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 72-32-76-200-001-A00 LPC Stage 2.5 Stator - Examine, Inspection-001
General
This TASK gives the procedure for the inspection of the LP compressor stage 2.5 vanes.
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 70-20-00-200-501.
All parts must be cleaned before any part is examined. Refer to TASK 72-32-76-100-000.
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 Step. Do the test before the part is visually examined. Limits for cracks are given in the SUBTASK for each part.
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 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 the data on these items.
Definitions of damage, SPM TASK 70-02-02-350-501
Inspection of parts, SPM TASK 70-20-00-200-501
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent penetrant inspection equipment |
Consumables, Materials and Expendables
NONESpares
NONESafety Requirements
NONEProcedure
Clean the parts. Refer to TASK 72-32-76-100-000.
Repair, VRS1357 TASK 72-32-76-300-008 (REPAIR-008)
Cracked
Inner ring.
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-003)
Cracked
Vanes.
Do the test for cracks on the parts that are given below. Use the applicable penetrant procedure.
PART IDENT
TASK/OP
LP compressor stage 2.5 vanes
SUBTASK 72-32-76-230-052 Examine the LP Compressor Stage 2.5 Vanes (01-400) for Cracks
Refer to Figure.
Repair, VRS1348 TASK 72-32-76-300-006 (REPAIR-006)
Less than 0.045 in. (1.14 mm)
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-003)
More than Step
Any nicks or dents.
Examine the airfoil leading edge at location 11.
Repair, VRS1348 TASK 72-32-76-300-006 (REPAIR-006)
Less than 0.045 in. (1.14 mm)
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-003)
More than Step
Any nicks or dents.
Examine the airfoil trailing edge at location 6.
Repair, VRS1348 TASK 72-32-76-300-006 (REPAIR-006)
Less than 0.004 in. (0.10 mm)
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-006)
More than Step
Any nicks or dents.
Examine the airfoil surface other than leading or trailing edge at location 5.
SUBTASK 72-32-76-220-058 Examine the LP Compressor Stage 2.5 Vanes (01-400) Airfoil
Refer to Figure.
Repair, VRS1346 TASK 72-32-76-300-005 (REPAIR-005)
Less than 0.003 in. (0.07 mm)
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-003)
More than Step
Any nicks or dents.
Examine the vane platform at location 7.
SUBTASK 72-32-76-220-059 Examine the LP Compressor Stage 2.5 Vanes (01-400) Vane Platform
Refer to Figure.
Repair, VRS1346 TASK 72-32-76-300-005 (REPAIR-005)
Any nicks
Repair, VRS1346 TASK 72-32-76-300-005 (REPAIR-005)
Any scores
Examine the outer shroud surface at location 3.
SUBTASK 72-32-76-220-060 Examine the LP Compressor Stage 2.5 Vanes (01-400) Outer Shroud Ring Surface
Refer to Figure.
Repair, VRS1346 TASK 72-32-76-300-005 (REPAIR-005)
Any nicks or dents less than 0.005 in. (0.12 mm) in depth
Repair, VRS1357 TASK 72-32-76-300-008 (REPAIR-008)
More than Step
Examine the inner ring surface at location 9.
SUBTASK 72-32-76-220-061 Examine the LP Compressor Stage 2.5 Vanes (01-400) Inner Ring Surface
Refer to Figure.
Repair, VRS1352 TASK 72-32-76-300-001 (REPAIR-001)
Damaged
Examine the sleeve at location 2.
SUBTASK 72-32-76-220-062 Examine the LP Compressor Stage 2.5 Vanes (01-400) Sleeve
Refer to Figure.
Repair, VRS1346 TASK 72-32-76-300-005 (REPAIR-005)
Scored
Examine the bolt holes at location 8.
SUBTASK 72-32-76-220-063 Examine the LP Compressor Stage 2.5 Vanes (01-400) Bolt Hole
Refer to Figure.
Repair, VRS1354 TASK 72-32-76-300-007 (REPAIR-007)
More than Step
Worn.
Repair, VRS1354 TASK 72-32-76-300-007 (REPAIR-007)
Damaged, deteriorated or unbonded
Examine the abradable rubber at location 12.
SUBTASK 72-32-76-220-064 Examine the LP Compressor Stage 2.5 Vanes (01-400) Abradable Rubber
Refer to Figure.
Repair, VRS1355 TASK 72-32-76-300-002 (REPAIR-002)
Damaged or deteriorated
Examine the potting rubber at location 4.
SUBTASK 72-32-76-220-065 Examine the LP Compressor Stage 2.5 Vanes (01-400) Potting Rubber
Refer to Figure.
Repair, VRS1356 TASK 72-32-76-300-004 (REPAIR-004)
Damaged or loose
Examine the captive nut at location 1.
SUBTASK 72-32-76-220-066 Examine the LP Compressor Stage 2.5 Vanes (01-400) Captive Nut
Refer to Figure.
Repair, VRS1350 TASK 72-32-76-300-003 (REPAIR-003)
Any damage
Examine the Airfoil and Platform Fillet Area at location 10.
SUBTASK 72-32-76-220-067 Examine the LP Compressor Stage 2.5 Vanes (01-400) Airfoil and Platform Fillet Area
Repair, VRS1353 TASK 72-32-76-300-019 (REPAIR-019)
Damaged or loose
Examine the nuts at location 13.
SUBTASK 72-32-76-220-097 Examine the LP Compressor Stage 2.5 Vanes (01-400) Nuts,
Figure: Location on the LP compressor stage 2.5 stator assembly
Location on the LP compressor stage 2.5 stator assembly

Figure: Location on the LP compressor stage 2.5 stage assembly
Location on the LP compressor stage 2.5 stage assembly

