 Common nozzle dolly 1 off in to position at the rear of the engine.

    2. SUBTASK 78-11-11-020-057 Remove the Core Cowl Fire Detector from the Air Cooled Air Cooler (ACAC) Exhaust Duct

    1. Refer to Figure.

    2. Remove the nut FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-131), washer FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-129), bolt FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-125), and the clip FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-127) from the ACAC exhaust duct ACAC Exhaust Duct And Housing(75-22-48, 01-010).

    3. Remove the nut FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-137), washer FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-135), bolt FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-132), and the clip FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-133) from the ACAC exhaust duct ACAC Exhaust Duct And Housing (75-22-48, 01-010).

    4. Remove the nut FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-145), washer FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-143), bolt FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-140), and the clip FIRE PROTECTION-CORE ZONE FIRE DETECTOR (26-12-17, 01-141) from the ACAC exhaust duct ACAC Exhaust Duct And Housing (75-22-48, 01-010).

    3. SUBTASK 78-11-11-020-058 Remove the Lower Segment of the Air Cooled Air Cooler (ACAC) Exhaust Duct (Pre SBN 75-0058, SBN 75-0058)

      SBN 75-0058

    1. Refer to Figure.

    2. Pre SBN 75-0058: Remove the four bolts ACAC Exhaust Duct And Housing (75-22-48, 01-050) which attach the housing of the ACAC exhaust duct ACAC Exhaust Duct And Housing (75-22-48, 01-010) to the CNA (78-11-11,01-010).

    3. SBN 75-0058: Remove the two bolts ACAC Exhaust Duct And Housing (75-22-48, 01-085), the two radius blocks ACAC Exhaust Duct And Housing (75-22-48, 01-075) and ACAC Exhaust Duct And Housing (75-22-48, 01-080) and the two nuts ACAC Exhaust Duct And Housing (75-22-48, 01-070) that attach the housing ACAC Exhaust Duct And Housing (75-22-48, 01-040) to the CNA (78-11-11,01-010). Remove the support ring ACAC Exhaust Duct And Housing (75-22-48, 01-060) and the backup ring ACAC Exhaust Duct And Housing (75-22-48, 01-065).

    4. Remove the coupling ACAC Exhaust Duct And Housing (75-22-48, 01-020) and the seal ACAC Exhaust Duct And Housing (75-22-48, 01-030) which attach the ACAC exhaust duct lower segment to the upper segment.

    5. Remove the ACAC exhaust duct lower segment with the housing from the CNA.

    4. SUBTASK 78-11-11-020-059 Remove the Common Nozzle Assembly (CNA)

      NOTE

      Access to some of the CNA fasteners is difficult. Access to these fasteners can be improved by the use of a standard 5/16 in. (7.93 mm) wrench modified to fit the contour of the CNA.

    1. Refer to Figure and Figure.

    2. Remove the bolts Common Nozzle Assembly (CNA) (78-11-11, 01-020), washers Common Nozzle Assembly (CNA) (78-11-11, 01-025) and nuts Common Nozzle Assembly (CNA) (78-11-11, 01-030) or the bolts Common Nozzle Assembly (CNA) (78-11-11, 01-020) and washers Common Nozzle Assembly (CNA) (78-11-11, 01-025) which attach the CNA Common Nozzle Assembly (CNA) (78-11-11, 01-010) to the engine flange.

    3. Carefully remove the CNA in the fixture away from the rear of the engine. Make sure that you do not touch the exhaust cone Engine Exhaust Cone And Plug (78-11-12, 01-010) with the CNA.

    4. Install the IAE 1N20001 Common nozzle fixture 1 off with the CNA on the IAE 1N20004 Common nozzle dolly 1 off.

    5. Figure: Common Nozzle Assembly, Fixture and Dolly

    Sheet 1

    Legend
    Common Nozzle Assembly, Fixture and Dolly

    Sheet 1

    Close

    Figure: Common Nozzle Assembly, Fixture and Dolly

    Sheet 2

    Legend
    Common Nozzle Assembly, Fixture and Dolly

    Sheet 2

    Close

    Figure: ACAC Exhaust Duct

    ACAC Exhaust Duct

    Figure: Core Cowl Fire Detector

    Core Cowl Fire Detector

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised format. (editorial change)

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:X222X
Supply Number:CoMat 10-058
Type:sp01
Supply Short Name:CoMat 10-058 PENETRATING OIL
Supply Name:CoMat 10-058 PENETRATING OIL
Suppliers:
ManufacturerRemarks
X222X
Manufacturer Code:0AM53
Tool Number:IAE 1N20001
Tool Name:IAE 1N20001 Common nozzle fixture
Manufacturer Code:0AM53
Tool Number:IAE 1N20004
Tool Name:IAE 1N20004 Common nozzle dolly