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 72-32-54-200-003 No. 1 Bearing Nut - Examine, Inspection-003
General
This TASK gives the procedure for the inspection of the Nuts. For the other parts of the No. 1 bearing, refer to TASK 72-32-54-200-000.
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 70-20-01-200-501.
All the parts must be cleaned before any part is examined. Refer to TASK 72-32-54-100-000 (CLEANING-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.
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 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.
Definitions of Damage, SPM TASK 70-02-02-350-501
Inspection of Parts, SPM TASK 70-20-01-200-501
General Information for Magnetic Particle Inspection, SPM TASK 70-24-00-240-501
Some data on these items are contained in this TASK. For more data on these items refer to the SPM.
Method of Testing for Crack Indications
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDER | LOCAL | CoMat 06-011 |
Spares
NONESafety Requirements
NONEProcedure
Clean the parts. Refer to TASK 72-32-54-100-000 (CLEANING-000).
Do the test for cracks on the parts that are given below. Use the applicable magnetic particle procedure.
PART IDENT
PROCEDURE
CURRENT/INSPECT
TASK/SUBTASK
Nut
Threading Bar inspect using continuous wet or simultaneous inking with CoMat 06-011 MAGNETIC PARTICLES, FLUORESCENT, DRY POWDER
500 amp Nut outside diameter visually inspect for longitudinal and radial defects. Check doubtful indications using low power magnification. If necessary, inspect under white light at 15X binocular
1-turn solenoid continuous wet or simultaneous inking
2000 A/T Do again the magnetisation and inspection along nut length. Visually inspect for circumferential defects. Check doubtful indications using low power magnification. If necessary, inspect under white light at 15X binocular
SUBTASK 72-32-54-240-051 Examine the Nut (01-120) for Cracks
Refer to Figure.
Repair, VRS1297 TASK 72-32-54-300-002 (REPAIR-002)
Nicked
Repair, VRS1297 TASK 72-32-54-300-002 (REPAIR-002)
Scored
Repair, VRS1297 TASK 72-32-54-300-002 (REPAIR-002)
Burred
SUBTASK 72-32-54-220-053 Examine the Nut (01-120)
Refer to Figure.
SUBTASK 72-32-54-220-063 Examine the Thread at location 1
Refer to Figure.
Repair, VRS1298 TASK 72-32-54-300-003 (REPAIR-003)
Missing, peeling or damaged silver plating
SUBTASK 72-32-54-220-064 Examine the Contact Face at location 2
Refer to Figure.
Repair, VRS1299 TASK 72-32-54-300-004 (REPAIR-004)
Apply the dry film lubricants to the thread
SUBTASK 72-32-54-380-002 Apply the Dry Film Lubricant at location 1
Figure: Nut
Nut
