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:CDRATCOM ST LOUIS MO//AMSAT-R-X//
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:AIG 8881
:AIG 9004
:AIG 8708
:AIG 9042
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: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-AV//
:ROK ARMY FMS PUSAN KOR//ALC-LSD-L//
:CDR160TH SOAR FT CAMPBELL KY//AOAV-SI//
:CDRBGAD RICHMOND KY//SIOBG-GC//
:USDAO RABAT MO//AF//
:ODC THE HAGUE NL//AVIATION SAFETY//
:RNLAF MATERIAL
:RNLAF OPERATIONS
: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 ARMY FMS DUSIT ORDNANCE DEP BANGKOK TH
:CDRUSARDSG LONDON UK//AMXSN-UK-SE//
:ODC LONDON UK
:DHSA YEOVILTON UK//HS-31//
INFO
:FAA SOUTHWEST RGN HQ FORT WORTH TX//ASW-100//
: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: SAFETY-OF-FLIGHT (SOF) MESSAGE, TECHNICAL, RCS
CSGLD-1860(R1), ALL CH-47D, MH-47D AND MH-47E AIRCRAFT, ONE TIME
VISUAL INSPECTION OF FORWARD TRANSMISSION MOUNTING (BARREL)
NUTS,P/N NAS 577B20A (CH-47-97-01) (TB 1-1520-240-20-91).
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 THIS MESSAGE. ACTION ADDRESSES
WILL IMMEDIATELY VERIFY THIS TRANSMISSION 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 SHALL BE
IMMEDIATELY CHANGED TO A CIRCLED RED //X//. THE CIRCLED RED
//X// MAY BE CLEARED WHEN THE INSPECTION AND CORRECTION
PROCEDURES OF PARA 8 AND 9 BELOW ARE COMPLETED. AIRCRAFT ON A
CIRCLED RED //X// STATUS SYMBOL SHALL BE MAINTAINED IN FLYABLE
STORAGE CONDITION.
B. AIRCRAFT IN DEPOT MAINTENANCE - INSPECT AND CORRECT
PRIOR TO ISSUE. AIRCRAFT SHALL NOT BE ISSUED UNTIL COMPLIANCE
WITH THIS SOF MESSAGE HAS BEEN COMPLETED.
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) - SAME AS PARA 1A.
F. COMPONENT/PARTS IN STOCK AT ALL LEVELS (DEPOT AND OTHERS)
INCLUDING WAR RESERVES - UPON RECEIPT OF THIS SOF MESSAGE THE
MATERIEL CONDITION TAGS OF ALL ITEMS LISTED IN PARA 7 BELOW IN
ALL CONDITION CODES SHALL BE ANNOTATED TO READ SOF MESSAGE CH-47-
97-01, ONE TIME VISUAL INSPECTION OF FORWARD TRANSMISSION
MOUNTING (BARREL) NUTS, P/N NAS 577B20A, MUST BE COMPLIED WITH
PRIOR TO ISSUE..
(1) WHOLESALE STOCK - UPON RECEIPT OF THIS SOF
MESSAGE, DEPOT COMMANDERS SHALL ENSURE INSPECTION OF ALL ITEMS
LISTED IN PARA 7 BELOW LOCATED IN ALL WHOLESALE DEPOTS INCLUDING
ALL SATELLITE WHOLESALE DEPOTS AND WAR RESERVE DEPOTS. UPON
RECEIPT OF THIS MESSAGE DEPOT COMMANDERS AND OTHERS MAINTAINING
WHOLESALE STOCK SHALL ENSURE THAT SERVICEABLE MATERIEL (CONDITION
CODES //A//, //B//, AND //C//) IS PLACED IN CONDITION CODE //J//
AND TAGGED WITH A SUSPENDED TAG/LABEL - DD FORM 1576/1576-1. THE
AUTHORITY BLOCK MUST REFERENCE INSPECTION REQUIRED PER THIS SOF
MESSAGE (CH-47-97-01) (TB 1-1520-240-20-91). REPORT COMPLIANCE
WITH THIS SOF MESSAGE IN ACCORDANCE WITH PARA 14D(1) BELOW.
(2) RETAIL STOCK - UPON RECEIPT OF THIS SOF MESSAGE
COMMANDERS AND OTHERS MAINTAINING RETAIL STOCK OF ITEMS LISTED IN
PARA 7 BELOW SHALL CONTACT THEIR SUPPORT AVIATION ORGANIZATION TO
PERFORM THE INSPECTION REQUIRED BY PARA 8 BELOW AND TO PERFORM
THE CORRECTION PROCEDURES OF PARA 9 BELOW ON DISCREPANT MATERIEL.
ALL ITEMS LISTED IN PARA 7 BELOW SHALL BE IMMEDIATELY PLACED IN
CONDITION CODE //D// AND RETAGGED WITH A TEST/MODIFICATION
TAG/LABEL - DD FORM 1576/1576-1 (BLUE COLOR). THE AUTHORITY
BLOCK MUST REFERENCE INSPECTION REQUIRED PER THIS SOF MESSAGE (CH-
47-97-01) (TB 1-1520-240-20-91). ITEMS IDENTIFIED AS SERVICEABLE
IAW PARA 8 BELOW SHALL BE RETAGGED WITH A SERVICEABLE TAG/LABEL -
DD FORM 1574/1574-1 (YELLOW COLOR). INDICATE COMPLIANCE WITH
THIS SOF MESSAGE (CH-47-97-01) (TB 1-1520-240-
20-91) IN THE REMARKS BLOCK. ITEMS IDENTIFIED AS DISCREPANT IAW
PARA 8 BELOW SHALL BE RETAGGED WITH UNSERVICEABLE (REPARABLE)
TAG/LABEL - 1577-2/1577-3 (GREEN COLOR). ANNOTATE REMARKS BLOCK
TO INDICATE THAT THE ITEM IS UNSERVICEABLE IAW THIS SOF MESSAGE
(CH-47-97-01) (TB 1-1520-240-20-91). ANY ITEMS FOUND DISCREPANT
PER THE INSPECTION PROCEDURES CITED IN PARA 8 BELOW SHALL BE
DISPOSED OF BY MUTILATION/DEMILITARIZED TO PREVENT RESALE.
REPORT COMPLIANCE WITH THIS SOF MESSAGE IN ACCORDANCE WITH PARA
14D(2) BELOW.
G. COMPONENTS/PARTS IN WORK - ALL ITEMS LISTED IN PARA 6
BELOW SHALL NOT BE ISSUED UNTIL COMPLIANCE WITH THIS SOF MESSAGE
HAS BEEN COMPLETED.
2. TASK/INSPECTION SUSPENSE DATE - WITHIN 10 HOURS/14 DAYS.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 6 DEC 1996
PER PARA 14.A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. SAFETY-OF-FLIGHT MESSAGES (SEE PARA 13A AND 13B BELOW)
ISSUED IN APRIL 1990 REQUIRED THE INSPECTION/REPLACEMENT OF
NAS577B20A BARREL NUTS TO PURGE THE SUPPLY SYSTEM OF NUTS
MANUFACTURED BY HARTFORD AIRCRAFT PRODUCTS (HAP) INC., CAGE
66861. THESE NUTS MOUNT THE FORWARD TRANSMISSION TO THE
AIRFRAME, AND FOUR(4) NUTS ARE REQUIRED PER AIRCRAFT. ANALYSIS
OF SEVERAL FAILED BARREL NUTS MANUFACTURED BY THIS VENDOR
INDICATED IMPURITIES IN STEEL AND ALLOY SEGREGATION. ALL OTHER
MANUFACTURERS NAS577B20A BARREL NUTS ARE ACCEPTABLE.
B. A REPORT WAS JUST RECEIVED THAT ANOTHER SUBJECT BARREL
NUT MANUFACTURED BY THIS VENDOR WAS FOUND IN THE FIELD ASSETS.
IT IS LOGICAL TO ASSUME THAT ADDITIONAL DISCREPANT NUTS
MANUFACTURED BY HARTFORD AIRCRAFT PRODUCTS, INC. MAYBE INSTALLED
ON H-47 CHINOOK AIRCRAFT.
C. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS, SEE PARA 12
BELOW
D. THE PURPOSE OF THIS SOF MESSAGE IS TO REQUIRE ANOTHER
ONE TIME VISUAL INSPECTION OF FORWARD TRANSMISSION NAS577B20A
MOUNTING (BARREL) NUTS PRIOR TO NEXT FLIGHT AND REMOVAL OF NUTS
MANUFACTURED BY HARTFORD AIRCRAFT PRODUCTS INC. WHICH CAN BE
IDENTIFIED BY AN IMPRESSION STAMP MARKING OF HAP, OR CAGE CODE
66861, ON THE EXPOSED BARREL NUT CARRIER.
5. END ITEMS TO BE INSPECTED - ALL CH-47D, MH-47D, AND MH-47E
AIRCRAFT.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NUMBER NSN
FORWARD TRANSMISSION 145D1300-9 1615-01-317-6446
ASSEMBLY
7. PARTS TO BE INSPECTED -
NOMENCLATURE PART NUMBER NSN
NUT, SELF-LOCKING, NAS577B20A 5310-01-210-3874
BARREL
8. INSPECTION PROCEDURES -
A. PREPARE AIRCRAFT FOR SAFE GROUND MAINTENANCE.
B. VISUALLY INSPECT THE FOUR(4) NAS577B20A BARREL NUTS (SEE
PARA 13 BELOW, REFERENCE C., TASK 6-51, ITEM 13.1, OR REFERENCE
D., TASK 6-60, ITEM 15) THAT ATTACH THE FORWARD TRANSMISSION TO
THE AIRFRAME. THE NUTS FASTEN TO THE BOTTOM OF THE MOUNTING
BOLTS (ITEM 14 OR ITEM 17).
C. INSPECT EACH BARREL NUT TO DETERMINE THE MANUFACTURER.
USE A FLASHLIGHT AND MIRROR TO IMPROVE READABILITY.
D. IF THE EXPOSED BARREL NUT CARRIER IS IMPRESSION STAMPED
WITH HAP OR THE CAGE CODE 66861, THE NUT WAS MANUFACTURED BY
HARTFORD AIRCRAFT PRODUCTS, INC., IS SUSPECT, AND MUST BE REMOVE
FROM SERVICE. PROCEED TO PARA 9 BELOW FOR CORRECTIVE ACTION.
E. IF THE EXPOSED BARREL NUT CARRIER IS MARKED IN ANY OTHER
WAY ,OR HAS NO MARKINGS, THE NUT IS ACCEPTABLE AND NO FURTHER
ACTION IS REQUIRED. RECORD AND REPORT COMPLIANCE WITH THIS SOF
MESSAGE IN ACCORDANCE WITH PARA 14 BELOW.
9. CORRECTION PROCEDURES -
A. REPLACE NAS577B20A BARREL NUTS EXHIBITING AN IMPRESSION
STAMP OF HAP OR CAGE CODE 66861 WITH ANY OTHER MANUFACTURERS
NUT PRIOR TO FURTHER FLIGHT.
B. WHENEVER A BARREL NUT IS INSTALLED, THE BOLT MUST BE
TORQUED IN ACCORDANCE WITH PARA 13 BELOW, REFERENCE C., TASK
6-51, PARA 9, OR REFERENCE D., TASK 6-60, PARA 12. ALSO, A ONE
TIME RETORQUE AFTER 25 FLIGHT HOURS IS REQUIRED.
C. ANY SUSPECT BARREL NUT REMOVED FROM AN AIRCRAFT OR FOUND
IN SUPPLY SHALL BE DISPOSED OF BY MUTILATION/DEMILITARIZED TO
PREVENT RESALE, REISSUE, OR USE BY ANY OTHER MDS AIRCRAFT SYSTEMS
(I.E., UH-60, AH-64, ETC.).
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - ITEMS CITED IN PARA 7 ABOVE MAY BE
REQUIRED TO REPLACE DEFECTIVE ITEMS..
B. REQUISITIONING INSTRUCTIONS - REQUISITION REPLACEMENT
PARTS THROUGH NORMAL SUPPLY CHANNELS USING NORMAL SUPPLY
PROCEDURES. ALL REQUSITIONS SHALL USE PROJECT CODE XCS PER THIS
MESSAGE.
NOTE
PROJECT CODE XCS IS REQUIRED TO TRACK AND ESTABLISH A DATA BASE
OF STOCK FUND EXPENDITURES INCURRED BY THE FIELD AS A RESULT OF
SOF/ASAM ACTIONS.
C. BULK AND CONSUMABLE MATERIALS - N/A.
D. DISPOSITION - AFTER MUTILATION OR DEMILITARIZATION IAW
PUBLISHED PROCEDURES, DISPOSE OF REMOVED COMPONENTS/PARTS IAW
NORMAL SUPPLY PROCEDURES. A QDR IS NOT REQUIRED.
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 ONE(1) MAN-HOUR USING ONE(1) PERSON.
(2) TOTAL OF ONE(1) HOUR DOWNTIME FOR ONE(1) END ITEM.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE FIELD -
NOUN PART NO./ QUANTITY UNIT COST TOTAL COST
NSN PER ACFT
NUT, SELF 145SS131-20/ 4 $123.00 $492.00
LOCKING, 5310-01-334-1248
BARREL
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. MESSAGE, AVSCOM, AMSAV-XSOF, 192100Z APR 90, SUBJECT:
SAFETY-OF-FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-1860(R1), ALL
CH-47D AIRCRAFT, ONE TIME INSPECTION OF CH-47D FORWARD
TRANSMISSION BARREL NUTS, P/N NAS 577B20A, (CH-47-90-07) (TB 55-
1520-240-20-48).
B. MESSAGE, AVSCOM, AMSAV-XSOF, 201700Z APR 90, SUBJECT:
SAFETY-OF-FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-1860(R1), ALL
CH-47D AIRCRAFT, CLARIFICATION TO ONE-TIME INSPECTION OF CH-47D
FORWARD TRANSMISSION MOUNTING NUTS, P/N NAS 577B20A, (CH-47-
90-08) (TB 55-1520-240-20-48).
C. TM 55-1520-240-23-5.
D. TM 1-1520-252-23-6.
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)
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) -
WITHIN TWO(2) WORKING DAYS OF RECEIPT OF THIS SOF MESSAGE, UNITS
WILL FORWARD A PRIORITY MESSAGE TO: COMMANDER, ATCOM, ATTN:
AMCPM-CH-L. THE REPORT WILL CITE THIS SOF MESSAGE NUMBER, DATE
OF INSPECTION, AIRCRAFT SERIAL NUMBER, AIRCRAFT AND COMPONENT
HOURS, AND RESULTS OF THE INSPECTION. INSPECTION AND REPORTS
WILL BE COMPLETED NO LATER THAN 7 DAYS AFTER TASK/INSPECTION
SUSPENSE DATE.
C. REPORTING COMPLIANCE SUSPENSE DATE (SPARES) -
(1) MATERIEL IN RETAIL STORAGE - REPORT RECEIPT OF
THIS MESSAGE TO THE LOGISTICAL POINT OF CONTACT LISTED IN
PARAGRAPH 16B WITHIN TWO(2) WORKING DAYS FROM THE DATE OF THIS
MESSAGE.
(2) MATERIEL IN WHOLESALE DEPOT STORAGE - REPORT
RECEIPT OF THIS MESSAGE TO THE WHOLESALE MATERIEL (SPARES) POINT
OF CONTACT LISTED IN PARAGRAPH 16C WITHIN TWO(2) DAYS FROM THE
DATE OF THIS MESSAGE.
D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) -
(1). MATERIAL IN WHOLESALE DEPOT STORAGE- REPORT
COMPLIANCE WITH THIS SOF MESSAGE TO THE WHOLESALE MATERIEL POINT
OF CONTACT (SPARES) LISTED IN PARAGRAPH 16C WITHIN TWO(2) WORKING
DAYS FROM THE DATE OF THIS MESSAGE. PROVIDE AN ESTIMATE OF THE
COST REIMBURSABLE FUNDING REQUIRED TO MOVE THE ITEMS LISTED IN
PARA 7 ABOVE TO A WORK AREA, UNPACK THE MATERIEL, REPACK THE
MATERIEL AFTER INSPECTION BY ATCOM INSPECTORS, AND TO RETURN THE
MATERIEL TO STORAGE. REPORT THE SERIAL NUMBERS, BY ORIGINAL
SERVICEABLE CONDITION CODE, OF ALL MATERIAL PLACED IN CONDITION
CODE //J//.
(2) MATERIAL IN RETAIL STORAGE- REPORT COMPLIANCE WITH
THIS MESSAGE TO THE LOGISTICAL POINT OF CONTACT IN PARAGRAPH 16B
WITHIN TWO(2) WORKING DAYS FROM THE DATE OF THIS MESSAGE. REPORT
THE QUANTITY INSPECTED BY CONDITION CODE, AND THE RESULTING
CONDITION CODE. REPORT THE SERIAL NUMBERS OF ALL MATERIEL
REQUIRING CORRECTION. PLACE THESE ITEMS IN CONDITION CODE //D//
AND PROVIDE COPIES OF SHIPPING DOCUMENTS TO WHOLESALE MATERIEL
POINT OF CONTACT LISTED IN PARAGRAPH 16C.
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 POINTS OF CONTACT FOR THIS MESSAGE ARE MR.
ROBERT A. LAWYER, AMSAT-R-ECC, DSN 693-3820 OR COMMERCIAL 314/263-
3820, RESPECTIVELY.
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. NORM
HUSTON, AMCPM-CH-L, DSN 693-1415 OR COMMERCIAL 314/263-1415 AND
FAX DSN 693-1485 OR COMMERCIAL 314/263-1485.
C. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS
MS. ANN WALDECK, AMSAT-I-MDM, DSN 490-2318 OR COMMERCIAL 314/260-
2318.
D. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. JIM
WILKINS, AMSAT-R-X, DSN 693-2258 OR COMMERCIAL 314/263-2258.
E. FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT
CW5 JAY NANCE OR MR. RON VAN REES, AMSAT-D-S, DSN 693-7844/3216
OR COMMERCIAL 314/263-7844/3216.
G. AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER
(COC), DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.
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