TASK 75-31-42-200-404 LPC Bleed Master Actuator - Related Parts - Examine The LPC Bleed Master Actuator Bracket Assembly, Inspection-004

DMC:V2500-A0-75-31-4200-03A-310A-C|Issue No:002.00|Issue Date:2021-08-01

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 75-31-42-200-404 LPC Bleed Master Actuator - Related Parts - Examine The LPC Bleed Master Actuator Bracket Assembly, Inspection-004

Effectivity

FIG/ITEM

PART NO.

01-200

6A4368

01-200

6A7375

General

This TASK gives the procedure for the inspection of the bracket assembly. For the other LPC bleed master actuator parts, refer to Inspection-000 TASK 75-31-42-200-400.

All 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 SPM TASK 70-20-01-200-501.

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 could be shown to be necessary at a later 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 numbers 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 are 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 75-31-42-230-054 Examine the Bracket Assembly (01-200) for Cracks

    1. Clean the part. Refer to Cleaning-000 TASK 75-31-42-100-400.

      2. Visually examine for cracks on the part that is given below.

        1. LPC bleed master actuator bracket assembly

          1. Cracked

          1. Repair-005, VRS6627 TASK 75-31-42-300-005.

    2. SUBTASK 75-31-42-220-080 Examine the Bracket Assembly Actuator Mounting Face

    1. Refer to Figure.

      2. Examine the actuator mounting face at location 1.

        1. Nicked and scored

          1. Up to 0.003 inch (0.07 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

    3. SUBTASK 75-31-42-220-081 Examine the Bracket Assembly Guide Mounting Face

    1. Refer to Figure.

      2. Examine the guide mounting face at location 2.

        1. Nicked

          1. Up to 0.003 inch (0.07 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

        2. Scored

          1. Up to 0.003 inch (0.07 mm) in depth

          1. Accept

          2. More than in Step

          1. Reject

    4. SUBTASK 75-31-42-220-082 Examine the Bracket Assembly Helicoil Insert

    1. Refer to Figure.

      2. Examine the helicoil insert at location 3.

        1. Loose

        1. Repair-007, VRS6667 TASK 75-31-42-300-007

    5. SUBTASK 75-31-42-220-083 Examine the Bracket Assembly Locating Pins

    1. Refer to Figure.

      2. Examine the locating pin at locations 4 and 5.

        1. Worn

          1. If the diameter is between 0.1974 and 0.1977 inch (5.012 and 5.024 mm).

          1. Accept

          2. More than in Step

          1. Repair-007, VRS6667 TASK 75-31-42-300-007

        2. Nicked and scratched

          1. Up to 0.005 inch (0.12 mm) in depth with no raised metal

          1. Accept

          2. More than in Step

          1. Repair-007, VRS6667 TASK 75-31-42-300-007

    6. SUBTASK 75-31-42-220-085 Examine the Bracket Assembly Bolt Holes

    1. Refer to Figure.

      2. Examine the bolt holes at location 6.

        1. Scored

          1. Up to 0.010 inch (0.25 mm) in depth with no raised metal

          1. Accept

          2. Burred edges

          1. Reject

    7. SUBTASK 75-31-42-220-086 Examine the Bracket Assembly all Remaining Surfaces

    1. Refer to Figure.

      2. Nicked, dented, and scored

        1. Up to 0.005 inch (0.12 mm)

        1. Accept

        2. More than in Step

        1. Reject

    8. SUBTASK 75-31-42-220-087 Examine Surface Protection Coating (for 6A4368 only)

    1. Refer to Figure.

      2. Worn to base material

      1. Repair-006, VRS6628 TASK 75-31-42-300-006

    9. Figure: Locations on the LPC Master Actuator Bracket Assembly

    Locations on the LPC Master Actuator Bracket Assembly

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised table. Revised procedural step. Added SUBTASK. (19VU517)