TASK 75-24-51-200-402-B00 Active Clearance Control (ACC) Valve - Related Parts - Examine The Housing Assembly, Inspection-002

DMC:V2500-A0-75-24-5100-01B-310A-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 75-24-51-200-402-B00 Active Clearance Control (ACC) Valve - Related Parts - Examine The Housing Assembly, Inspection-002

Effectivity

FIG/ITEM

PART NO.

01-275

2A1512

01-275

2A1534

01-276

2A1587

01-276

2A3735

01-286

2A1588

01-286

2A3736

01-287

2A1589

01-287

2A3737

General

This TASK gives the procedure for the inspection of the housing assembly. For the other ACC valve parts, refer to Inspection-000 TASK 75-24-51-200-400.

Fig/item numbers in parentheses in the procedure agree with those used in 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 the part is examined. Refer to Cleaning-000 TASK 75-24-51-100-400.

All 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 SUBTASK 75-24-51-230-052. Do the test before the part is visually examined.

Do not discard any 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 should be discarded can be held although no repair is available. The repair of a discarded part could be shown to be necessary at a later date.

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

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

References

Refer to the SPM for data on these items.

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

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 the SPM.

Method 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 75-24-51-230-076 Examine the Housing Assembly (01-275, 01-276, 01-286 and 01-287) for Cracks

    1. Clean the parts. Refer to Cleaning-000 TASK 75-24-51-100-400.

      2. Do the visual inspection on the parts that are given below.

        1. Housing. Refer to SPM TASK 70-21-01-220-501.

          1. Cracked

          1. Reject

    2. SUBTASK 75-24-51-230-077 Examine the Housing Assembly (01-275, 01-276, 01-286 and 01-287) Diameter

    1. Refer to Figure.

      2. Examine all the surface.

        1. Dented.

          1. Not more than 0.01 in. (0.254 mm) in depth.

          1. Repair, VRS1518 (Repair-005) TASK 75-24-51-300-005.

          2. More than in Step.

          1. Reject

        2. Nicked

          1. Not more than 0.005 in. (0.127 mm) in depth.

          1. Repair, VRS1518 (Repair-005) TASK 75-24-51-300-005.

          2. More than in Step.

          1. Reject

    3. SUBTASK 75-24-51-220-078 Examine the Housing Assembly (01-275, 01-276, 01-286 and 01-287) Diameter

    1. Refer to Figure.

      2. Examine the inner-diameter at location 1.

        1. Worn

          1. Less than or equal to 3.29 in. (83.90 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

    4. SUBTASK 75-24-51-220-094 Examine the Housing Assembly (01-275) Bush Hole

    1. Refer to Figure.

      2. Examine the inner-diameter of bush hole A at location 2.

        1. Worn

          1. Less than or equal to 0.363 in. (9.22 mm) in inner-diameter.

          1. Accept

          2. Between 0.363 and 0.387 in. (9.22 mm and 9.82 mm) in inner-diameter.

          1. Rework, Refer to SBE 75-0094.

          3. More than 0.387 in. (9.82 mm) in inner-diameter.

          1. Reject

      3. Examine the inner-diameter of bush hole B at location 4.

        1. Worn

          1. Less than or equal to 0.363 in. (9.22 mm) in inner-diameter.

          1. Accept

          2. Between 0.363 and 0.387 in. (9.22 mm and 9.82 mm) in inner-diameter.

          1. Rework, Refer to SBE 75-0094.

          3. More than 0.387 in. (9.82 mm) in inner-diameter.

          1. Reject

    5. SUBTASK 75-24-51-220-095 Examine the Housing Assembly (01-275, 01-276, 01-286 and 01-287) Insert

    1. Refer to Figure.

      2. Examine the insert

        1. Any damage

        1. Repair, VRS1519 (Repair-006) TASK 75-24-51-300-006.

        2. Loose

        1. Repair, VRS1519 (Repair-006) TASK 75-24-51-300-006.

    6. SUBTASK 75-24-51-220-104 Examine the Housing Assembly (01-276) Bush Hole

    1. Refer to Figure.

      2. Examine the inner-diameter of bush hole A at location 2.

        1. Worn

          1. Less than or equal to 0.387 in. (9.82 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

      3. Examine the inner-diameter of bush hole B at location 4.

        1. Worn

          1. Less than or equal to 0.363 in. (9.22 mm) in inner-diameter.

          1. Accept

          2. Between 0.363 and 0.387 in. (9.22 mm and 9.82 mm) in inner-diameter.

          1. Rework, Refer to SBE 75-0094.

          3. More than 0.387 in. (9.82 mm) in inner-diameter.

          1. Reject

    7. SUBTASK 75-24-51-220-105 Examine the Housing Assembly (01-286) Bush Hole

    1. Refer to Figure.

      2. Examine the inner-diameter of bush hole A at location 2.

        1. Worn

          1. Less than or equal to 0.363 in. (9.22 mm) in inner-diameter.

          1. Accept

          2. Between 0.363 and 0.387 in. (9.22 mm and 9.82 mm) in inner-diameter.

          1. Rework, Refer to SBE 75-0094.

          3. More than 0.387 in. (9.82 mm) in inner-diameter.

          1. Reject

      3. Examine the inner-diameter of bush hole B at location 4.

        1. Worn

          1. Less than or equal to 0.387 in. (9.82 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

    8. SUBTASK 75-24-51-220-106 Examine the Housing Assembly (01-287) Bush Hole

    1. Refer to Figure.

      2. Examine the inner-diameter of bush hole A at location 2.

        1. Worn

          1. Less than or equal to 0.387 in. (9.82 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

      3. Examine the inner-diameter of bush hole B at location 4.

        1. Worn

          1. Less than or equal to 0.387 in. (9.82 mm) in inner-diameter.

          1. Accept

          2. Other than in Step.

          1. Reject

    9. Figure: Inspection of the Housing Assembly

    Inspection of the Housing Assembly

Requirements After Job Completion

Follow-On Conditions

NONE