**************** UNCLASSIFIED // FOR OFFICIAL USE ONLY (FOUO) **************** Subject: TACOM LCMC GPA 16-009, M777A2 155MM TOWED HOWITZER - VISUAL INSPECTION REQUIRED FOR POSSIBLE WHEEL HUB CRACKS DTG: 262057Z FEB 16 Precedence: PRIORITY DAC: General -------------------------------------------------- UNCLASSIFIED//FOR OFFICIAL USE ONLY SUBJ/TACOM LCMC GPA 16-009, M777A2 155MM TOWED HOWITZER - VISUAL INSPECTION REQUIRED FOR POSSIBLE WHEEL HUB CRACKS SUBJECT:GROUND PRECAUTIONARY ACTION (GPA) MESSAGE, TACOM LIFE CYCLE MANAGEMENT COMMAND, (TACOM LCMC) CONTROL NO. GPA 16-009, (MAINTENANCE MANDATORY), M777A2 155MM TOWED HOWITZER - VISUAL INSPECTION REQUIRED FOR POSSIBLE WHEEL HUB CRACKS. MODELS AFFECTED: M777A2, HOWITZER, MEDIUM, TOWED, 155MM, 1025-99-463-7551, H57916 TOTAL DENSITY OF EQUIPMENT AFFECTED IS 1090, AND DENSITY OF EQUIPMENT AFFECTED IN SWA IS 7. XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX X "ATTENTION" X X THIS MESSAGE CONTAINS INFORMATION THAT IS VITAL X X TO THE SAFETY OF ARMY PERSONNEL AND THE OPERATION X X OR MAINTENANCE OF ARMY EQUIPMENT X XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX REFERENCES: "NO PREVIOUS SAFETY OR MAINTENANCE MESSAGES ARE KNOWN FOR THIS EQUIPMENT AND STATED SAFETY ISSUE." SYNOPSIS: M777A2 WHEEL HUB (NSN 3040-99-334-8370) THE OFFICE OF THE PROJECT MANAGER FOR TOWED ARTILLERY SYSTEMS (PM TAS) RECEIVED A REPORT FROM THE 1-37 FIELD ARTILLERY, FORT LEWIS, WA ON 10 FEBRUARY 2016 STATING THAT 11 OF 12 M777A2 HOWITZERS IN THEIR FLEET WERE IDENTIFIED AS HAVING CRACKED WHEEL HUBS. PM TAS HAS DETERMINED THAT THE NATURE OF THE WHEEL HUB DAMAGE WILL RESULT IN THE EQUIPMENT BEING NOT FULLY MISSION CAPABLE (NMC). 1. RECEIPT ACKNOWLEDGEMENT: THIS IS A MAINTENANCE MANDATORY GROUND PRECAUTIONARY ACTION MESSAGE. COMMANDERS/DIRECTORS OF ARMY COMMANDS (ACOM)/ARMY SERVICE COMPONENT COMMANDS (ASCC)/DIRECT REPORTING UNITS (DRU), ARMY NATIONAL GUARD (ARNG), US ARMY RESERVE (USAR) COMMAND, US NAVY (USN), US AIR FORCE (USAF), US MARINE CORPS (USMC) AND OTHER SERVICE COMMANDERS AND RESPONSIBLE OFFICES WILL RETRANSMIT THIS MESSAGE TO ALL SUBORDINATE COMMANDERS/ACTIVITIES WITHIN 24 HOURS OF RECEIPT AND WILL, WITHIN 3 WORKING DAYS, ACKNOWLEDGE RECEIPT FOR ALL GROUND SAFETY AND MAINTENANCE MESSAGES USING THE MODIFICATION MANAGEMENT INFORMATION SYSTEM (MMIS) 2. COMPLIANCE REPORTING: COMMANDERS/DIRECTORS OF ARMY COMMANDS (ACOM)/ARMY SERVICE COMPONENT COMMANDS (ASCC)/DIRECT REPORTING UNITS (DRU), ARMY NATIONAL GUARD (ARNG), US ARMY RESERVE (USAR) COMMANDS AND OTHER RESPONSIBLE OFFICES, WILL TRACK COMPLIANCE IN MMIS UNTIL 100% COMPLETE. COMPLIANCE WILL NOT EXCEED 5 DAYS FROM THE DATE OF THIS MESSAGE. ENTRY INTO MMIS IS CAC PROTECTED AND REQUIRES LOGIN THROUGH THE LOGISTICS INFORMATION WAREHOUSE (LIW). THE WEB SITE FOR LIW IS HTTPS://LIW.LOGSA.ARMY.MIL/. MMIS APPLICATION CAN BE FOUND IN THE LIW APP WAREHOUSE. FOR INSTRUCTIONS ON HOW TO REPORT COMPLIANCE, USE THE MMIS HELP FUNCTION OR CONTACT THE MMIS HELPDESK AT USARMY.REDSTONE.LOGSA.MBX.MMIS@MAIL.MIL 3. MESSAGE LIBRARY: THIS MESSAGE WILL BE AVAILABLE ON THE SAFETY FIRST WEB SITE LOCATED ON THE TACOM-UNIQUE LOGISTICS SUPPORT APPLICATIONS (TULSA) PORTAL WITHIN TWENTY-FOUR HOURS OF TRANSMISSION. ACCESS TO THE SAFETY FIRST WEB SITE REQUIRES CAC AUTHENTICATION. YOU MUST FIRST REQUEST ACCESS TO THE SAFETY FIRST WEB SITE. TO REQUEST ACCESS, GO TO HTTPS://TULSA.TACOM.ARMY.MIL. FOR ASSISTANCE, EMAIL THE TULSA HELPDESK AT TACOM-LCMC.ILSC_TULSA@MAIL.MIL. THE SAFETY FIRST WEB SITE ALSO HAS THE CAPABILITY TO EMAIL SAFETY MESSAGES DIRECTLY TO YOUR INBOX. TO SUBSCRIBE TO THE MAILING LIST, CLICK ON E-MAIL SUBSCRIPTIONS ON THE NAVIGATION BAR. 4. PROBLEM: A. SUMMARY OF PROBLEM.1-37TH FA OUT OF FORT LEWIS, WASHINGTON DISCOVERED DURING MANEUVER TRAINING AT YAKIMA TRAINING AREA THAT ONE OF THEIR M777A2 HOWITZERS HAD A CRACKED WHEEL HUB. UPON FURTHER INSPECTION THEY FOUND THAT 11 OUT OF 12 GUNS HAD CRACKED WHEEL HUBS. B. EXPECTED RESULTS IF FAILURE OCCURS.SEPARATION OF THE WHEEL AND TIRE ASSEMBLY RESULTING FROM A CRACKED OR BROKEN WHEEL HUB DURING TOWING OF THE M777 HOWITZER OR DURING ITS NORMAL INTENDED USE MAY RESULT IN SERIOUS INJURY TO PERSONNEL OPERATING THE EQUIPMENT OR IN THE IMMEDIATE AREA OF ITS OPERATION AND/OR DAMAGE TO THE EQUIPMENT. 5. USER ACTIONS: A. USERS WILL IMMEDIATELY LIMIT OPERATIONS (NO TOWING, OUT OF TRAVERSE OR DISPLACEMENT OPERATIONS) UNTIL WHEEL HUBS ARE INSPECTED. REMOVE THE WHEEL AND TIRE ASSEMBLY AND VISUALLY INSPECT THE WHEEL HUB (NSN 3040-99-334-8370) FOR CRACKS (PLEASE REFER TO THE LINKS AT THE BOTTOM OF THIS PARAGRAPH FOR PHOTOS OF CRACKED HUBS). UPON COMPLETION OF THE INSPECTION REPORT COMPLIANCE IN MODIFICATION MANAGEMENT INFORMATION SYSTEM (MMIS) IAW PARAGRAPH 2. IF NO CRACKS ARE FOUND THE HOWITZER CAN BE RETURNED TO SERVICE. IF CRACKS ARE DISCOVERED THE EQUIPMENT WILL BE PLACED IN NMC STATUS UNTIL THE WHEEL HUB HAS BEEN REPLACED. B. INSPECTION OF THE WHEEL HUB IS A FIELD LEVEL MAINTENANCE TASK. C. UNITS WILL HAVE 5 DAYS FROM RECEIPT OF THIS MESSAGE TO COMPLETE INSPECTION OF THE M777A2 WHEEL HUB ASSEMBLY AND REPORT COMPLIANCE IN MMIS. D. WHEEL HUB NSN: 3040-99-334-8370 E. UNITS WILL REQUISITION THE PARTS NEEDED THROUGH THE DOD SUPPLY SYSTEM. ATTACHMENTS: HTTPS://TULSA.TACOM.ARMY.MIL/SAFETY/?T=GPM&F=M777A2CRACKHUB1.JPG HTTPS://TULSA.TACOM.ARMY.MIL/SAFETY/?T=GPM&F=M777ACRACKHUB2.JPG 6. UNIT COMMANDERS: A. COMMANDERS SHALL DIRECT IMMEDIATE INSPECTION OF M777A2 WHEEL HUBS TO IDENTIFY CRACKS, AND ENSURE PERSONNEL REPORT COMPLIANCE IN MODIFICATION MANAGEMENT INFORMATION SYSTEM (MMIS). LIMIT OPERATIONS (NO TOWING, OUT OF TRAVERSE OR DISPLACEMENT OPERATIONS) UNTIL WHEEL HUBS ARE INSPECTED. B. CONTACT YOUR LOCAL TACOM LCMC LOGISTICS ASSISTANCE REPRESENTATIVE (LAR) OR YOUR STATE SURFACE MAINTENANCE MANAGER UPON RECEIPT OF THIS MESSAGE FOR ASSISTANCE. FOR ASSISTANCE IN LOCATING YOUR TACOM LCMC LAR, SEE PARAGRAPH 9D. 7. TACOM LCMC/PM ACTIONS: A. PUBLICATIONS:THE REVIEW OF THE TM 9-1025-215-24&P HAS BEEN COMPLETED AND REVISED INSTRUCTIONS HAVE BEEN DEVELOPED. A WHITE PAPER HAS BEEN WRITTEN TO COVER INSTALLATION OF THE WHEEL ASSEMBLY UNTIL THE MANUALS ARE UPDATED. PLEASE REFER TO THE LINK AT THE BOTTOM OF THIS PARAGRAPH FOR THE REVISED INSTRUCTIONS FOR THE INSTALLATION OF THE WHEEL ASSEMBLY. B. FOLLOW-UP ACTION(S):TM 9-1025-215-23&P WILL BE UPDATED WITH THE REVISED INSTRUCTIONS. ESTIMATED COMPLETION DATE OF THE UPDATE IS 3RD QTR FY 2016. C. ASSISTANCE TO THE FIELD:WITH THE SHIPMENT OF 24 HUBS TO FORT LEWIS, THE OFFICIAL NUMBER OF WHEEL HUBS AVAILABLE IN WHOLESALE INVENTORY STOCK IS 3. DUE TO THE LONG LEAD TIME FOR ADDITIONAL REPLACEMENT HUBS, EFFORTS ARE BEING UNDERTAKEN TO HARVEST SERVICEABLE HUBS FROM NEW PRODUCTION AND EXCESS ASSETS TO MITIGATE READINESS IMPACTS SHOULD REPLACEMENT REQUIREMENTS EXCEED CURRENT WHOLESALE INVENTORY AVAILABLE FOR ISSUE. ATTACHMENTS: HTTPS://TULSA.TACOM.ARMY.MIL/SAFETY/?T=GPM&F=WHEELASSYINSTRS.PDF 8. SUPPLY STATUS: A. PARTS REQUIRED:IF WHEEL HUB IS CRACKED THE FOLLOWING PARTS WILL NEED TO BE REQUISITIONED: WHEEL HUB: 3040-99-334-8370 WHEEL STUD: 5307-99-549-9227 (8 EACH) SEAL KIT WHEEL HUB: 3100-99-813-3595 BEARING TAPERED: 3110-01-155-5373 BEARING TAPERED: 3110-01-526-1503 LOCKNUT: 5310-99-513-4790 (10 EACH) SCREW, CAP HEXAGON: 5305-99-349-5740 (10 EACH) WASHER HDS: 5310-99-729-7359 (10 EACH) B. REQUISITIONING INSTRUCTIONS:UNITS ARE REQUIRED TO REQUISITION THE PARTS NEEDED THROUGH THE DOD SUPPLY SYSTEM. C. DISPOSITION/AVAILABILITY:BAE HAS BEEN IN CONTACT WITH THE WHEEL HUB SUPPLIER (HORSTMAN) TO VALIDATE REQUIREMENTS AND SCHEDULE FOR PRODUCTION DELIVERIES OF REPLACEMENT HUBS. D. WHO PAYS:WHEEL HUB REPLACEMENT COSTS ARE A UNIT RESPONSIBILITY. 9. POCS: A. THE ORIGINATOR OF THIS MESSAGE IS TODD MOHR, TODD.A.MOHR2.CIV@MAIL.MIL, COMMERCIAL 586.282.2509, DSN 786.2509, AMSTA-LCG-FSL. B. THE EQUIPMENT SPECIALIST POC IS TODD MOHR, TODD.A.MOHR2.CIV@MAIL.MIL, COMMERCIAL 586.282.2509, DSN 786.2509, AMSTA-LCG-FSL. C. THE MECHANICAL ENGINEER POC IS JONATHAN KING, JONATHAN.D.KING42.CIV@MAIL.MIL, COMMERCIAL 973.724.7657, DSN 786.7657, SFAE-AMO-TAS. D. TO FIND YOUR TACOM LCMC LAR, CONTACT THE TACOM LCMC SENIOR COMMAND REPRESENTATIVE (SCR) FOR YOUR AREA. (1) CONUS-EAST REGION INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN WISCONSIN, ILLINOIS, MICHIGAN, INDIANA, OHIO, KENTUCKY, TENNESSEE, MISSISSIPPI, ALABAMA, GEORGIA, FLORIDA, LOUISIANA, SOUTH CAROLINA, NORTH CAROLINA, VIRGINIA, WEST VIRGINIA, MARYLAND, DELAWARE, PENNSYLVANIA, NEW JERSEY, CONNECTICUT, RHODE ISLAND, MASSACHUSETTS, NEW YORK, NEW HAMPSHIRE, VERMONT, MAINE AND FORSCOM. CONUS-EAST SCR CAN BE REACHED AT DSN 312-236-6921, COMMERCIAL 910-396-6921. (2) CONUS-WEST REGION INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN NORTH DAKOTA, SOUTH DAKOTA, MINNESOTA, NEBRASKA, IOWA, MISSOURI, KANSAS, OKLAHOMA, ARKANSAS, TEXAS, COLORADO, MONTANA, AND WYOMING. CONUS-WEST SCR CAN BE REACHED AT DSN 312-737-0263, COMMERCIAL 254-287-0263. (3) PACIFIC REGION INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN WASHINGTON, OREGON, IDAHO, NEVADA, UTAH, ARIZONA, ALASKA, HAWAII, CALIFORNIA, NEW MEXICO AND GUAM. PACIFIC SCR CAN BE REACHED AT DSN 312-347-5172, COMMERCIAL 253-966-5172. OCONUS PACIFIC (HAWAII) DSN 315-438-4985 COMMERCIAL 808-438-4985 (4) EUROPE REGION INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN GREAT BRITAIN, GERMANY, BELGIUM, LUXEMBURG, ITALY, BOSNIA, KOSOVO, AND MACEDONIA. EUROPE SCR CAN BE REACHED AT DSN 314-483-4090, COMMERCIAL 011-49-631-411-4090, IN GERMANY, 0631-411-4090. (5) FAR EAST REGION INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN KOREA, OKINAWA, KWAJALEIN, AND JAPAN. FAR EAST SCR CAN BE REACHED AT DSN 315-768-7943, COMMERCIAL 011-82-503-368-7943. (6) SWA - KUWAIT INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND, RESERVE UNITS IN KUWAIT. SWA - KUWAIT SCR AT CAMP ARIFJAN CAN BE REACHED AT DSN 318-430-4189. (7) SWA OEF REGION (AFGHANISTAN) SWA, REGION OEF INCLUDES ALL ACTIVE DUTY, NATIONAL GUARD AND RESERVE UNITS IN AFGHANISTAN. SWA REGION 401ST AFSB OEF SCR CAN BE REACHED AT DSN 312-864-4814. (8) FOR US SPECIAL OPERATIONS COMMAND CONTACT, SPECIAL OPERATIONS FORCES SUPPORT ACTIVITY (SOFSA), USSOCOM LOGISTICS HELPDESK, DARYL ELLIS DARYL.R.ELLIS.CTR@LMCO.SOFSA.MIL AT DSN: 745-3114, COMMERCIAL 859-566-4198 OR TOLL FREE 1-888-763-7259 OR EQUIPMENTHELPDESK@SOFSA.MIL.