* * * FOR ALL
TASK 72-21-01-100-801
1 . General.
A.This procedure gives instructions to clean the forward fan containment case assembly (forward fan case). Refer to Figure 601.
•
Forward fan case (01-010 , 72-21-00) (SIN 83500)
•
Forward fan case (01-011 , 72-21-00) (SIN 83500)
•
Forward fan case (01-012 , 72-21-00) (SIN 83500) (SB 72-0039)
•
Forward fan case (01-013 , 72-21-00) (SIN 83500) (SB 72-0156).
2 . Tools, Equipment, and Materials.
NOTE:
You can use equivalent alternatives for tools, equipment, and consumable materials.
A.Tools and Equipment.
(1)Special Tools. None.
(2)Standard Tools and Equipment. None.
(3)Locally Manufactured Tools. None.
B.Consumable Materials. None.
C.Referenced Procedures.
 
ATA No.
Description
 
70-21-02
Vapor Degreasing
 
70-21-03
Steam Cleaning
 
70-21-22
Light Duty Aqueous Cleaning
 
70-21-23
Hand-Wipe Degreasing
 
70-46-01
Masking and Cleaning of Epoxy and Polyester Matrix Thermosetting Composite Materials
D.Expendable Parts. None.
3 . General Cleaning.
Subtask 72-21-01-350-001
A.Alternative Procedure Available. Pressure spray clean the forward fan case. Refer to TASK 70-46-01-350-030 (MASKING AND CLEANING OF EPOXY AND POLYESTER MATRIX THERMOSETTING COMPOSITE MATERIALS), Composite Cleaning Method No. 2, Hot or Cold Water Wash Pressure Spray Cleaning.
Subtask 72-21-01-350-002
A.A.Alternative Procedure. Hand wash the forward fan case. Refer to TASK 70-46-01-350-030 (MASKING AND CLEANING OF EPOXY AND POLYESTER MATRIX THERMOSETTING COMPOSITE MATERIALS), Composite Cleaning Method No. 3, Hot or Cold Water Hand Wash Cleaning.
Subtask 72-21-01-110-001
A.B.Alternative Procedure. Hand-wipe degrease the forward fan case. Refer to TASK 70-21-23-110-053 (CLEANING METHOD 23 - HAND-WIPE DEGREASING).
Subtask 72-21-01-110-002
A.C.Alternative Procedure. Vapor degrease the forward fan case. Refer to TASK 70-21-02-110-002 (CLEANING METHOD 2 - VAPOR DEGREASING).
Subtask 72-21-01-160-002
A.D.Alternative Procedure. Steam clean the forward fan case. Refer to TASK 70-21-03-160-001 (CLEANING METHOD 3 - STEAM CLEANING).
Subtask 72-21-01-110-003
A.E.  Alternative Procedure. Light duty aqueous clean the forward fan case. Refer to TASK 70-21-22-110-050 (CLEANING METHOD 22 - LIGHT DUTY AQUEOUS CLEANING (METHOD 2)).
* * * FOR ALL
* * * PRE SB   72-0039
Figure 601   (Sheet 1 ) Forward Fan Case
* * * FOR ALL
* * * SB   72-0039
* * * SB   72-0156
Figure 601   (Sheet 2 ) Forward Fan Case