TASK 72-50-00-200-006 LPT Stage 3 Rotor Assembly - Examine, Inspection-006

DMC:V2500-A0-72-50-0027-00A-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 72-50-00-200-006 LPT Stage 3 Rotor Assembly - Examine, Inspection-006

General

This TASK gives the procedure for the inspection of the stage 3 rotor.

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

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

The policy that is necessary for inspection is given in the SPM TASK 70-20-00-200-501.

All the parts must be cleaned before any part is examined. Refer to the SPM TASK 70-11-03-300-503.

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.

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 TASK numbers are in the SPM.

Reference

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 70-20-00-200-501

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 72-50-00-220-088 Examine the Stage 3 Rotor for Shingling

    1. Refer to: Fig. 72-50-00-990-100

      2. Do the test at six places, equally spaced on the circumference. Separate the blades by hand circumferentially. Load them by hand in an axial and radial direction.

        1. Blades are not to be separated by hand

        1. Accept

        2. Shroud faces contact without shingling

        1. Accept

        3. Other than in (1) and (2)

        1. Reject

    2. Figure: Shingling of stage 3 rotor blades

    Shingling of stage 3 rotor blades

    Figure: Shingling of stage 3 rotor blades

    Shingling of stage 3 rotor blades

Requirements After Job Completion

Follow-On Conditions

NONE