TASK 71-52-45-200-301 Exhaust Gas Temperature (EGT) Harness - Examine The Harness, Inspection-001 (PRE and POST SBE 77-0015)

DMC:V2500-A0-71-52-4500-00A-310A-C|Issue No:006.00|Issue Date:2019-08-01

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 71-52-45-200-301 Exhaust Gas Temperature (EGT) Harness - Examine The Harness, Inspection-001 (PRE and POST SBE 77-0015)

Effectivity

FIG/ITEM

PART NO.

REMARKS

01-005

2A1490

PRE SBE 77-0015

01-005

2A4524

POST SBE 77-0015

01-005

6A4720

PRE SBE 77-0015

01-005

6A5878

PRE SBE 77-0015

General

This TASK gives the procedure for the inspection of the EGT Wiring Harness (PRE and POST SBE 77-0015). For other EGT harness parts, refer to TASK 71-52-45-200-300 (INSPECTION-000).

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.

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

All the parts must be cleaned before any part is examined. Refer to TASK 71-52-45-100-300 (CLEANING-000).

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 the relevant SUBTASK. Do the crack 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 numbers are in SPM.

Reference

Refer to 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 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 71-52-45-220-052 Examine the EGT Harness Cables at Location 1

    1. Refer to Figure.

      2. Examine the cables/braided harness.

        1. Chafed.

        1. Reject.

        2. Frayed.

        1. Reject.

        3. Cut.

        1. Reject.

        4. Fused.

        1. Reject.

        5. Burned.

        1. Reject.

    2. SUBTASK 71-52-45-220-053 Examine the EGT Harness Receptacle at Location 2

    1. Refer to Figure and Figure.

      2. Body.

        1. Cracked.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Broken.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

      3. Threads.

        1. Stripped.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Crossed.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        3. Pick-up.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

      4. Pins.

        1. Bent.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Worn.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

          NOTE

          Use a new pin or socket. Do a check for tension on each contact by feel.

        3. Loose.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

    3. SUBTASK 71-52-45-220-063 Examine the EGT Harness Backshell at Connector Location 2

    1. Refer to Figure and Figure.

      2. Coupling nut.

        1. Cracked.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Knurled shoulder.

          1. Worn.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

      3. Lockwire hole.

        4. Broken.

          1. Not more than 50 percent.

          1. Accept.

          2. More than in Step.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

      3. Backshell.

        1. Scored.

          1. Not more than 0.002 in. (0.051 mm).

          1. Accept.

          2. More than in Step.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Nicked.

          1. Not more than 0.002 in. (0.051 mm).

          1. Accept.

          2. More than in Step.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        3. Screws.

          1. Missing.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        4. Lockwire (which safeties the coupling nuts to the backshell).

          1. Missing/broken.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        5. Tubing.

          1. Split/torn.

          1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

    4. SUBTASK 71-52-45-220-054 Examine the EGT Harness Terminals at Locations 5, 6, 7 and 8

    1. Refer to Figure.

      NOTE

      To avoid congestion only one terminal is shown in Figure.

      2. Terminals.

        1. Cracked.

        1. Reject.

        2. Broken.

        1. Reject.

        3. Looseness.

          1. Crimp joints.

          1. Reject.

    5. SUBTASK 71-52-45-220-055 Examine the EGT Harness Sleeves and Sleeve Markers at Locations 3 and 4

    1. Refer to Figure.

      2. Sleeves and sleeve markers.

        1. Chafed.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

        2. Torn.

        1. Repair, VRS7002 TASK 70-35-25-300-001 (REPAIR-001).

    6. Figure: EGT Harness - Inspection Locations

    EGT Harness - Inspection Locations

    EGT Harness - Inspection Locations

Requirements After Job Completion

Follow-On Conditions

NONE
Change Type:

Revised steps. (19VC223)

Change Type:

Added pre service bulletin information. (Editorial)

Change Type:

Revised the effectivity table. (18VC112)