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FROM
:CDRATCOM ST LOUIS MO//AMSAT-R-X//
TO
:AIG 8881
:AIG 9004
:AIG 8708
:AIG 9042
:AIG 7471
:AIG 12124
:USMILGP BUENOS AIRES AR//ARMY AND AF SEC//
:DEFAIR MATERIAL CANBERRA AS//DAAP-AF//
:ARMYLMSQN OAKEY AS
:AVN REGT HQ SQN OAKEY AS//DAVN-A//
:CDRUSARDSG CANBERRA AS//AMXIP-AS//
:LOGCON OTTAWA CAN//DTHEM 6-2//
:ARGENTINE AIR ATTACHE FMS WASHINGTON DC
:EGYPT AF FMS CAIRO EG//ED-MA//
:USOMC CAIRO EG//AV//
:ODC ATHENS GR//ODCSA//
:CHJUSMAG SEOUL KOR//MKAR//
:ROK ARMY FMS PUSAN KOR//ALC-LSD-L//
:CDR160TH SOAR FT CAMPBELL KY//AOAV-SI//
:CDRBGAD RICHMOND KY//SDSBG-GC//
:USDAO RABAT MO//AF//
:ODC THE HAGUE NL//AVIATION SAFETY//
:RNLAF MATERIAL
:RNLAF OPERATIONS
:CHUSAS RIYADH SA//ASAV//
:SAO SINGAPORE SN//AVIATION SAFETY//
:ODC MADRID SP//ASM//
:SPAIN ARMY FMS MADRID SP
:AIT TAIPEI TW
:TAIWAN ARMY FMS TAIPEI TW
:CJUSMAG THAI BANGKOK TH//MAGTAR-FS//
:ROYAL THAI ARMY FMS DUSIT ORDNANCE DEP BANGKOK TH
:CDRUSARDSG LONDON UK//AMXSN-UK-SE//
:ODC LONDON UK
INFO
:CDRAMC ALEXANDRIA VA//AMCMR/AMCCS/AMCSM-WAA//
XMT
:USDAO DHAKA BG
:USDAO RANGOON BM
:USCINCPAC REP PHNOM PENH CB
:USDAO COLOMBO CE
:USDAO SUVA FJ
:OMADP JAKARTA ID
:DSA NEW DELHI IN
:AMEMBASSY ANTANANARIVO MA
:AMEMBASSY PORT LOUIS
:SAO KUALA LUMPUR MY
:AMEMBASSY KATHMANDU NP//POL-MIL//
:AMEMBASSY VICTORIA
ACCT
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TEXT
:UNCLAS
SUBJECT - AVIATION SAFETY ACTION MESSAGE, MAINTENANCE
MANDATORY, RCS CSGLD-1860(R1), CH-47D, MH-47D, AND MH-47E,
TO INSPECT THE BOND LINES ON THE 114P8079-2 AND -3 STRAP
ASSEMBLIES FOR LOOSENESS AROUND THE EDGES. (CH-47-96-ASAM-
07) (TB 1-1520-240-20-86).
NOTE - THIS IS AN AVIATION SAFETY ACTION MESSAGE ISSUED PER
AR 95-3, CHAPTER 5 REVISION VIA MESSAGE HQ AVSCOM, AMSAV-
XSOF, 181900Z SEP 90, SUBJECT: CHANGE TO AR 95-3, CHAPTER
5, SAFETY OF FLIGHT MESSAGES. THIS MESSAGE HAS NOT BEEN
TRANSMITTED TO UNITS SUBORDINATE TO ADDRESSEES. ADDRESSEES
SHOULD IMMEDIATELY RETRANSMIT THIS MESSAGE TO ALL
SUBORDINATE UNITS, ACTIVITIES OR ELEMENTS AFFECTED OR
CONCERNED. THE RETRANSMITTAL SHALL REFERENCE THE MESSAGE.
ACTION ADDRESSES WILL IMMEDIATELY VERIFY THIS RETRANSMISSION
TO COMMANDER, ATCOM, ATTN - AMSAT-R-X (SOF COMPLIANCE
OFFICER).
1. PRIORITY CLASSIFICATION -
A. AIRCRAFT IN USE - UPON RECEIPT OF THIS MESSAGE THE
CONDITION STATUS SYMBOL OF THE CITED AIRCRAFT WILL BE
CHANGED TO A RED HORIZONTAL DASH //-//. THE RED HORIZONTAL
DASH //-// MAY BE CLEARED WHEN THE INSPECTION OF PARA 8
BELOW IS COMPLETED. THE AFFECTED AIRCRAFT SHALL BE
INSPECTED AS SOON AS PRACTICAL BUT NO LATER THAN THE
TASK/INSPECTION SUSPENSE DATE. FAILURE TO COMPLY WITH THE
REQUIREMENTS OF THIS MESSAGE WITHIN THE TIME FRAME WILL
CAUSE THE STATUS SYMBOL TO BE UPGRADED TO A RED //X//.
B. AIRCRAFT IN DEPOT MAINTENANCE - SAME AS PARA 1A.
C. AIRCRAFT UNDERGOING MAINTENANCE - SAME AS PARA 1A.
D. AIRCRAFT IN TRANSIT -
(1) SURFACE/AIR SHIPMENT - SAME AS PARA 1A.
(2) FERRY STATUS -
(A) SAME AS PARA 1A.
(B) THOSE AIRCRAFT THAT HAVE A DD250 AND ARE AT
BOEING HELICOPTER COMPANY WILL BE INSPECTED PRIOR TO FERRY
TO FINAL DESTINATION.
E. MAINTENANCE TRAINERS (CATEGORY A, B) - SAME AS PARA
1A.
F. COMPONENT/PARTS IN STOCK AT ALL LEVELS (DEPOT AND
OTHERS) INCLUDING WAR RESERVES - UPON RECEIPT OF THIS
MESSAGE THE MATERIAL CONDITION TAGS OF ALL ITEMS IN ALL
CONDITION CODES LISTED IN PARA 6 SHALL BE ANNOTATED TO READ
CH-47-96-ASAM-07, INSPECTION OF BOND LINES ON STRAP
ASSEMBLY. NOT COMPLIED WITH.
(1) WHOLESALE STOCK - REPORT RECEIPT OF THIS
MESSAGE IN ACCORDANCE WITH PARA 14C(1). UPON RECEIPT OF
THIS MESSAGE ALL SERVICEABLE ITEMS (CONDITION CODES //A//,
//B//,//C//,//D//, AND //E//) LISTED IN PARA 6 LOCATED IN
WHOLESALE DEPOT STORAGE SHALL BE PLACED IN CONDITION CODE
//J// AND TAGGED WITH A SUSPENDED TAG/LABEL - MATERIEL, DD
FORM 1576/DD FORM 1576-1. DO NOT REMOVE ORIGINAL CONDITION
TAGS. REPORT COMPLIANCE WITH THIS MESSAGE IN ACCORDANCE
WITH PARA 14D(1).
(2) RETAIL STOCK - REPORT RECEIPT OF THIS MESSAGE
IN ACCORDANCE WITH PARA 14C(2). UPON ECEIPT OF THIS MESSAGE
COMMANDERS AND OTHERS MAINTAINING RETAIL STOCK AT
INSTALLATION LEVEL AND BELOW SHALL CONTACT THE SUPPORTED
AVIATION UNIT TO PERFORM THE INSPECTION REQUIRED BY PARA 8
AND THE CORRECTION PROCEDURES OF PARA 9 ON DESREPANT
MATERIEL. REPORT COMPLIANCE WITH THIS MESSAGE IN ACCORDANCE
WITH PARA 14D(2).
2. TASK/INSPECTION SUSPENSE DATE - THIS INSPECTION/REPAIR
BE PERFORMED AT NEXT SCHEDULED MAINTENANCE.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 30
JULY 1996 PER PARA 14A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. FOLLOWING A PHASE MAINTENANCE INSPECTION, THE MH-
47E PROTOTYPE EXPERIENCED A COMPRESSOR STALL OF THE NO. 2
ENGINE. THE SILICONE RUBBER PAD (P/N 114P8073-27) FROM THE
STRAP ASSEMBLY (P/N 114P8079-3) HAD BEEN INGESTED INTO THE
ENGINE WITH SUBSEQUENT ENGINE FAILURE. THE STRAP ASSEMBLY
WAS REMOVED AND RETURNED TO BOEING HELICOPTERS FOR ANALYSIS.
THE RESULTS OF THAT ANALYSIS SHOWED THAT A POLYSULFIDE
SEALANT (PRO-SEAL 890) HAD BEEN USED ON THE STRAP ASSEMBLY
INSTEAD OF THE PRESCRIBED ADHESIVE.
B. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE PARA
12.
C. THE PURPOSE OF THIS MESSAGE IS TO CONDUCT A VISUAL
INSPECTION TO DETERMINE IF THE PROPER ADHESIVE HAS BEEN USED
ON THE SUBJECT STRAP ASSEMBLY AND CORRECTIVE PROCEDURES ARE
PROVIDED IF THE ASSEMBLY FAILS THE VISUAL INSPECTION.
5. END ITEMS TO BE INSPECTED - ALL CH-47D, MH-47D AND MH-
47E AIRCRAFT. MH-47E AIRCRAFT WHICH HAVE PREVIOUSLY DONE
THIS INSPECTION AND CORRECTIVE ACTION DURING THE COURSE OF
THE ORIGINAL INVESTIGATION, MAY RECORD COMPLIANCE WITH THIS
MESSAGE.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
STRAP ASSEMBLY, LH 114P8079-2 2945-01-033-8220
STRAP ASSEMBLY, RH 114P8079-3 2945-01-033-8219
7. PARTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
CUSHION, FAIRING 114P8073-27
8. INSPECTION PROCEDURES -
A. PREPARE THE AIRCRAFT FOR SAFE GROUND MAINTENANCE.
B. OPEN THE ENGINE WORK PLATFORMS.
C. REMOVE THE ENGINE AIR INLET SCREENS. (REF TM 55-
1520-240-23 TASK 4-65 FOR CH-47D/MH-47D, OR TM 1-1520-252-
23, TASK 4-26 FOR MH-47E).
D. INSPECT THE BOND LINES ON THE 114P8079-2 AND -3
STRAP ASSEMBLIES FOR LOOSENESS AROUND THE EDGES. THE EDGES
SHOULD BE SECURELY ADHERED AND SHOULD NOT LIFT UP. IF THE
STRAP ASSEMBLIES PASS THE INSPECTION, REINSTALL THE INLET
SCREENS ON THE AIRCRAFT AND THE INSPECTION IS COMPLETE. IF
STRAP ASSEMBLIES FAIL THE INSPECTION PROCEED TO PARAGRAPH 9
FOR CORRECTIVE ACTION.
9. CORRECTION PROCEDURES -
A. REMOVE EXISTING SILICONE RUBBER PAD FROM THE STRAP
ASSEMBLY.
B. FABRICATE A NEW PAD FROM SILICONE RUBBER BMS1-23,
DIMENSIONS 0.25 INCH THICK X 1.0 INCH WIDE X 24.0 INCHES
LONG.
C. PREPARE THE ALUMINUM STRAP FOR BONDING AS FOLLOWS:
1. ABRADE THE SURFACE USING SCOTCHBRITE OR 180
GRIT SANDPAPER.
2. SOLVENT WIPE THE SURFACE USING ACETONE.
3. PRIME THE SURFACE BY BRUSHING OR SPRAYING WITH
A THIN COAT OF SS4004 OR RTV 1200 PRIMER. NOTE: IF THE
PRIMER TURNS CLOUDY OR MILKY IT SHOULD NOT BE USED.
4. ALLOW THE PRIMER TO AIR DRY FOR 30 MINUTES
MINIMUM AND 4 HOURS MAXIMUM.
D. PREPARE THE SILICONE RUBBER PAD FOR BONDING AS
FOLLOWS:
1. A PARTING AGENT ON MOLDED PARTS IS USUALLY
EMBEDDED IN THE RUBBER. WIPE THE BOND SURFACE WITH ACETONE,
METHYL-ETHYL-KETONE, OR ALIPHATIC NAPTHA THEN SAND THE PART
TO REMOVE THE PARTING AGENT USING 180 GRIT SANDPAPER.
2. REMOVE THE SANDING DEBRIS BY WIPING WITH
ACETONE, METHYL-ETHYL-KETONE, OR ALIPHATIC NAPHTHA.
E. BOND THE NEW PAD TO THE STRAP AS FOLLOWS:
1. APPLY A UNIFORM LAYER OF RTV 102 ADHESIVE OVER
BOTH MATING SURFACES.
2. JOIN THE MATING SURFACES AS SOON AS POSSIBLE
AFTER ADHESIVE APPLICATION. EXPOSURE TO THE AIR FOR MORE
THAN A FEW MINUTES WILL CAUSE THE ADHESIVE TO FORM A SKIN
WHICH INTERFERES WITH ADHESION.
3. APPLY SUFFICIENT PRESSURE TO ENSURE COMPLETE
CONTACT BUT NOT SO MUCH AS TO SQUEEZE OUT AN EXCESSIVE
AMOUNT OF ADHESIVE. A BOND LINE THICKNESS OF 15 MILS GIVES
THE BEST RESULTS.
4. ALLOW THE ADHESIVE TO CURE FOR A MINIMUM OF 24
HOURS AT 75 + 5 F. A MINIMUM OF 20% RELATIVE HUMIDITY IS
REQUIRED.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - ITEMS CITED IN PARAGRAPHS 6 AND 7
MAY BE REQUIRED TO REPLACE DEFECTIVE ITEMS.
B. REQUISITIONING INSTRUCTIONS -
REQUISITION REPLACEMENT PARTS THROUGH NORMAL SUPPLY CHANNELS
USING NORMAL SUPPLY PROCEDURES. ALL REQUISITIONS SHALL USE
PROJECT CODE "XCB" PER THIS MESSAGE.
NOTE
PROJECT CODE "XCB" IS REQUIRED TO TRACK AND ESTABLISH A DATA
BASE OF STOCK FUND EXPENDITURES INCURRED BY THE FIELD AS A
RESULT OF ASAM/SOF ACTIONS.
C. BULK AND CONSUMABLE MATERIALS-
NOMENCLATURE PART NUMBER NSN.
SILICONE RUBBER BMS1-23 9320-00-505-0298
SILICONE ADHESIVE RTV 102 9320-01-075-4814
ADHESIVE PRIMER RTV 1200 8040-01-356-9085
ADHESIVE PRIMER SS4004 8040-00-870-0877
SCOTCHBRITE
SANDPAPER (180 GRIT)
SOLVENT P-D-680, TYPE II 6850-00-285-8011
CLOTH, CLEANING CCC-C-46A 8305-00-753-2967
ACETONE O-A-51 6810-00-184-4796
METHYL-ETHYL-KETONE TT-M-261 6810-00-281-2785
NAPHTHA, ALIPHATIC, TYPE II TT-N-95 6810-00-238-8117
D. DISPOSITION - DISPOSE OF REMOVED PARTS/COMPONENTS
IN ACCORDANCE WITH NORMAL SUPPLY PROCEDURES.
E. DISPOSITION OF HAZARDOUS MATERIAL - N/A.
11. SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED - N/A.
12. APPLICATION -
A. CATEGORY OF MAINTENANCE - AVUM. AIRCRAFT DOWNTIME
WILL BE CHARGED TO AVUM.
B. ESTIMATED TIME REQUIRED -
(1) TOTAL OF 0.5 MAN-HOURS USING 1 PERSON FOR THE
INSPECTION .
(2) TOTAL OF 0.5 HOURS DOWNTIME FOR ONE END ITEM.
(3) TOTAL OF 6 MAN-HOURS USING 1 PERSON TO
PERFORM THE SPECIFIED STRAP ASSEMBLY REPAIR.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE
FIELD -$600.00
D. TB/MWOS TO BE APPLIED PRIOR TO OR CONCURRENTLY WITH
THIS INSPECTION - N/A.
E. PUBLICATIONS WHICH REQUIRE CHANGE AS A RESULT OF
THIS INSPECTION - N/A.
13. REFERENCES -
A. TM 55-1520-240-23.
B. TM 1-1520-252-23.
14. RECORDING AND REPORTING REQUIREMENTS -
A. REPORTING COMPLIANCE SUSPENSE DATE (AIRCRAFT) -
UPON ENTERING REQUIREMENTS OF THIS MESSAGE ON DA FORM 2408-
13-1 ON ALL SUBJECT MDS AIRCRAFT, FORWARD A PRIORITY
MESSAGE, DATAFAX OR E-MAIL TO COMMANDER, ATCOM, ATTN: AMSAT-
R-X (SOF COMPLIANCE OFFICER), PER AR 95-3. DATAFAX NUMBER
IS DSN 693-2064 OR COMMERCIAL 314/263-2064. E-MAIL ADDRESS
IS "AMSATRX (AT SIGN) EMH4.STL.ARMY.MIL". THE REPORT WILL
CITE THIS MESSAGE NUMBER, DATE OF ENTRY IN DA FORM 2408-13-
1, THE AIRCRAFT MISSION DESIGN SERIES AND SERIAL NUMBERS OF
AIRCRAFT IN NUMERICAL ORDER.
B. TASK/INSPECTION REPORTING SUSPENSE DATE (AIRCRAFT)
-FOR AIRCRAFT WHICH FAILED THE STRAP BONDLINE INSPECTION,
UNITS WILL FORWARD A PRIORITY MESSAGE TO: COMMANDER, ATCOM,
ATTN: AMSAT-R-ECC. THE REPORT WILL CITE THIS MESSAGE
NUMBER, DATE OF INSPECTION, AIRCRAFT SERIAL NUMBER, AND
DESCRIPTION OF RESULTS OF THE INSPECTION. INSPECTION AND
REPORTS WILL BE COMPLETED NO LATER THAN 10 DAYS AFTER
TASK/INSPECTION SUSPENSE DATE.
C. REPORTING MESSAGE RECEIPT (SPARES) (SPARES) -
(1) MATERIEL IN WHOLESALE DEPOT STORAGE - REPORT
RECEIPT OF THIS MESSAGE BY E-MAIL OR DATAFAX TO THE
WHOLESALE MATERIEL (SPARES) POINT OF CONTACT LISTED IN PARA
16C WITHIN 3 WORKING DAYS FROM THE DATE OF THIS MESSAGE.
PROVIDE LOCAL POINT OF CONTACT.
(2) MATERIEL IN RETAIL STORAGE - REPORT RECEIPT
OF THIS MESSAGE BY E-MAIL OR DATAFAX TO THE LOGISTICAL POINT
OF CONTACT LISTED IN PARA 16B WITHIN 7 DAYS FROM THE DATE OF
THIS MESSAGE. PROVIDE LOCAL POINT OF CONTACT.
D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) -
(1) MATERIEL IN WHOLESALE DEPOT STORAGE - REPORT
COMPLIANCE WITH THIS MESSAGE TO THE WHOLESALE MATERIEL POINT
OF CONTACT (SPARES) LISTED IN PARA 16C WITHIN 7 DAYS OF THE
DATE OF THIS MESSAGE. INCLUDE AN ESTIMATE OF THE COST
REIMBURSABLE FUNDING REQUIRED TO MOVE SERVICEABLE ITEMS ON
HAND LISTED IN PARA 6 AND 7 TO A WORK AREA, UNPACK THE
MATERIEL, REPACK THE MATERIEL AFTER INSPECTION BY ATCOM
INSPECTORS, AND TO RETURN THE MATERIEL TO STORAGE. REPORT,
BY ORIGINAL SERVICEABLE CONDITION CODE, QUANTITY OF MATERIEL
PLACED IN CONDITION CODE J. REPORT BY E-MAIL OR DATAFAX ON
AND PROVIDE LOCAL POINT OF CONTACT.
(2) MATERIEL IN RETAIL STORAGE - REPORT
COMPLIANCE WITH THIS MESSAGE TO THE LOGISTICAL POINT OF
CONTACT IN PARA 16B WITHIN 14 DAYS OF THE DATE OF THIS
MESSAGE. REPORT THE QUANTITY INSPECTED BY CONDITION CODE
AND THE RESULTING CONDITION CODE. REPORT BY E-MAIL OR
DATAFAX AND PROVIDE LOCAL POINT OF CONTACT.
E. THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE
COMPLETED IN ACCORDANCE WITH DA PAM 738-751, 15 JUN 92 -
(1) DA FORM 2408-13, AIRCRAFT STATUS INFORMATION
RECORD.
(2) DA FORM 2408-13-1, AIRCRAFT INSPECTION AND
MAINTENANCE RECORD.
(3) DA FORM 2408-15, HISTORICAL RECORD FOR
AIRCRAFT.
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
A. TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR.
LARRY T. WIESCHHAUS, AMSAT-R-ECC, DSN 693-6678 OR COMMERCIAL
314/263-6678.
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR.
NORM HUSTON, AMCPM-CH-L, DSN 693-1415 OR COMMERCIAL 314/263-
1415.
C. WHOLESALE MATERIAL POINT OF CONTACT (SPARES) FOR
THIS MESSAGE IS MR. HAL BARNES, AMSAT-I-SACA, DSN 693-6031
OR COMMERCIAL 314/263-6031 AND FAX 314/263-6022.
D. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE
IS MS. ANN WALDECK, AMSAT-I-MDM, DSN 490-2318 OR COMMERCIAL
314/260-2318.
E. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. JIM
WILKINS, AMSAT-R-X, DSN 693-2258 OR COMMERCIAL 314/263-2258.
F. FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD
CONTACT CW5 JAY NANCE/MR. RON VAN REES, AMSAT-I-IAF, DSN 693-
3826/3659 OR COMMERCIAL 314/263-3826/3659.
F. AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER
(AOC) DSN 693-2066/7 OR COMMERCIAL 314./263-2066/7.