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 72-45-14-300-021 HPT Stage 1 Blade - Blend Repair On The Trailing Edge Tip, Repair-021 (VRS3685)
Effectivity
FIG/ITEM | PART NO. |
|---|---|
01-010 | 2A1221 |
01-010 | 2A1221-001 |
01-010 | 2A1221-002 |
01-010 | 2A1721 |
01-010 | 2A1721-001 |
01-010 | 2A1721-002 |
01-010 | 2A2421 |
01-010 | 2A2421-001 |
01-010 | 2A3001 |
01-010 | 2A3001-001 |
01-010 | 2A3001-002 |
01-010 | 2A8601 |
01-010 | 2A8901 |
General
This Repair must only be done when the instruction to do so is given in TASK 72-45-14-200-000 (INSPECTION-000).
Price and availability - none
Prerequisites
If necessary, remove the protective coating
For PN 2A1221, PN 2A1221-001, PN 2A1221-002, PN 2A1721, PN 2A1721-001, PN 2A1721-002, PN 2A2421 and PN 2A2421-001, do the procedure given in TASK 72-45-14-300-012 (VRS3551) REPAIR-012.
For PN 2A3001, PN 2A3001-001, PN 2A3001-002, PN 2A8601 and PN 2A8901, do the procedure given in TASK 72-45-14-300-014 (VRS3563) REPAIR-014.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Fine file | LOCAL | Fine file | ||
| Workshop inspection equipment | LOCAL | Workshop inspection equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-106 ABRASIVE STONE | K6835 | CoMat 05-106 |
Spares
NONESafety Requirements
NONEProcedure
See Figure.
Use a fine file or CoMat 05-106 ABRASIVE STONE.
Maximum blend depth is 0.060 in. (1.52 mm).
All blends must be smooth and continuous.
Blend the trailing edge tip.
SUBTASK 72-45-14-350-065 Blend the Trailing Edge Tip
Do the procedure in the SPM TASK 70-23-05-230-501 (SPOP 70, high sensitivity) or SPM TASK 70-23-03-230-501 (SPOP 82).
Remaining cracks must not start from the blended area.
Fluorescent penetrant inspect the blended area.
SUBTASK 72-45-14-230-061 Fluorescent Penetrant Inspect the Blended Area
Do the procedure given in REPAIR, VRS3203 TASK 72-45-14-300-002 (REPAIR-002).
Touch-up the coating in the blend repair area.
Do the procedure given in REPAIR, VRS3551 TASK 72-45-14-300-012 (REPAIR-012).
Coat the airfoil.
Do the procedure given in REPAIR, VRS3553 TASK 72-45-14-300-013 (REPAIR-013).
Overcoat the airfoil.
For PN 2A1221, PN 2A1221-001, PN 2A1221-002, PN 2A1721, PN 2A1721-001, PN 2A1721-002, PN 2A2421 and PN 2A2421-001, coat the area as follows:
Do the procedure given in REPAIR, VRS3563 TASK 72-45-14-300-014 (REPAIR-014).
Coat the airfoil.
Do the procedure given in REPAIR, VRS3568 TASK 72-45-14-300-015 (REPAIR-015).
Overcoat the airfoil.
For PN2A3001, PN2A3001-001, PN2A3001-002, PN2A8601 and PN2A8901, coat the area as follows:
SUBTASK 72-45-14-340-052 Postrequisites
Refer to TASK 72-45-14-200-000 (INSPECTION/CHECK-000).
Examine the blade.
SUBTASK 72-45-14-220-056 Examine the Stage 1 HPT Blade After Repair
Figure: Stage 1 HPT blade trailing edge tip blend repair
Stage 1 HPT blade trailing edge tip blend repair
