ATT_0013_MEO_D1861_FAN_VANEAXIAL.pdf

MAINTENANCE ENGINEERING ORDER

(AMCOM Reg. 750-2)

MEO NO.

DATE PAGE 1 of

TITLE Tolerances Unless otherwise noted, dimensions are in inches and tolerances are:

Fractional ………………… ± 1/32 Decimal ………………... ± 0.010 Angular ………………… ± ½°

APPLICABILITY CSI Critical Characteristic Affected?

Impact Statement Attached?

REFERENCES FOR RDECOM USE ONLY

DOCUMENT(S) AFFECTED

PURPOSE OR PROBLEM

PROJECT ENGINEER ENGINEERING REVIEW ENGINEERING RELEASE

MED FORM 5-DEC-09 1401-R-E

D 1861 Mar 24, 2016 2

Conversion Coating addition for CH-47 Vaneaxial Fan Assembly, Combiner Transmission, P/N 41360-2 (145DS518-6)

Technical

INTERIM USE OF THIS MEO IS AUTHORIZED

UNTIL AFFECTED DOCUMENT IS UPDATED.

MEO CHANGE TYPE

3) High - Has a business or process impactPRIORITY IMPLEMENTATION CATEGORY

CH47 DAA

DMWR 55-4140-225 (30 AUG 2013) MEC D308582 12 FEB 2016

DOCUMENT CHANGE IS REQUIRED Verification: Hands-On Table-Top None

Add conversion coating for impellers in repair and update App C.

CASTILLO.NO

EL.1089736990

Digitally signed by

CASTILLO.NOEL.1089736990

DN: c=US, o=U.S. Government, ou=DoD, ou=PKI, ou=USA, cn=CASTILLO.NOEL.1089736990 Date: 2016.03.14 13:16:49 -05'00'

CAREL.PAMELA.

KAY.1125864534

Digitally signed by

CAREL.PAMELA.KAY.1125864534

DN: c=US, o=U.S. Government, ou=DoD, ou=PKI, ou=USN, cn=CAREL.PAMELA.KAY.1125864534 Date: 2016.03.14 12:52:49 -05'00'

Pamela Carel (Torch)

SOLBERG.JOH

N.B.1230311427

Digitally signed by

SOLBERG.JOHN.B.1230311427

DN: c=US, o=U.S. Government, ou=DoD, ou=PKI, ou=USA, cn=SOLBERG.JOHN.B.1230311427 Date: 2016.03.14 13:26:17 -05'00'

Noel Castillo John Solberg PUBLICATION CHANGE REQUEST: REQUEST THAT THE FOLLOWING DATA BE INCLUDED IN THE NEXT

CHANGE OR REVISION TO THE PUBLICATION IDENTIFIED ABOVE.

WP NO. PAGE

NO.

PARA-

GRAPH

FIGURE/

TABLE

NO.

CHANGES

(EXACT WORDING OF CHANGES MUST BE GIVEN)

3-24

3-25

3-20.1.

3-20.2.a.

3-21.a.

(2)

3-21.b.

(9)

Change (item 25, Appendix C) to "(item 46, Appendix C)"

Change (item 25, Appendix C) to "(item 46, Appendix C)"

Change to read:

"Coat repairs with Dow No. 19, (Item 37, Appendix C) per SAE AMS-M-3171, Type VI."

Subparagraph after 3-21.a.(4) should be labeled "b." in front of "Vaneaxial Fan Housing, Mounting Holes, Corrosion and Oversize ID Repair."

Prior to subparagraph, add Warning:

"WARNING

Conversion Coating, DOW NO. 1 Dow No. 1 is toxic. It affects eyes, skin, and respiratory tract. Protection:

chemical splashproof goggles, gloves, and forced ventilation (or respiratory); keep container closed; keep sparks, flames, and heat away.

Keep chemical film off skin, eyes, and clothes; do not breathe vapors."

Distribution Statement D:- Distribution authorized to Department of Defense and U.S. DoD contractors only to protect critical technology effective as of 26 June 2014. Other requests for this document must be referred to U.S. Army Aviation and Missile Research, Development and Engineering Center, ATTN: RDMR -AEM , Corpus Christi, TX 78419-5211

MED FORM 28 JAN 2016

MAINTENANCE ENGINEERING ORDER

(AMCOM Reg. 750-2) Continuation Sheet

MEO NO.

PAGE of

WP NO. PAGE

NO.

PARA-

GRAPH

FIGURE/

TABLE

NO.

CHANGES

(EXACT WORDING OF CHANGES MUST BE GIVEN)

MED FORM 15-DEC-09 1401-R-E

3-25

3-29

3-40

C-2

(9)

3-23.c. (6)

3-26.b. (3)

Appendix C

Change to read:

"Touch up reworked areas and adjacent faces with Dow No. 1 (Item 12, Appendix C) or Dow No. 19 (Item 37, Appendix C) per SAE AMS-M-3171, Type I or Type VI, respectively."

Change subparagraph to read:

"After touch-up, chromate pickle magnesium parent metal surface using Dow No.

1 (Item 12, Appendix C) or Dow No. 19 (Item 37, Appendix C) per SAE AMS-M-3171, Type I or Type VI, respectively, touch up area with epoxy black paint (Item 40, Appendix C)."

Change subparagraph to read:

"Repair anodized magnesium surfaces of impellers (1 and 5) and housing assembly (24) with Dow No. 1 (Item 12, Appendix C) or Dow No. 19 (Item 37, Appendix C) IAW SAE AMS-M-3171, Type I or Type VI, respectively."

Item 37, Delete NSN Item 37, Change Description to read: "Dow No. 19, SAE AMS-M-3171, Type VI"

MED FORM 28 JAN 2016

D 1861