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01 15 241820Z FEB 99 PP PP UUUU AA ZYUW
FROM
:CDRAMCOM REDSTONE ARSENAL AL//AMSAM-SF-A//
TO
:AIG 8881
:AIG 9004
:AIG 9042
:AIG 7471
:AIG 12124
:USMILGP BUENOS AIRES AR//ARMY AND AF SEC//
:DEFAIR MATERIAL CANBERRA ACT AS//DAAP-AF//
:CDRUSARDSG CANBERRA ACT AS//AMXIP-AS//
: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-AV//
:ROK ARMY FMS PUSAN KOR//ALC-LSD-L//
:CDR160THSOAR FT CAMPBELL KY//AOAV-SI//
:CDRBGAD RICHMOND KY//SIOBG-GC//
:USDAO RABAT MO//AF//
:ODC THE HAGUE NL//AVIATION SAFETY//
:RNLAF MATERIAL THE HAGUE NL
:RNLAF OPERATIONS THE HAGUE NL
:CDRUSASAC NEW CUMBERLAND PA//AMSAC-SALO-UK//
: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 AF FMS BANGKOK TH//BANGSUE DEPOT//
:ROYAL THAI ARMY FMS BANGKOK TH//DUSIT ORDANCE DEPOT//
:CDRUSARDSG LONDON UK//AMXSN-UK-SE//
:ODC LONDON UK
INFO
:FAA SOUTHWEST RGN HQ FORT WORTH TX//ASW-100//
:CDRAMC ALEXANDRIA VA//AMCMR/AMCCS/AMCSM-WAA//
:UNCLAS
SUBJECT - AVIATION SAFETY ACTION MESSAGE, MAINTENANCE MANDATORY,
RCS CSGLD-1860(R1), ALL H-47, ONE TIME AND RECURRING INSPECTION
OF HOIST/CARGO HOOK CONTROL PANEL AND WATER INTRUSION IN THE
COCKPIT, (CH-47-99-ASAM-03), (TB 55-1520-240-20-108).
NOTE
THIS IS AN AVIATION SAFETY ACTION MESSAGE ISSUED IAW AR 95-1,
CHAPTER 6, 1 SEP 97. 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 TRANSMISSION TO CDR, AMCOM, ATTN: AMSAM-SF-A (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 //-//. THE RED HORIZONTAL //-// MAY BE CLEARED
WHEN THE INSPECTION OF PARA 8 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 AIRCRAFT WILL NOT BE
ISSUED UNTIL COMPLIANCE WITH THIS ASAM HAS BEEN COMPLETED.
C. AIRCRAFT UNDERGOING MAINTENANCE - SAME AS PARA 1A.
D. AIRCRAFT IN TRANSIT -
(1) SURFACE/AIR SHIPMENT PRIOR TO FIRST FLIGHT.
(2) FERRY STATUS - INSPECT AT FINAL DESTINATION.
E. MAINTENANCE TRAINERS (CATEGORY A AND B) - N/A.
F. COMPONENT/PARTS IN STOCK AT ALL LEVELS (DEPOT AND
OTHERS) INCLUDING WAR RESERVES - N/A.
G. COMPONENTS/PARTS IN WORK (DEPOT LEVEL AND OTHERS) - N/A.
2. TASK/INSPECTION SUSPENSE DATE - WITHIN NEXT 10 FLIGHT
HOURS/ 14 DAYS.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 18 MARCH
1999 IAW PARA 14A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. INVESTIGATIONS HAVE REVEALED THAT THE HOIST/CARGO
CONTROL PANEL HAS CHAFFED WIRES AND CORROSION ON THE TERMINAL
LUGS. THESE CONDITIONS COULD CAUSE ELECTRICAL SHORTING AND
INADVERTENT JETTISON OF EXTERNAL CARGO.
B. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE PARA 12.
C. THE PURPOSE OF THIS MESSAGE IS TO PERFORM A ONE TIME
INSPECTION OF THE HOIST/CARGO CONTROL PANEL FOR CORROSION, WIRE
ROUTING, AND WIRE POSITIONING ON TERMINAL LUGS. IN ADDITION, AN
INSPECTION FOR WATER INTRUSION WILL BE PERFORMED. AS A RESULT OF
THIS CONDITION, ESTABLISHMENT OF A 200/300 HOUR RECURRING
INSPECTION DURING PHASE WILL BE REQUIRED FOR CORROSION.
5. END ITEMS TO BE INSPECTED ALL CH-47D, MH-47D AND MH-47E
HELICOPTERS.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
HOIST/CARGO CONTROL PANEL 145E2334-1 1680-01-224-2884
7. PARTS TO BE INSPECTED - INTERNAL COMPONENTS OF THE
HOIST/CARGO CONTROL PANEL.
8. INSPECTION PROCEDURES
A. PREPARE THE AIRCRAFT FOR SAFE GROUND MAINTENANCE.
THIS INCLUDES DISCONNECTING THE BATTERY AND ALL ELECTRICAL POWER
TO THE AIRCRAFT.
B. REMOVE HOIST/CARGO HOOK PANEL FROM OVERHEAD CONSOLE IAW
TM 55-1520-240-23 AND TM 1-1520-252-23.
C. VISUALLY INSPECT FOR PRESENCE OF WATER/MOISTURE,
CORROSION, WIRE CHAFING, WIRE ROUTING AND WIRE POSITIONING ON
TERMINAL LUGS (I.E. ASSURE THAT NO WIRES ARE SHORTED.) CORRECT
ANY DISCREPANCIES IAW PARAGRAPH 9 BELOW.
D. ANNOTATE DA FORM 2408-18 THAT "RECURRING PHASE
INSPECTIONS ARE REQUIRED AT 200 HOURS FOR THE CH-47D AND AT 300
HOURS FOR THE MH-47D AND MH-47E AIRCRAFT IAW PARAGRAPHS 8 AND 9
OF CH-47-99-ASAM-03, TB 55-1520-240-20-108."
E. PERFORM A COCKPIT WATER INTRUSION CHECK AS FOLLOWS.
(1) USE A GARDEN HOSE TO ALLOW WATER TO FLOW OVER THE
OUTSIDE AREA ABOVE THE HOIST/CARGO HOOK PANEL. INCLUDE SHEET
METAL AND WINDSHIELDS.
(2) FROM INSIDE INSPECT FOR AND IDENTIFY ALL WATER
ENTRY POINTS. FOR CORRECTIVE PROCEDURES SEE PARAGRAPH 9 BELOW.
NOTE
THE INSPECTION FOR WATER ENTRY SHOULD BE
COMPLETED AS SOON AS PRACTICAL. LOCAL
COMMANDERS ARE AUTHORIZED TO DEFER THIS
CHECK AS WEATHER CONDITIONS DICTATE
BUT NLT 31 MAY 1999.
9. CORRECTION PROCEDURES
A. IF CORROSION OR WIRE CHAFING IS PRESENT, CLEAN CORROSION
AND REPAIR WIRES IAW TM 55-1500-323-24. FOR ALL CONTROL PANELS,
TREAT WITH CORROSION PREVENTION COMPOUND.
B. FOR WIRE ROUTING, ASSURE THAT WIRES ARE TUCKED BETWEEN
THE SUPPORT POSTS SO THAT THEY CAN NOT BE PINCHED OR CHAFED
AGAINST THE CONSOLE WHEN THE PANEL IS INSTALLED.
C. FOR WIRE CONNECTORS ON TERMINAL LUGS, BEND WIRE
CONNECTORS AWAY FROM THE OTHER LUGS. MAINTAIN AS MUCH GAP AS
POSSIBLE BETWEEN THE WIRE CONNECTOR AND THE NEAREST TERMINAL LUG.
D. FOR COCKPIT WATER/MOISTURE INTRUSION THE FOLLOWING ARE
POTENTIAL PROBLEM AREAS:
E. FOR LEAKS AROUND THE COCKPIT CROWN WINDOW AND COCKPIT
LOWER WINDOW PANEL. MOST LEAKS OCCUR FROM IMPROPER SEALING OF
THE WINDOW, OR IMPROPER INSTALLATION OF ATTACHMENT SCREWS.
(1) EXAMINE FILLET SEAL AROUND WINDOW FOR CRACKS, CUTS,
AND UNBONDING. IF ANY OF THESE CONDITIONS EXIST, RESEAL LOCALLY
WITH PROSEAL 890.
(2) IF WATER APPEARS TO ENTER AROUND RIVNUT LOCATIONS,
REMOVE ATTACHING SCREW AND WASHER. REMOVE OLD SEALANT FROM SCREW
AND WASHER. APPLY SEALANT BETWEEN EACH SCREW AND WASHER AND
BETWEEN EACH WASHER AND WINDOW. REINSTALL SCREW AND TORQUE TO 10-
14 INCH POUNDS.
(3) AFTER SEALANT HAS FULLY CURED, PERFORM A LEAK CHECK
IAW PARAGRAPH 8D ABOVE.
(4) AFTER LOCALLY TESTING FOR LEAKS, IF THERE IS STILL
WATER INTRUSION, IT MAY BE NECESSARY TO REMOVE THE WINDOW AND
REPLACE SEALANT TAPE UNDER WINDOW. REMOVE WINDOW AND INSPECT
SEALANT TAPE FOR TEARS, CRACKS AND UNBONDING FROM AIRCRAFT
STRUCTURE. IF ANY OF THESE CONDITIONS EXIST, REPLACE TAPE AND
INSTALL WINDOW IAW TM 55-1520-240-23 OR TM 1-1520-252-23. AGAIN
PERFORM LEAK CHECK IAW PARAGRAPH 8D ABOVE.
F. FOR LEAKS AROUND PILOT, COPILOT OR CENTER WINDSHIELDS.
NOTE
MOST LEAKS OCCUR FROM IMPROPER SEALING OF THE
WINDOW, OR IMPROPER INSTALLATION OF ATTACHMENT
SCREWS.
(1) EXAMINE FILLET SEAL AROUND WINDOW FOR CRACKS, CUTS,
AND UNBONDING. IF ANY OF THESE CONDITIONS EXIST, RESEAL LOCALLY
WITH PROSEAL.
(2) AFTER SEALANT HAS FULLY CURED, PERFORM A LEAK CHECK
IAW PARAGRAPH 8D ABOVE.
(3) AFTER LOCALLY TESTING FOR LEAKS, IF THERE IS STILL
WATER INTRUSION, REMOVE WINDOW AND INSPECT RUBBER STRIP FOR
TEARS, CRACKS AND UNBONDING FROM AIRCRAFT STRUCTURE IAW TM 55-
1520-240-23 OR TM 1-1520-252-23.
(4) IF ANY OF THESE CONDITIONS EXIST, REPLACE RUBBER
STRIP AND INSTALL WINDOW IAW TM55-1520-240-23 OR TM 1-1520-252-23.
PERFORM A LEAK CHECK IAW PARAGRAPH 8D ABOVE.
G. FOR LEAKS FROM THE AREA ABOVE THE OVERHEAD CONSOLE.
(1) REMOVE THE FORWARD TRANSMISSION FORWARD FAIRING IAW
TM 55-1520-240-23 OR TM 1-1520-252-23.
(2) INSPECT THE SEALANT IN THE AREA FORWARD OF THE
FORWARD TRANSMISSION TO ENSURE THAT IT HAS BEEN APPLIED
UNIFORMLY.
(3) IF THE SEALANT APPEARS TO HAVE BEEN APPLIED
IMPROPERLY OR NOT UNIFORMLY, REMOVE ALL SEALANT, CLEAN STRUCTURE
AND REAPPLY PROSEAL TO ALL SEAMS IN THE SKIN.
(4) FOR LEAKS AROUND FASTENERS (RIVETS), APPLY SEALANT
TO ALL OF THE FASTENERS IN THE AREA. AFTER SEALANT HAS FULLY
CURED, PERFORM A LEAK CHECK IAW PARAGRAPH 8D ABOVE.
H. FOR WATER/MOISTURE FROM ABOVE THE COCKPIT DOME LIGHTS.
(1) OPEN THE FORWARD TRANSMISSION WORK PLATFORMS. POUR
A SMALL AMOUNT OF WATER IN THE AREA OF THE FORWARD TRANSMISSION
MOUNTS (LEFT AND RIGHT SIDES) BETWEEN THE TRANSMISSION MOUNTS AND
THE WORK PLATFORM HINGE.
(2) CHECK THE COCKPIT FOR LEAKS. IF ANY LEAK IS
DETECTED, RESEAL WITH PROSEAL. AFTER SEALANT IS FULLY CURED,
PERFORM A LEAK CHECK.
I. FOR WATER/MOISTURE DUE TO A PLUGGED DRAIN HOLE.
(1)INSPECT DRAIN HOLE JUST ABOVE AND AFT OF THE PILOTS
AND CO-PILOTS CROWN WINDOWS AT STA 84.20, WL +55.25, BL 20.48.
IT IS LOCATED AT THE BOTTOM OF THE VERTICAL ROW OF RIVETS AT THIS
LOCATION.
(2) IF DRAIN HOLE IS FILLED WITH SEALANT, REMOVE
SEALANT.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - N/A.
B. REQUISITIONING INSTRUCTIONS - N/A
C. BULK AND CONSUMABLE MATERIALS -
NOMENCLATURE PART NO. NSN COST
PROSEAL (OR EQUIV.) MIL-S-8802 9030-00-685-0915 $14.92.
SEALANT TAPE (OR EQUIV.) 9320-00-019-0351 $45.91.
D. DISPOSITION - N/A.
E. DISPOSITION OF HAZARDOUS MATERIAL - N/A.
11. SPECIAL TOOLS AND FIXTURES REQUIRED - N/A.
12. APPLICATION -
A. CATEGORY OF MAINTENANCE AVUM. AIRCRAFT DOWNTIME WILL
BE CHARGED TO AVUM.
B. ESTIMATED TIME REQUIRED -
(1) INSPECTION OF HOIST/CARGO HOOK CONTROL PANEL.
(A) TOTAL OF 2 MAN HOURS USING 1 PERSON.
(B) TOTAL OF TWO HOURS DOWNTIME FOR ONE END ITEM.
(2) INSPECTION FOR WATER INTRUSION.
(A) TOTAL OF 22 MAN HOURS USING 2 PERSONS.
(B) TOTAL DOWNTIME WILL BE GREATER THAN 2 HOURS
BUT LESS THAN 12 HOURS PER END ITEM DEPENDENT ON RESULTS OF THE
WATER INTRUSION INSPECTION.
C. ESTIMATED COST IMPACT TO THE FIELD - N/A.
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 TM 55-1520-240-PM, PAGE 2-70, CHANGE 8, PARAGRAPH
10.39 AND TM 1-1520-252-PM, PAGE 2-55, PAGE 10.47 SHALL ADD
INSPECTION FOR CORROSION. IT SHALL READ AS FOLLOWS: "OVERHEAD
PANEL (LOWERED) FOR SECURITY OF COMPONENTS AND LOOSE OR MISSING
HARDWARE. WIRING AND CONNECTIONS FOR DAMAGE, SECURITY, CHAFING,
CORROSION, PROPER SUPPORT. WIRING INSULATION FOR CUTS, CRACKS
AND FRAYING. ADJACENT STRUCTURE FOR CRACKS, DAMAGE, CORROSION".
A COPY OF THIS MESSAGE SHALL BE INSERTED IN THE APPROPRIATE TM AS
AUTHORITY TO IMPLEMENT THE CHANGE UNTIL THE PRINTED CHANGE IS
RECEIVED.
13. REFERENCES
A. TM 55-1520-240-23
B. TM 1-1520-252-23
C. TM 55-1500-323-24
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 CDR, AMCOM, ATTN: AMSAM-SF-A (SOF COMPLIANCE OFFICER),
REDSTONE ARSENAL, AL 35898-5222, IAW AR 95-1. DATAFAX NUMBER IS
DSN 897-2111 OR (256) 313-2111. E-MAIL ADDRESS IS
"SAFEADM@REDSTONE.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) - N/A.
C. REPORTING MESSAGE RECEIPT (SPARES) - N/A.
D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES).- N/A.
E. THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE
COMPLETED IAW DA PAM 738-751, 15 JUN 92 - N/A.
NOTE
ULLS-A USERS WILL USE APPLICABLE "E" FORMS.
(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.
(4) DA FORM 2408-18, EQUIPMENT INSPECTION LIST, THE
200/300 HOUR RECURRING INSPECTION DURING PHASE WILL BE CARRIED ON
THIS FORM UNTIL IT IS INCORPORATED INTO THE PHASE MANUAL. ULLS-A
UNITS WILL USE ONE OF THEIR 800 INSPECTION NUMBERS UNTIL IT IS
INCORPORATED INTO THE PHASE MANUAL.
15. WEIGHT AND BALANCE.
16. POINTS OF CONTACT -
A. TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR.
MICHAEL J. WRIGHT, AMSAM-AR-E-I-C-H, DSN 897-3225/4284 OR (256)
313-3225/4284, DATAFAX IS DSN 897-4348 OR (256) 313-4348.
E-MAIL IS "WRIGHTM@AVRDECR.REDSTONE.ARMY.MIL".
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS BILL
OLSON, SFAE-CH-L, DSN 897-4304 OR (256) 313-4304, DATAFAX IS DSN
897-4348 OR (256) 313-4348.
E-MAIL IS "OLSONW@PEOAVN.REDSTONE.ARMY.MIL".
C. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS
MS. ANN WALDECK, AMSAM-MMC-RE-FF DSN 746-5564 OR (256) 876-5564,
DATAFAX IS DSN 746-4904 OR (256) 876-4904.
E-MAIL IS "WALDECK-AB@REDSTONE.ARMY.MIL".
D. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS ROBERT D.
BROCK, AMSAM-SF-A, DSN 788-8632 OR (256) 842-8632, DATAFAX IS DSN
897-2111 OR (256) 313-2111.
E-MAIL IS "BROCK-RD@REDSTONE.ARMY.MIL".
E. FOREIGN MILITARY SALES RECIPIENTS REQUIRING
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT:
CW5 JOSEPH L. WITTSTROM, SECURITY ASSISTANCE MANAGEMENT, AMSAM-
SA, DSN 897-0681 OR (256) 313-0681.
EMAIL IS "WITTSTROMJL@REDSTONE.ARMY.MIL" OR MR. RONNIE W.
SAMMONS, AMSAM-SA-CS-NF, DSN 897-0869 OR (256) 313-0869. DATAFAX
IS DSN 897-0411 OR (256) 313-0411.
EMAIL IS "SAMMONSRW@REDSTONE.ARMY.MIL". HUNTSVILLE, AL IS GMT
MINUS 6 HRS.
F. AFTER HOURS CONTACT THE AMCOM COMMAND OPERATIONS CENTER
(COC) DSN 897-2066/7 OR (256) 313-2066/7.
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