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 73-22-51-300-001 P4.9 Air Sensor Tubes and Manifolds - Blend Repair Surface Damage, Repair-001 (VRS5179)
Effectivity
FIG/ITEM | PART NO. |
01-050 | 4B8051 |
01-050 | 4B8069 |
01-050 | 4B8071 |
01-050 | 2A3547-01 |
01-180 | 4B8052 |
01-180 | 4B8070 |
01-180 | 4B8072 |
01-180 | 2A3548-01 |
General
Price and availability - none.
The practices and processes referred to in the procedure by the TASK numbers are in the SPM.
NOTE
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| Workshop Inspection Equipment | LOCAL | Workshop Inspection Equipment | ||
| Fluorescent Penetrant Inspection Equipment | LOCAL | Fluorescent Penetrant Inspection Equipment |
Consumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 05-021 WATERPROOF SILICON CARBIDE | 44197 | CoMat 05-021 |
Spares
NONESafety Requirements
NONEProcedure
Refer to Figure.
The maximum blend depth is 0.020 in. (0.508 mm).
Surface finish of the repaired area must be the same as the adjacent area.
Refer to SPM TASK 70-35-03-300-501.
Remove the nicks, scores, galls, chafing.
SUBTASK 73-22-51-350-051 Remove the Nicks, Scores, Galls, Chafing from the RH and LH Pressure Control Manifold Surface at Location 1
Refer to Figure.
Remove any burrs.
Bolt holes at location 2.
The maximum blend depth is 0.010 in. (0.25 mm).
Refer to SPM TASK 70-35-03-300-501.
Hand polish and blend.
Flange surface at location 3.
Remove high metal only.
Do not blend on groove.
Refer to SPM TASK 70-35-03-300-501.
Hand polish high metal.
Seal surfaces at location 4.
SUBTASK 73-22-51-350-052 Remove the Nicks, Scores, Dents from the RH and LH Pressure Control Manifold End Fitting
Refer to Figure.
The maximum blend depth is 0.005 in. (0.12 mm).
Refer to SPM TASK 70-35-03-300-501.
Hand polish and blend.
SUBTASK 73-22-51-350-053 Remove the Damage from the RH and LH Pressure Control Manifold Ferrule at Location 5
Refer to Figure.
Refer to SPM TASK 70-35-03-300-501.
Use a fine file or honing stone.
Remove the burrs and pick-up on the threads.
SUBTASK 73-22-51-350-054 Remove the Damage from the RH and LH Pressure Control Manifold Nut at Location 6
Refer to SPM TASK 70-23-05-230-501.
Make sure there are no cracks.
Do a crack test on the repaired area.
SUBTASK 73-22-51-230-053 Examine the RH and LH Pressure Control Manifold for Cracks
Figure: Locations on the RH and LH Pressure Control Manifold
Locations on the RH and LH Pressure Control Manifold
