TASK 72-41-34-200-021 HPC Variable Stator Vane Actuation System Remaining Parts - Examine, Inspection-021

DMC:V2500-A0-72-41-3460-00A-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 72-41-34-200-021 HPC Variable Stator Vane Actuation System Remaining Parts - Examine, Inspection-021

Effectivity

FIG/ITEM

PART NO.

VARIOUS

BOLT

VARIOUS

NUT

VARIOUS

WASHER

VARIOUS

SPACER

VARIOUS

DOWEL

VARIOUS

BRACKET

General

This TASK gives the procedure for the inspection of the remaining parts.

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 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.

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 number are in the SPM.

References

Refer to the SPM for data on these items.

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

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

Inspection of Parts, 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.

Methods of Testing for Crack Indiciations

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 72-41-34-220-145 Examine the Adjusting Spacers

      1. Galled

      1. Reject

      2. Scored

      1. Reject

      3. Bent

      1. Reject

      4. Bolt Holes.

        1. Burred

        1. Reject

        2. Elongated

        1. Reject

    2. SUBTASK 72-41-34-220-146 Examine the Adjusting Washers

      1. Galled

      1. Reject

      2. Bolt Holes.

        1. Burred

        1. Reject

        2. Elongated

        1. Reject

    3. SUBTASK 72-41-34-220-153 Examine the Bolts

      1. Threads.

        1. Crossed

        1. Reject

        2. Stripped

        1. Reject

        3. Threads that re not there

        1. Reject

        4. Worn excessively

        1. Reject

      2. Shank wear (01-184).

        1. If the shank diameter is between 0.311 to 0.312 in. (7.91 to 7.93 mm)

        1. Accept

        2. Less than in step B.(1)

        1. Reject

      3. Shank wear (01-234, 01-284 and 01-336).

        1. If the shank diameter is between 0.311 to 0.312 in. (7.91 to 7.93 mm)

        1. Accept

        2. Less than in step C.(1)

        1. Reject

    4. SUBTASK 72-41-34-220-154 Examine the Nuts

      1. Threads.

        1. Crossed

        1. Reject

        2. Stripped

        1. Reject

        3. Threads that are not there

        1. Reject

        4. Worn excessively

        1. Reject

      2. Damage to the head of the nut

      1. Reject

    5. SUBTASK 72-41-34-220-155 Examine the Spacers

      1. Scored

      1. Reject

      2. Bent

      1. Reject

      3. Galled

      1. Reject

      4. Bolt hole.

        1. Burred

        1. Reject

        2. Elongated

        1. Reject

    6. SUBTASK 72-41-34-220-156 Examine the Dowels

      1. External surfaces.

        1. Galled

        1. Reject

        2. Scored

        1. Reject

        3. Scatched

        1. Reject

      2. Bore.

        1. Scored

        1. Reject

        2. Scratched

        1. Reject

    7. SUBTASK 72-41-34-220-157 Examine the Brackets

      1. Scored

      1. Reject

      2. Bent

      1. Reject

      3. Galled

      1. Reject

      4. Bolt hole.

        1. Burred

        1. Reject

        2. Elongated

        1. Reject

    8. SUBTASK 72-41-34-220-547 Examine the Retaining Rings

      1. Bent or Burred

      1. Reject

      2. Scored to a depth of 0.002 in. (0.05 mm) with no raised metal

      1. Accept

      3. More than in B.

      1. Reject

    9. SUBTASK 72-41-34-220-548 Examine the Pins

      1. Bent or Burred

      1. Reject

      2. Scored to a depth of 0.002 in. (0.05 mm) with no raised metal

      1. Accept

      3. More than in B.

      1. Reject

Requirements After Job Completion

Follow-On Conditions

NONE