TASK 72-41-34-200-005-A00 HPC Inlet Variable Stator Vane Unison Rings - Examine, Inspection-005

DMC:V2500-A0-72-41-3422-00A-300A-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 72-41-34-200-005-A00 HPC Inlet Variable Stator Vane Unison Rings - Examine, Inspection-005

Effectivity

FIG/ITEM PART NO.

02-440

6A3535

02-540

6A3537

General

This TASK gives the procedure for the inspection of the variable inlet guide vane actuating ring.

Fig/item numbers in parentheses in the procedure agree with those used in the EIPC.

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 any part is examined.

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.

A ** following repair referenced in this inspection indicates that the repair is not yet published in the current revision of the manual and the part must be rejected. Contact IAE for additional information concerning FAA approved repair date.

The procedure for those parts which must have a crack test is given in Step. Do the crack test before a 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 can be shown to be necessary at a subsequent date.

All the 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/SUBTASK number are in the SPM.

References

Refer to the SPM for data on these items.

Definition of Damage, SPM TASK 70-02-02-350-501

Record and Control of the Lives of Parts, SPM TASK 70-05-00-220-501

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 72-41-34-230-054 Examine the Variable Inlet Guide Vane Actuating Ring (02-440 and 02-540) for Cracks

    1. Clean the parts. Refer to TASK 72-41-34-100-000 (CLEANING-000).

      2. Do the test for cracks on the part that is given below.

        PART IDENT

        TASK/SUBTASK

        Variable inlet guide vane actuating ring

        1. Cracked

        1. Reject

    2. SUBTASK 72-41-34-220-084 Examine the Variable Inlet Guide Vane Actuating Rings (02-440 and 02-540) Bodies at Location 1 and 2

    1. Refer to Figure.

      2. Nicked.

        1. Up to 0.005 in. (0.13 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS6158 TASK 72-41-34-300-046 (REPAIR-046)

      3. Scored.

        1. Up to 0.005 in. (0.13 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS6158 TASK 72-41-34-300-046 (REPAIR-046)

      4. Scratched.

        1. Up to 0.005 in. (0.13 mm) in depth

        1. Accept

        2. More than in Step

        1. Repair, VRS6158 TASK 72-41-34-300-046 (REPAIR-046)

    3. SUBTASK 72-41-34-220-085 Examine the Variable Inlet Guide Vane Actuating Rings (02-440 and 02-540) Spacers at Location 3

    1. Refer to Figure.

      2. Loose

      1. Reject

      3. Inner bore.

        1. Scratched

        1. Reject

        2. Worn excessively

        1. Reject

        3. Scored

        1. Reject

    4. SUBTASK 72-41-34-220-086 Examine the Variable Inlet Guide Vane Actuating Rings (02-440 and 02-540) Bracket at Location 4 and 7

    1. Refer to Figure.

      2. Screw thread inserts at location 4.

        1. Broken

        1. Repair, VRS6156, TASK 72-41-34-300-014 (REPAIR-014)

        2. Crossed threads

        1. Repair, VRS6156, TASK 72-41-34-300-014 (REPAIR-014)

        3. Worn excessively

        1. Repair, VRS6156, TASK 72-41-34-300-014 (REPAIR-014)

        4. Threads that are not there

        1. Repair, VRS6156, TASK 72-41-34-300-014 (REPAIR-014)

      3. Screw threads at location 7.

        1. Broken

        1. Reject

        2. Crossed threads

        1. Reject

        3. Worn excessively

        1. Reject

        4. Threads that are not there

        1. Reject

    5. SUBTASK 72-41-34-220-087 Examine the Variable Inlet Guide Vane Actuating Rings (02-440 and 02-540) Bushes at Location 5

    1. Refer to Figure.

      2. Inner bore.

        1. Scored

        1. Repair, VRS6265, TASK 72-41-34-300-047 (REPAIR-047)

        2. Scratched

        1. Repair, VRS6265, TASK 72-41-34-300-047(REPAIR-047)

        3. Wear.

          1. If the inner bore diameter is between 0.236 and 0.237 in. (6.00 to 6.02 mm)

          1. Accept

          2. More than in Step

          1. Repair, VRS6265, TASK 72-41-34-300-047 (REPAIR-047)

      3. Bushes that are not there

      1. Repair, VRS6265, TASK 72-41-34-300-047 (REPAIR-047)

      4. Excessive bush movement (side to side)

      1. Repair, VRS6265, TASK 72-41-34-300-047 (REPAIR-047)

    6. SUBTASK 72-41-34-220-088 Examine the Variable Inlet Guide Vane Actuating Ring (02-540) Spindle at Location 6

    1. Refer to Figure

      2. Loose

      1. Reject

      3. Threads.

        1. Crossed

        1. Reject

        2. Stripped

        1. Reject

        3. Worn excessively

        1. Reject

        4. Picked-up

        1. Reject

      4. Wear (non threaded shank).

        1. If the diameter is between 0.373 to 0.374 in. (9.49 to 9.51 mm)

        1. Accept

        2. Less than in Step

        1. Reject

    7. SUBTASK 72-41-34-220-173 Examine the Variable Inlet Guide Vane Actuating Rings (02-440 and 02-540) Spacer Holes at Location 8

    1. Refer to Figure.

      2. Burred edges

      1. Reject

      3. Elongated

      1. Reject

    8. Figure: Variable inlet guide vane actuating ring - inspection locations

    Variable inlet guide vane actuating ring - inspection locations

Requirements After Job Completion

Follow-On Conditions

NONE