4b. Sheave Roller Cast Billet_Engineering Change Order_1 Sheet.pdf

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Attached to
Heavy Weight Fairlead Beam Assemblies
Solicitation number
FA481925Q0006
Issued by

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Written by GovTribe AI ·

This is an Air Force Engineering Order (AFMC Form 3925) for a Sheave Casting (drawing number 201018857) used on the BAK-12 Aircraft Arresting System. The document shows an Advance Engineering Change Order (AECO) against Air Force owned drawings, with the reason marked as "Updated Drawing."

The key change described in the order is a material specification update for Location D4. The original specification required "MATERIAL SHALL BE ALUMINUM ALLOY A356-T6 SAND CASTED PER ASTM B26/B26M. GRADE SHALL BE GRADE B OR C PER AMS 2175. CASTING INSPECTION SHALL BE CLASS 1 PER AMS 2175." The new specification adds an alternative material option, allowing "CAST MATERIAL SHALL BE ALUMINUM ALLOY A356-T6 SAND CASTED PER ASTM B26/B26M OR BILLET 6061-T6." The grade and inspection requirements remain the same. The drawing has a CAGE code of 98752 and is size C, consisting of 1 sheet.

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ENGINEERING ORDER

1. ENGINEERING ORDER NO.

ENGINEERING ORDERAFMC Form 3925, 20150402

2. RELEASE DATE:

PAGE 1 OF PAGES

3. DWG TITLE 4. DWG ODA CAGE CODE 5. DWG NO. 6. DOC TYPE

7. NEXT HIGHER ASSY 8. USED ON 9. OPR CAGE CODE 10. DWG SIZE 11. DWG SHEET(s) AFFECTED 12. LATEST DWG REV

13. TYPE OF ENGINEERING ORDER 14. REASONS FOR CHANGE

ADVANCE ENGINEERING CHANGE ORDER (AECO)

AGAINST AIR FORCE OWNED DRAWINGS

DEVIATION AUTHORIZED

CHANGE NOTICE ENGINEERING ORDER (CNEO)

AIR FORCE CHANGES BEING INCORPORATED

INFORMATION "NON-TECHNICAL"

ADVANCED ENGINEERING SUPPLEMENTAL ORDER (AESO)

AIR FORCE REQUIREMENTS AGAINST A VENDOR OWNED DRAWING

ERROR CORRECTION

DESIGN CHANGE

DRAWING CLARIFICATION

UPDATED DRAWING

CRITICAL SAFETY ITEM (CSI)

15. EO PREPARED BY

16. CONFIG MANAGEMENT

17. DWG CHANGED BY

18. MATERIALS ENGINEER

19. CHECKER 20. CORROSION CONTROL

21. PROJECT ENGINEER 22. HCI / HARDNESS

24. ENG APPROVAL 25. NDI

23. DISPOSITION OF SPARES

N/A REWORK SCRAP REPLACE

27. AF AUTHENTICATION 28. SYSTEM SAFETY

26. DOCUMENTS AFFECTED (TO/TCTO/SPEC/OTHER)

30. AF RELEASE

29. OTHER COMMENTS

32. DESCRIPTION OF APPROVED CHANGES/REMARKS

33. DISTRIBUTION STATEMENT: (REQUIRED PER DoDI 5230.24)

SIGNATURE OFFICE SYM / PHONE OFFICE SYM / PHONESIGNATURE

31.

AFMC Form 3925, 20150402

PAGE

OF

PAGES

13. TYPE OF ENGINEERING ORDER

14. REASONS FOR CHANGE

AGAINST AIR FORCE OWNED DRAWINGS

AIR FORCE CHANGES BEING INCORPORATED

"NON-TECHNICAL"

AIR FORCE REQUIREMENTS AGAINST A VENDOR OWNED DRAWING

23. DISPOSITION OF SPARES

SIGNATURE

OFFICE SYM / PHONE

OFFICE SYM / PHONE

SIGNATURE

31.

11.0.1.20130826.2.901444.899636

TextField1: Sheave Casting
TextField1: 98752
TextField1: 201018857
TextField1: 201018858-10
TextField1: BAK-12 AAS
TextField1: 98752
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TextField1: Location D4:

WAS "MATERIAL SHALL BE ALUMINUM ALLOY A356-T6 SAND CASTED PER ASTM B26/B26M.

GRADE SHALL BE GRADE B OR C PER AMS 2175. CASTING INSPECTION SHALL BE CLASS 1 PER AMS 2175."

IS "CAST MATERIAL SHALL BE ALUMINUM ALLOY A356-T6 SAND CASTED PER ASTM B26/B26M OR BILLET 6061-T6.

GRADE SHALL BE GRADE B OR C PER AMS 2175. CASTING INSPECTION SHALL BE CLASS 1 PER AMS 2175. "

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