TASK 36-11-47-200-101 HP Bleed Control Air Tubes - Examine, Inspection-001

DMC:V2500-A0-36-11-4700-02A-310A-C|Issue No:002.00|Issue Date:2020-11-01

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 36-11-47-200-101 HP Bleed Control Air Tubes - Examine, Inspection-001

Effectivity

FIG/ITEM

PART NO.

01-100

6A2136

01-100

6A5391

01-500

6A2139

01-500

6A6224

02-100

6A2140

02-500

6A2138

02-500

6A6225

03-100

6A2137

General

This TASK gives the procedure for the inspection of the HP bleed control air tubes. For the other HP bleed control air tube parts, refer to Inspection-000 TASK 36-11-47-200-100 and the Component Maintenance Manual - Miscellaneous Mechanical (CMM-Mech- V2500-1IA) Inspection-000 TASK 36-11-47-200-400.

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.

The policy that is necessary for Inspection is given in the SPM TASK 70-20-01-200-501.

All the parts must be cleaned before they are examined. Refer to Cleaning-000 TASK 36-11-47-100-100.

All the parts must be visually examined for damage, corrosion and wear. Any defects that are not identified in the procedure must be referred to IAE.

The procedure for those parts which must have a crack test is given in the relevant SUBTASK. Do the crack test before the part is visually examined.

Do not discard a part until you are sure there are no repairs available. Refer to the instructions in Repair before a discarded part is used again or oversize parts are installed.

Parts which must be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a subsequent date.

All parts must be examined to make sure that all the repairs are completed satisfactorily.

Practices and processes referred to in the procedure by the TASK/SUBTASK number are in the SPM.

NOTE

The consumable materials are given in the related SPM TASK.

Reference

Refer to SPM for data on these items:

Definitions of Damage - Specified Types of Damage, SPM TASK 70-02-02-350-501.

Inspection Policy and Inspection of Parts, SPM TASK 70-20-01-200-501.

Some data on these items is contained in this TASK. For more data on these items refer to SPM:

Methods of Testing for Crack Indications

Chemical Processes

Surface Protection

Preliminary Requirements

Pre-Conditions

NONE

Support Equipment

NONE

Consumables, Materials and Expendables

NONE

Spares

NONE

Safety Requirements

NONE

Procedure

    1. SUBTASK 36-11-47-230-051-001 Examine the Tubes for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 36-11-47-100-100.

      2. Do a test for cracks on the parts given below. Use the applicable penetrant inspection procedure.

        PART IDENT

        TASK/SUBTASK

        Tubes (01-100), (01-500), (02-100), (02-500) and (03-100)

        1. Cracked

        1. Reject

    2. SUBTASK 36-11-47-230-051-002 Examine the Air Tubes for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 36-11-47-100-100.

      2. Do a test for cracks on the parts given below. Use the applicable penetrant inspection procedure.

        PART IDENT

        TASK/SUBTASK

        Tubes (01-100), (01-500), (02-100), (02-500) and (03-500)

        1. Cracked

        1. Reject

    3. SUBTASK 36-11-47-220-051 Examine the Air Tubes Surfaces

      1. Dented

        1. Less than 0.500 in. (12.75 mm) from the tube connectors

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. In areas other than Step of smooth type and large area related to depth; which do not decrease the tube diameter more than ten percent in one location

        1. Accept

        3. In areas other than Step of smooth type and small area; not more than 0.125 sq in. (80.60 sq mm) with a depth not more than 0.025 in. (0.64 mm)

        1. Accept

        4. Limits more than Step and Step.

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      2. Nicked

        1. On the outer surface of a bend

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. In areas other than Step up to 0.002 in. (0.05 mm) in depth

        1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

        3. Limits more than Step and Step.

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      3. Galled

        1. On the outer surface of a bend

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. In areas other than Step up to 0.002 in. (0.05 mm) in depth

        1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

        3. Limits more than Step and Step.

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      4. Scored

        1. On the outer surface of a bend

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. In areas other than Step not more than 0.002 in. (0.05 mm) in depth

        1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

        3. Limits more than Step and Step.

        1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

    4. SUBTASK 36-11-47-220-052 Examine the Air Tube End Connectors

      1. Union adapters

        1. Threads

          1. Pick-up

          1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

          2. Crossed or stripped

          1. Repair, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

        2. Flange bolt holes

          1. Burred

          1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

      2. Union nuts

        1. Threads

          1. Pick-up

          1. Repair, VRS6401 (Repair-003) TASK 36-11-47-300-003.

          2. Crossed or stripped

          1. Repair, VRS6401 (Repair-003) TASK 36-11-47-300-003.

        2. Lockwire holes

          1. Damaged

          1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

    5. SUBTASK 36-11-47-220-053 Examine the Air Tube Lugs (01-100, 01-500, 02-100)

      1. Cracked or damaged

      1. Replace, SPM VRS7001 (Repair-001) TASK 70-35-24-300-501.

      2. Bolt holes burred

      1. Repair, VRS6399 (Repair-001) TASK 36-11-47-300-001.

    6. SUBTASK 36-11-47-210-051 Examine the Tube Bore

      1. Plugged

      1. Clear with dry compressed air

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Editorial update for typo. (CAS-83989-P7Y1W0)