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 72-60-40-300-001 Angle Gearbox Assembly - Related Parts - Repair A Cracked Bracket, Repair-001 (VRS2853)
General
This repair can be done on the bracket during overhaul.
Price and availability - none
If the bracket has been repaired before, do not carry out this repair.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Argon-arc welding equipment | LOCAL | Argon-arc welding equipment | ||
| Wire brush | LOCAL | Wire brush |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 03-204 WELDING FILLER WIRE | LOCAL | CoMat 03-204 |
Spares
NONESafety Requirements
NONEProcedure
Refer to SPM TASK 70-31-02-310-501-001.
Clean the area to be repaired.
SUBTASK 72-60-40-110-051 Clean the Repair Area
Refer to SPM TASK 70-31-02-310-501-001.
Make sure that the weld-bead is symmetrical along the full length of the crack.
Type - Argon-arc D.C. Torch - B.O.C. W200 or an equivalent.
Electrode - 2 percent thoriated tungsten with a 0.0625 in. (1.54 mm) diameter.
The welding data is as follows:
Weld the crack
SUBTASK 72-60-40-310-051 Repair the Crack
Use the Wire brush to remove the unwanted materials caused by the repair.
Clean the repaired area.
SUBTASK 72-60-40-120-051 Clean the Repaired Area
Refer to SPM TASK 70-31-02-310-501-001.
Make sure that the weld is complete along the full length of the crack.
Visually examine the repair weld.
SUBTASK 72-60-40-220-051 Examine the Repair
Refer to SPM TASK 70-31-02-310-501-001.
Do a dye-penetrant test on the repair.
SUBTASK 72-60-40-230-051 Examine the Repair
Refer to SPM TASK 70-09-00-400-501.
Mark the repair scheme number VRS2853 on the bracket adjacent to the part number with the electro-etch method.
SUBTASK 72-60-40-850-051 Put the Repair Scheme Number on the Bracket