Presented to:

2009 U.S. Army Corrosion Summit2009 U.S. Army Corrosion Summit

Engineering Support / Corrosion PreventionEngineering Support / Corrosion Prevention& Control Evaluation& Control EvaluationEngineering Support / Corrosion PreventionEngineering Support / Corrosion Prevention& Control Evaluation& Control Evaluation

February 5, 2009

Presented by:

Don R. DuranDon R. DuranAviation and Missile Research,

Development and Engineering Center

Approved for public release; distribution unlimited. ReviewApproved for public release; distribution unlimited. Reviewcompleted by the AMRDEC Public Affairs Office. 12 Jan 2009;completed by the AMRDEC Public Affairs Office. 12 Jan 2009;FN3805.FN3805.

Approved for public release; distribution unlimited. ReviewApproved for public release; distribution unlimited. Reviewcompleted by the AMRDEC Public Affairs Office. 12 Jan 2009;completed by the AMRDEC Public Affairs Office. 12 Jan 2009;FN3805.FN3805.

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1. REPORT DATE 05 FEB 2009 2. REPORT TYPE

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4. TITLE AND SUBTITLE Engineering Support / Corrosion Prevention & Control Evaluation

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7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) U.S. Army Research, Development and Engineering Command, Aviationand Missile Research, Development and Engineering Center ,600Chennault Circle,Redstone Arsenal,AL,35898

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13. SUPPLEMENTARY NOTES 2009 U.S. Army Corrosion Summit, 3-5 Feb, Clearwater Beach, FL

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Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std Z39-18

Our ServicesOur Services

•Aircraft Corrosion•Corrosion Prevention & ControlEvaluation•3D Mapping

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•3D Mapping•Pressure Washing

•Engineering Support•Maintenance Engineering Calls•Maintenance Engineering Order•Corrosion Prevention Techniques•ACE/Corrosion website

AHAH--64 A/D64 A/D

AircraftAircraftCorrosionCorrosion

CHCH--47 D/F47 D/FAHAH--64 A/D64 A/D

OHOH--58 D58 DUHUH--60 A/L/M60 A/L/M

Corrosion Prevention & Control EvaluationCorrosion Prevention & Control Evaluation

•CPCE is performed concurrently withthe Airframe Condition Evaluation(ACE)

•The evaluation collects

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•The evaluation collectsenvironmental, operational,and maintenance data

•These variables enable MaintenanceEngineering Division (MED) todevelop corrosion preventionmeasures for Army-wideimplementation

CPCE: In The FieldCPCE: In The Field

•Trained ACE evaluators examineaircraft using Technical Bulletinsdeveloped for each platform

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•Evaluators document defects ofindicators for each aircraft withlocation positioning F.S., W.L., B.L.

•Discrepancy Data gathered in field,compiled in ACE Database, andevaluated by the MED

3-D Mapping3-D Mapping

Trend ofCRACKING

•Quick visual reference of defectsidentified during evaluations

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CRACKING• Provides historical data for long-termtrend analysis

• User defined queries allow fordetailed analysis

AH-64 CorrosionAH-64 Corrosion

Corrosion 2004-2008

2004 - 2008

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CH-47 CorrosionCH-47 Corrosion

Corrosion 2004-2008

2004 - 2008

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UH-60 CorrosionUH-60 Corrosion

Corrosion 2004-20082004 - 2008

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OH-58 CorrosionOH-58 Corrosion

Corrosion 2004-2008

2004 - 2008

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Extreme surfacecorrosion in fuel cell

area

Corrosion PreventionCorrosion Prevention

Corrosion can be prevented by:Corrosion can be prevented by:

1. Education: Corrosion training

2. Performing requiredmaintenance inspections toidentify corrosion

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CorrodedStringer

identify corrosion

3. Performing good maintenancepractices: use TMs, protectworking surfaces, wash andclean on schedule

4. Using QPL approved cleanersand Corrosion PreventiveCompounds (CPC)

Pressure WashingPressure Washing

Gen-MIM-2005-005 &TM 1-1500-344-23::

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Gen-MIM-2005-005 &TM 1-1500-344-23::1. Use of Foam Cleaning methods2. Maximum of 175 PSI w/ fixed, flat, wide-angle

nozzles (> 30 Degrees), 12 inches from surface3. Rinse at an angle between 15 and 30 degrees4. High pressure causes:

• Removes and damages paints and sealants• Forces water into seals• Structural damage to joints/honeycomb/thin

structures.• Water intrusion into electronic components

AHAH--64 A/D64 A/D

EngineeringSupport

CHCH--47 D/F47 D/FAHAH--64 A/D64 A/D

OHOH--58 D58 DUHUH--60 A/L/M60 A/L/M

Maintenance Engineer CallMaintenance Engineer Call

•MEC: Are initiated by depot or fieldmaintenance personnel requestingAMRDEC engineering support

•Typical requests are for deviations,

OH-58 XMSN Strap

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AH-64 Engine Mount

•Typical requests are for deviations,special repairs, and to resolve DMWRinadequacies

•Engineering dispositions includeclarifications, one time deviations, or shortterm deviations for depot programs (< 30days)

Maintenance Engineer OrderMaintenance Engineer Order

•MEO: These engineering documentsare issued to enact permanentchanges to AMCOM DepotMaintenance Work Requirements(DMWRs) or Technical Manuals (TMs)

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AH-64 Engine MountCH-47 Floor Former

Corrosion Prevention TechniquesCorrosion Prevention Techniques

•Past and Present Initiatives•RockHard Coating•Av-Dec seals•Cor-Ban CPCs•Dual-Tape Connector Wrap

•Future Initiatives

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•Future Initiatives•Army-wide use of Tagnite for Mgcomponents•Envelop Protective Covers•Laser cladding•Pre-manufacturing technologies

•Advanced metals•Advanced composites•Advanced adhesives•Ect….

ConclusionConclusion

•CPCE enables early detection ofemerging structural and corrosionissues

•ACE/CPCE data collectiondefines the impact of corrosionand aircraft stresses

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and aircraft stresses

•Analysis of ACE/CPCE dataprovides solutions that willcontinue to reduce the cost ofmaintenance and promotereadiness

Welcome to the Aviation EngineeringDirectorate (AED)- Maintenance Engineering

Division (MED) ACE/Corrosion Website

The site provides you ACE & Corrosion Prevention resources and a placeThe site provides you ACE & Corrosion Prevention resources and a placefor your comments & questions. Contact us @

DSN 861-4041(361) 961-4041

or E-mail at: corrosion@amrdec.army.mil

Questions?