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 72-32-70-200-004-D00 LPC Bleed Valve Arm Pins - Examine, Inspection-004
General
This TASK gives the procedure for the inspection of the valve ring assembly.
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 TASK 72-32-70-100-000 (CLEANING-000).
All the 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.
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 the 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 the TASK numbers are in the SPM.
References
Refer to the SPM for data on these items.
Definition of Damages, SPM TASK 70-02-02-350-501.
Inspection of Parts, SPM 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
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 72-32-70-100-000 (CLEANING-000).
SUBTASK 72-32-70-230-067 Examine the Pin for Cracks
Refer to Figure.
Repair, VRS1739 TASK 72-32-70-300-004 (REPAIR-004).
Up to 0.005 in. (0.12 mm) in depth.
Reject.
More than 0.005 in. (0.12 mm) in depth.
Galled.
Repair, VRS1739 TASK 72-32-70-300-004 (REPAIR-004).
Reject.
More than 0.005 in. (0.12 mm) in depth.
Up to 0.005 in. (0.12 mm) in depth.
Scratched.
Reject.
Corroded.
Examine all the surfaces (except plating area at Location 1).
SUBTASK 72-32-70-220-120 Examine the Pin Surface
Refer to Figure.
Accept.
If the diameter is between 0.2467 in. and 0.2472 in. (6.266 mm and 6.281 mm).
Write down the dimension of the diameter.
Reject.
If the diameter is less than 0.2467 in. (6.266 mm).
Worn.
Examine the diameter at Location 0485.
SUBTASK 72-32-70-220-121 Examine the Pin Diameter
Refer to Figure.
Reject.
Peeled.
Reject.
Chipped.
Repair, VRS1739 TASK 72-32-70-300-004 (REPAIR-004).
Up to 0.002 in. (0.05 mm) in depth.
Reject.
More than 0.002 in. (0.05 mm) in depth.
Galled.
Repair, VRS1739 TASK 72-32-70-300-004 (REPAIR-004).
Up to 0.002 in. (0.05 mm) in depth.
Reject.
More than 0.002 in. (0.05 mm) in depth.
Scratched.
Examine the plating area at Location 1.
SUBTASK 72-32-70-220-122 Examine the Pin Plating
Figure: Locations On The Pin
Locations On The Pin
