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01 15 062048Z DEC 94 OO PP UUUU
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FROM
:CDRATCOM ST LOUIS MO//AMSAT-R-X//
TO
:AIG 8881
:AIG 9004
:AIG 8708
:AIG 9042
:DEFARM CAMPBELL AS//DAVN-A//
:DEFARM CANBERRA AS//DOR-A//
:DEFNAV CANBERRA AS
:CDRUSARDSG CANBERRA AS
:LOGCON OTTAWA CAN//DTHEM 6-2//
:EGYPT AF FMS CAIRO EG//ED-MA//
:USOMC CAIRO EG//AV//
:ODC ATHENS GR//ODCSA//
:CDR4THBN228THAVN SOTO CANO HO//AVN-AMO//
:102DARMY SCOTT AFB IL//AFRC-AMO-ASF-IL//
:CHJUSMAG SEOUL KOR//MKAR//
:HQROKA TAEJON KOR//DCSLOG-AVIATION/ROKA-AVIATON//
:ROK ARMY FMS PUSAN KOR//ALC-LSD-L//
:CDR160TH SOAR FT CAMPBELL KY//AOAV-SI//
:CDRBGAD RICHMOND KY//SDSBG-GC//
:USDAO RABAT MO//AF//
:CHUSAS RIYADH SA//ASAV//
:ODC MADRID SP//ASM//
:AIT TAIPEI TW
:CJUSMAG THAI BANGKOK TH//MAGTAR-FS//
:CDRUSARDSG LONDON UK//AMXSN-UK-SE//
:ODC LONDON UK
INFO
:CDRAMCCOM ROCK ISLAND IL//AMSAR-QAS-P//
: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
:SAO SINGAPORE SN
ACCT
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TEXT
:UNCLAS
SUBJECT - SAFETY-OF-FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-
1860(R1), ALL U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT,
ONE TIME VISUAL INSPECTION OF UPPER BOOST ACTUATOR SERIAL
NUMBERS TO ENSURE PROPER SCREWS ARE INSTALLED (CH-47-95-01)
(TB 1-1520-243-20-2) .
NOTE - THIS IS A SAFETY-OF-FLIGHT MESSAGE AND 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 COMMANDER, ATCOM, ATTN: AMSAT-R-X (SOF COMPLIANCE
OFFICER).
1. PRIORITY CLASSIFICATION -
NOTE - SEE AR 95-3, PARA 5-6A, FOR NONCOMPLIANCE AUTHORITY
OF MAJOR COMMANDERS.
A. AIRCRAFT IN USE - UPON RECEIPT OF THIS MESSAGE THE
CONDITION STATUS SYMBOL OF THE CITED AIRCRAFT WILL BE
CHANGED TO A RED //X//. THE RED //X// MAY BE CLEARED WHEN
THE INSPECTION OF PARAGRAPH 8 AND 9 BELOW IS COMPLETED.
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 - SAME AS PARA 1A.
E. MAINTENANCE TRAINERS (CATEGORY A, B AND C) - SAME
AS PARA 1A.
F. COMPONENT/PARTS IN STOCK INCLUDING WAR RESERVES AT
ALL LEVELS (DEPOT AND OTHERS) -
NOTE
ITEMS LISTED IN PARA 6 THAT ARE IN WORK SHALL NOT BE ISSUED
UNTIL COMPLIANCE WITH THIS MESSAGE.
NOTE
ITEMS LISTED IN PARA 6 THAT ARE UNSERVICEABLE ARE NOT
AFFECTED BY THIS MESSAGE.
(1) RETAIL STOCK - UPON RECEIPT OF THIS MESSAGE
ALL ITEMS LISTED IN PARAGRAPH 6 THAT ARE IN CONDITION CODE
//A// OR //B// SHALL BE PLACED IN CONDITION CODE //J// AND
RETAGGED WITH A MATERIEL CONDITION TAG/LABEL - SUSPENDED
(BROWN TAG/LABEL) DD FORM 1575/1575-1. THE INSPECTION BLOCK
SHALL STATE: "INSPECTION DUE PER THIS MESSAGE (TB 1-1520-
243-20-2)." ITEMS IDENTIFIED AS SERVICEABLE IAW PARAGRAPH 8
AND 9 SHALL BE RETAGGED WITH A MATERIEL CONDITION TAG/LABEL
- SERVICEABLE (YELLOW TAG/LABEL) DD FORM 1574/1574-1.
INDICATE COMPLIANCE WITH THIS MESSAGE (TB 1-1520-243-20-2)
IN THE REMARKS BLOCK. ITEMS IDENTIFIED AS DISCREPANT IAW
PARAGRAPH 8 AND 9 SHALL BE PLACED IN CONDITION CODE //D//.
(2) WHOLESALE STOCK - UPON RECEIPT OF THIS
MESSAGE, DEPOT COMMANDERS SHALL ENSURE INSPECTION OF ALL
ITEMS LISTED IN PARAGRAPH 6 THAT ARE IN CONDITION CODE //A//
OR //B// . ALL ITEMS LISTED IN PARAGRAPH 6 THAT ARE IN
CONDITION CODE //A// OR //B// SHALL BE PLACED IN CONDITION
CODE //J// AND RETAGGED WITH A MATERIEL CONDITION TAG/LABEL
- SUSPENDED (BROWN TAG/LABEL) DD FORM 1575/1575-1. THE
INSPECTION BLOCK SHALL STATE: "INSPECTION DUE PER THIS
MESSAGE (TB 1-1520-243-20-2)." ITEMS IDENTIFIED AS
DISCREPANT IAW PARAGRAPH 8 AND 9 SHALL BE PLACED IN
CONDITION CODE //D//. DISTRIBUTION DEPOTS SHALL PROVIDE A
COST ESTIMATE TO PERFORM THIS INSPECTION TO CDR, ATCOM,
ATTN: AMSAT-I-SDP, AT 314/263-2372/5629 OR DSN 693-
2372/5629 AND REPORT COMPLIANCE IAW PARA 14C.
2. TASK/INSPECTION SUSPENSE DATE - PRIOR TO NEXT FLIGHT.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 27
DEC 94 PER PARA 14A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. A 1992 ACCIDENT IN ALASKA WAS CAUSED BY A SCREW IN
THE UPPER BOOST ACTUATOR CONTROL VALVE FAILING FROM HYDROGEN
EMBRITTLEMENT. THE FAILED SCREW RESTRICTED THE TRAVEL OF
THE PILOT VALVE IN THE ACTUATOR RESULTING IN REDUCED
CONTROLLABILITY OF THE AIRCRAFT. TO CORRECT THE PROBLEM,
THE MATERIAL AND PLATING OF THE SCREWS HAVE BEEN CHANGED.
ALSO, THE BONDED NYLON LOCKING FEATURE OF THE SCREWS HAS
BEEN CHANGED TO A HEXAGONAL OR ROUND CONFIGURATION FROM A
LONGITUDINAL STRIP TYPE. AFTER REPLACING THE EIGHT (8)
ACTUATOR SCREWS IAW BOEING LETTER/MESSAGE 8-1420-3-4440, THE
ACTUATORS WERE REIDENTIFIED WITH THE LETTER A (ALPHA)
BEHIND THE SERIAL NUMBER ON THE METAL DECAL AS STATED IN CH-
47-93-02 MESSAGE. HOWEVER, RECENTLY CH-47 UNITS HAVE BEEN
REPORTING THAT THEY ARE RECEIVING ACTUATORS FROM THE SUPPLY
SYSTEM WITHOUT THE LETTER A FOLLOWING THE SERIAL NUMBER.
B. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE PARA
12.
C. THE PURPOSE OF THIS MESSAGE IS TO DIRECT A ONE
TIME VISUAL INSPECTION OF SERIAL NUMBERS ON ALL UPPER BOOST
ACTUATORS. ACTUATORS WITHOUT THE LETTER A (ALPHA) BEHIND
THE SERIAL NUMBER ARE REQUIRED TO BE REPLACED PRIOR TO THE
NEXT FLIGHT.
5. END ITEMS TO BE INSPECTED - ALL U.S. ARMY CH-47D, MH-47D
AND MH-47E AIRCRAFT.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
FORWARD AND AFT PIVOTING 145H6600-19 1650-01-304-9016
AND SWIVELING UPPER BOOST 145H6600-9 1650-01-151-1713
ACTUATOR 145H6600-11 1650-01-118-5627
145H6600-20 1650-01-303-7897
145H6600-10 1650-01-151-5459
145H6600-12 1650-01-117-4131
145H6700-18 1650-01-303-7898
145H6700-10 1650-01-151-9231
145H6700-8 1650-01-118-5628
145H6700-19 1650-01-302-0076
145H6700-11 1650-01-151-9232
145H6700-9 1650-01-119-7412
7. PARTS TO BE INSPECTED - SEE PARA 6.
8. INSPECTION PROCEDURES -
A. LOCATE THE FOUR (4) UPPER BOOST ACTUATORS ON THE
AIRCRAFT.
B. VISUALLY INSPECT THE ACTUATOR FOR THE LETTER A
(ALPHA) AFTER THE SERIAL NUMBER. THE SERIAL NUMBER IS ON
THE METAL DECAL OR DATA PLATE.
C. IF THE LETTER A IS PRESENT, THE SCREWS HAVE BEEN
REPLACED. THE INSPECTION IS COMPLETE AND THE RED //X// MAY
BE CLEARED.
D. IF THE LETTER "A" IS NOT PRESENT, GO TO PARA 9 FOR
CORRECTION PROCEDURES.
9. CORRECTION PROCEDURES -
A. IF THE UPPER BOOST ACTUATOR DOES NOT, REPEAT, DOES
NOT HAVE THE LETTER A (ALPHA) AFTER THE SERIAL NUMBER ON
THE METAL DECAL OR DATA PLATE, THE AIRCRAFT WILL REMAIN ON A
RED X STATUS UNTIL THE ACTUATOR IS REPLACED. REPLACE THE
ACTUATOR PRIOR TO NEXT FLIGHT.
B. NOTIFY THE LOGISTICAL POC.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - ITEMS CITED IN PARAGRAPH 6 MAY BE
REQUIRED TO REPLACE DEFECTIVE ITEMS.
B. REQUISITIONING INSTRUCTIONS - REQUISITION
REPLACEMENT ACTUATORS THROUGH NORMAL SUPPLY CHANNELS USING
NORMAL SUPPLY PROCEDURES. ALL REQUISITIONS SHALL USE
PROJECT CODE "XAS" PER THIS MESSAGE.
NOTE
PROJECT CODE "XAS" 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 - N/A.
D. DISPOSITION INSTRUCTIONS - AVUM/AVIM UNITS LOCATING
SERVICEABLE ACTUATORS WHICH DO NOT, REPEAT, DO NOT HAVE THE
LETTER "A" (ALPHA) BEHIND THE SERIAL NUMBER ON THE DECAL,
SHOULD SUBMIT A REPORT OF DISCREPANCY TO OBTAIN TURN IN
CREDIT. THE ACTUATOR SHOULD BE TURNED IN AS CONDITION CODE
//D//. IN THE REMARKS BLOCK OF THE REPORT, IT SHOULD STATE
REQUIRES CH-47-93-02 SAFETY OF FLIGHT SCREW REPLACEMENT.
UNITS SHALL ORDER REPLACEMENT ACTUATORS USING NORMAL SUPPLY
PROCEDURES. REPORT ANY ACTUATORS THAT DO NOT, REPEAT, DO
NOT HAVE THE LETTER A (ALPHA) BEHIND THE SERIAL NUMBER TO
THE LOGISTICAL POC.
NOTE
DEPOTS SHALL PLACE ACTUATORS THAT DO NOT, REPEAT, DO NOT
HAVE THE LETTER "A" BEHIND THE SERIAL NUMBER IN CONDITION
CODE //D//. ALL OTHERS SHALL BE RETURNED TO APPROPRIATE
CONDITION CODE.
E. DISPOSITION OF HAZARDOUS MATERIAL - N/A.
11. SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED - N/A.
12. APPLICATION -
A. CATEGORY OF MAINTENANCE - AIRCRAFT DOWNTIME WILL BE
CHARGED TO AVUM.
B. ESTIMATED TIME REQUIRED -
(1) TOTAL OF 1 MANHOURS USING 1 PERSON.
(2) TOTAL OF 1 HOUR DOWNTIME FOR ONE END ITEM.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE
FIELD -
NOMENCLATURE PRIME NSN COST EA.
FORWARD AND AFT 1650-01-304-9016 $9103
PIVOTING AND 1650-01-303-7897 $9104
SWIVELING UPPER 1650-01-303-7898 $9172
BOOST ACTUATORS 1650-01-302-0076 $17064
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. CDRATCOM MESSAGE 232230Z OCT 92, SUBJECT - SAFETY
OF FLIGHT MESSAGE, EMERGENCY, U.S. ARMY CH-47D, MH-47D AND
MH-47E AIRCRAFT, IMMEDIATE GROUNDING OF CH-47 AND MH-47
SERIES (CH-47-93-01)
B. CDRATCOM MESSAGE 302100Z OCT 92, SUBJECT - SAFETY
OF FLIGHT MESSAGE, TECHNICAL, U.S. ARMY CH-47D, MH-47D AND
MH-47E AIRCRAFT, UNGROUNDING OF U.S. ARMY CH-47D, MH-47D AND
MH-47E AIRCRAFT (CH-47-93-02) (TB 1-1520-240-20-63)
C. TM 55-1520-240-23, AVIATION UNIT AND INTERMEDIATE
MAINTENANCE MANUAL, CH-47D HELICOPTER, DTD 10 MAY 83,
INCLUDING ALL CHANGES.
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 "AMSATRXS (AT SIGN) ST-LOUIS-EMH4.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)
- UNITS THAT FIND ACTUATORS THAT DO NOT, REPEAT, DO NOT
HAVE THE LETTER A (ALPHA) BEHIND THE SERIAL NUMBER SHALL
IMMEDIATELY FORWARD A PRIORITY MESSAGE TO: COMMANDER,
ATCOM, ATTN: AMCPM-CH-L (MR. NORM HUSTON) OR DATAFAX DSN 693-
1485 OR COMMERCIAL 314/263-1485. THE REPORT WILL CITE THIS
MESSAGE NUMBER, DATE OF INSPECTION, ACTUATOR PART NUMBER AND
ACTUATOR SERIAL NUMBER FOR ACTUATORS THAT DO NOT, REPEAT, DO
NOT HAVE THE LETTER "A" (ALPHA) BEHIND THE SERIAL NUMBER.
REPORTS WILL BE COMPLETED NO LATER THAN 14 DAYS AFTER
RECEIPT OF THIS MESSAGE.
C. REPORTING COMPLIANCE SUSPENSE DATE (SPARES) -
DEPOT/AVIM/AVUM WITH ANY OF THE ACTUATORS IN STOCK SHALL
IMMEDIATELY FORWARD A PRIORITY MESSAGE TO: COMMANDER,
ATCOM, ATTN: AMCPM-CH-L (MR. NORM HUSTON) OR DATAFAX DSN 693-
1485 OR COMMERCIAL 314/263-1485. THE REPORT WILL CITE THIS
MESSAGE NUMBER, DATE OF INSPECTION, AIRCRAFT SERIAL NUMBER,
ACTUATOR PART NUMBER AND ACTUATOR SERIAL NUMBER. FOR EACH
ACTUATOR, STATE WHETHER IT PASSED OR FAILED INSPECTION.
REPORTS WILL BE COMPLETED NO LATER THAN 14 DAYS AFTER
RECEIPT OF THIS MESSAGE.
D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) -
N/A.
E. THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE
COMPLETED IN ACCORDANCE WITH DA PAM 738-751, 15 JUN 92 -
(1) DA FORM 2408-5-1, EQUIPMENT MODIFICATION
RECORD (ACTUATOR)
(2) DA FORM 2408-13, AIRCRAFT STATUS INFORMATION
RECORD.
(3) DA FORM 2408-13-1, AIRCRAFT INSPECTION AND
MAINTENANCE RECORD.
(4) DA FORM 2408-13-2, RELATED MAINTENANCE
ACTION.
(5) DA FORM 2408-15, HISTORICAL RECORD FOR
AIRCRAFT.
(6) DA FORM 2408-16, AIRCRAFT COMPONENT
HISTORICAL RECORD.
(7) DA FORM 2410, COMPONENT REMOVAL AND
REPAIR/OVERHAUL RECORD.
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
A. TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR.
DAVE BRAUN, SAIC CONTRACTOR, OR MR. MIKE WRIGHT, AMSAT-R-
ECC, DSN 693-3550 OR COMMERCIAL 314/263-3550.
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR.
NORM HUSTON, AMCPM-CH-L, DSN 693-1415 OR COMMERCIAL 314/263-
1415.
C. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE
IS MS. ANN WALDECK, AMSAT-I-MDM, DSN 693-1821/1758 OR
COMMERCIAL 314/263-1821/1758.
D. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR.
BRAD MEYER, AMSAT-R-X, DSN 693-2085 OR COMMERCIAL 314/263-
2085.
E. 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
(COC) DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.
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