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SYNOPSIS
CH-47-93-02 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,
MH-47E AIRCRAFT, (TB 1-1520-240-20-63).
302100Z OCT 92, BRAD MEYER, AMSAT-C-XS, X2085.
01 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
CDRATCOM ST LOUIS MO //AMSAT-C-XS//
AIG 8881
AIG 9004
AIG 8708
AIG 9042
CDR4THBN228THAVN SOTO CANO //AVN-AMO//
CDRBGAD RICHMOND KY //SDSBG-GC//
INFO DEFARM CANBERRA AS //DOHS-A//
DEFNAV CANBERRA AS
CDRUSARDSG CANBERRA AS
HQLCENG MELBOURNE AS //DAIRENG//
LOG CON OTTAWA ONT CAN //DTHEM 6-3//
AUSTNAV WASHINGTON DC //DEFNAV//
AUSTAIR WASHINGTON DC //SENGSO//
USOMC CAIRO EG //AV//
ODC ATHENS GR //ODCSA-A//
CDR AMCCOM ROCK ISLAND IL //AMSAR-QAS-P//
CHMUSLO RABAT MO //AF//
CHUSAS RIYADH SA //ASAV//
CF: SFAE-AV-CH, AMSAT-R-ECC, AMSAV-I-RAAF, AMSAV-MEA, AMSAV-L-AOC
BRAD MEYER
AMSAT-C-XS, X2085
EDWARD J. HOLLMAN
CHIEF, SAFETY OFFICE
.
UNCLAS
02 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
ODC MADRID SP //ARMY AND NAVY SEC//
CJUSMAG BANGKOK TH
CDRUSARDSG LONDON UK //AMXSN-UK-SE//
CDRAMC ALEXANDRIA VA //AMCMR/AMCCS/AMCSM-WAA//
XMT USDAO DHAKA BG
USDAO RANGOON BM
USDAO COLUMBO CE
USDAO SUVA FJ
OMADP JAKARTA ID
DSA NEW DELHI IN
USDAO ANTANANARIVO MA
CDRATCOM ST LOUIS MO
SAO KUALA LUMPUR MY
USDAO KATMANDU NP //SAO//
USDAO SINGAPORE SN //SAO//
UNCLAS RELEASABLE TO NATO ADDRESSEES
AIG 9004 TAKE FOR INFO ONLY
AIG 8708 TAKE FOR INFO ONLY
AIG 9042 TAKE FOR INFO ONLY
.
UNCLAS
03 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
SUBJECT - SAFETY-OF-FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-1860(R1),
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)
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-C-XS (SOF
COMPLIANCE OFFICER).
1. PRIORITY CLASSIFICATION -
NOTE - SEE AR 95-3, PARA 5-6A, FOR NONCOMPLIANCE AUTHORITY OF MAJOR
COMMANDERS.
A. AIRCRAFT IN USE - THE RED //X// MAY BE CLEARED WHEN THE
CORRECTION OF PARAGRAPH 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 -
.
UNCLAS
04 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
(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 AVUM, AVIM, AIMI, DEPOT
AND WAR RESERVES AT ALL LEVELS - PERFORM REPLACEMENT OF ACTUATOR
SCREWS IAW BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92.
DEPOT SPARES WILL BE CORRECTED BY CCAD TEAMS. NO HYDRAULIC CHECK IS
REQUIRED. HYDRAULIC CHECK WILL BE DONE DURING INSTALLATION AS
REQUIRED BY MAINTENANCE MANUAL.
NOTE
DEPOTS THAT DO NOT HAVE THE CAPABILITY TO INSPECT THE SUBJECT
ASSEMBLIES IN ACCORDANCE WITH THIS MESSAGE, CONTACT THE LOGISTICAL
POINT OF CONTACT. DO NOT ISSUE UNTIL THIS SAFETY OF FLIGHT MESSAGE
HAS BEEN COMPLIED WITH AND YOU HAVE BEEN NOTIFIED WHICH ARE
SERVICEABLE.
2. TASK/INSPECTION SUSPENSE DATE - N/A.
3. REPORTING COMPLIANCE SUSPENSE DATE - REPORT IAW PARAGRAPH 14B.
4. SUMMARY OF PROBLEM -
.
UNCLAS
05 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
A. CH-47-93-01, DTG 232230Z OCT 92 GROUNDED ALL U.S. ARMY
CH-47D, MH-47D AND MH-47E AIRCRAFT DUE TO THE MATERIAL FAILURE OF A
SCREW IN THE UPPER BOOST ACTUATOR CONTROL VALVE DUE TO HYDROGEN
EMBRITTLEMENT.
NOTE:
CH-47C AIRCRAFT WERE NOT AFFECTED BY CH-47-93-01.
B. REPLACEMENT SCREWS ARE MADE OF A DIFFERENT MATERIAL, HAVE
BEEN SILVER-PLATED AND HAVE A NYLON LOCKING FEATURE BONDED TO THEM
AND ARE IDENTIFIED BY SIX (6) DIMPLES ON THE HEAD. BOEING TEAMS
ARE BEING SENT TO CENTRALIZED LOCATIONS TO TRAIN UNIT MAINTENANCE
PERSONNEL (AVUM) AND AVAILABLE CH-47D LOGISTICS ASSISTANCE
REPRESENTATIVES (LAR) ON THE PROPER INSTALLATION AND INSPECTION OF
THE NEW SCREWS. UNITS WILL BE TELEPHONICALLY NOTIFIED OF TRAINING
SCHEDULE. ANY QUESTIONS SHOULD BE DIRECTED TO THE LOGISTICAL POC.
THE NEW SCREWS AND WRITTEN INSTRUCTIONS WILL BE PROVIDED BY BOEING
TEAMS. (ADDITIONAL COPIES OF BOEING LETTER/MESSAGE 8-1420-3-4440,
DATED 29 OCT 92 MAY BE OBTAINED FROM LOCAL LAR). UNITS ARE REQUIRED
TO PROVIDE QUALIFIED MAINTENANCE PERSONNEL TO ATTEND TRAINING WHICH
MAY BE CONDUCTED AFTER NORMAL WORKING HOURS.
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UNCLAS
06 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
C. THE PURPOSE OF THIS MESSAGE IS TO PROVIDE UNGROUNDING
INSTRUCTIONS FOR U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT.
5. END ITEMS TO BE INSPECTED - U.S. ARMY CH-47D, MH-47D AND MH-47E
AIRCRAFT. CH-47D AIRCRAFT SERIAL NUMBERS 91-00267 AND SUBSEQUENT
WILL BE CORRECTED BY CONTRACTOR PRIOR TO DELIVERY AND RECORDS WILL
NOT REQUIRE IDENTIFICATION OF THIS ACTION. MH-47E AIRCRAFT SERIAL
NUMBERS 90-00414 AND SUBSEQUENT WILL BE CORRECTED BY CONTRACTOR
PRIOR TO DELIVERY AND RECORDS WILL NOT REQUIRE IDENTIFICATION OF
THIS ACTION.
6. ASSEMBLY COMPONENTS AFFECTED -
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
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UNCLAS
07 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
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 AFFECTED -
NOMENCLATURE PART NO.
ACTUATOR SCREW (OLD) NAS1351-3LL10P
ACTUATOR SCREW (OLD) NAS1351C3LL10P
ACTUATOR SCREW (NEW) NAS1351N3LB10S
8. INSPECTION PROCEDURES - N/A.
9. CORRECTION PROCEDURES -
A. AFTER TRAINING FROM BOEING TEAMS, MAINTENANCE PERSONNEL
(AVUM) SHALL REPLACE THE EIGHT (8) ACTUATOR SCREWS PER AIRCRAFT IAW
BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92. IF BROKEN
ACTUATOR SCREW IS FOUND OR CANNOT BE REMOVED, REPLACEMENT OF THE
ACTUATOR ASSEMBLY IS REQUIRED.
WARNING
ANY SCREW DROPPED IN THE ACTUATOR MUST BE REMOVED.
NOTE
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UNCLAS
08 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
THIS MESSAGE AUTHORIZES AVUM PERSONNEL TO PERFORM THE DEPOT LEVEL
MAINTENANCE PROCEDURES PER THE BOEING INSTRUCTION ON A ONE TIME,
NONRECURRING BASIS.
B. REIDENTIFY ACTUATORS WITH SUFFIX "A" BEHIND THE SERIAL
NUMBER ON A METAL DECAL. BOEING INSTRUCTIONS ALLOW THE INSTALLATION
OF A METAL DECAL ON THE ACTUATORS.
C. FLIGHT CONTROL TRAVEL CHECK IAW BOEING INSTRUCTION IS
REQUIRED.
D. AFTER COMPLETION OF BOEING LETTER/MESSAGE 8-1420-3-4440,
DATED 29 OCT 92, THE RED //X// MAY BE CLEARED.
E. UNITS SHALL REPORT UNGROUNDED AIRCRAFT ON A DAILY BASIS IAW
PARAGRAPH 14B.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - BOEING TEAMS WILL PROVIDE REPLACEMENT
PARTS.
B. REQUISITIONING INSTRUCTIONS - IF REPLACEMENT OF THE ACTUATOR
IS REQUIRED, REQUISITION ACTUATOR USING AIRCRAFT ON GROUND (AOG)
PROCEDURES AND SOF PROJECT CODE "CSX" (CHARLIE-SIERRA-XRAY).
MANDATORY ENTRIES ON REQUISITIONS AND TURN-IN DOCUMENTS ARE:
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UNCLAS
09 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
(1) SIGNAL CODE (CC51) SHALL BE "C" (CHARLIE) OR "L"
(LIMA).
(2) FUND CODE (CC52-53) SHALL BE "H1" (HOTEL-ONE).
(3) PROJECT CODE (CC57-59) SHALL BE "CSX"
(CHARLIE-SIERRA-XRAY).
NOTE
PROJECT CODE AND FUND CODES WILL DIRECT FREE ISSUE OF DEPOT LEVEL
REPARABLES AND CONSUMABLE ITEMS ADDRESSED IN SAFETY MESSAGES. THEY
WILL ALSO PROVIDE A MEANS TO COLLECT HISTORICAL DATA TO SUPPORT
FUTURE BUDGET SUBMISSIONS. USE OF OTHER SIGNAL CODES, FUND CODES OR
PROJECT CODES WILL RESULT IN THE CUSTOMER PAYING FOR THE PART OR A
REQUISITION REJECTION. CODES LISTED IN PARA 10B(1) - (3) MUST
APPEAR ON BOTH THE REQUISITION AND TURN-IN DOCUMENTS.
C. BULK AND CONSUMABLE MATERIALS - BOEING TEAMS WILL PROVIDE
REPLACEMENT PARTS.
D. DISPOSITION -
(1) REMOVED SCREWS SHALL BE TAGGED/IDENTIFIED BY SERIAL
NUMBER OF ACTUATOR AND MAIL TO:
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UNCLAS
10 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
BOEING HELICOPTER CO.
GPU CENTER 3E, BLDG 325
RTE 291 INDUSTRIAL HWY
RIDLEY PARK, PA 19078-0361
DODAAC: CH0CJ1
ATTN: MR. OWEN KRAHAM
(2) UNSERVICEABLE ACTUATORS SHALL BE RETURNED TO DEPOT IAW
NORMAL SUPPLY PROCEDURES AFTER NOTIFYING LOGISTICAL POC.
E. DISPOSITION OF HAZARDOUS MATERIAL - N/A.
11. SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED - N/A.
12. APPLICATION -
A. CATEGORY OF MAINTENANCE - AVUM.
B. TIME REQUIRED -
(1) TOTAL OF 6 MANHOURS USING 3 PERSONS.
(2) TOTAL OF 2 HOURS DOWNTIME FOR ONE END ITEM.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS 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
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UNCLAS
11 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
INSPECTION -
(1) DMWR 55-1650-395, PIVOTING ACTUATOR, DATED 31 JAN 87,
C3 30 MAR 92.
(2) TM 55-1520-240-23, AVIATION UNIT AND INTERMEDIATE
MAINTENANCE MANUAL, CH-47D HELICOPTER, DATED 10 MAY 83.
(3) TM 55-1520-240-23P, AVIATION UNIT AND INTERMEDIATE
MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT
MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS), CH-47D HELICOPTER,
DATED 1 NOV 89.
13. REFERENCES - N/A.
14. RECORDING AND REPORTING REQUIREMENTS -
A. REPORTING COMPLIANCE SUSPENSE DATE (AIRCRAFT) - REPORT IAW
PARAGRAPH 14B ONLY.
B. TASK/INSPECTION REPORTING SUSPENSE DATE (AIRCRAFT) - REPORT
THE FOLLOWING TO MR. STEPHEN F. KOUCHNERKAVICH, DATAFAX DSN 693-1485
OR COMMERCIAL 314/263-1485 OR TELEPHONE DSN 693-1415 OR COMMERCIAL
314/263-1415. REPORT BY 0900 HOURS CST ON A DAILY BASIS UNTIL ALL
UNIT AIRCRAFT ARE UNGROUNDED:
(1) AIRCRAFT SERIAL NUMBER THAT HAVE COMPLETED SCREW
REPLACEMENT.
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UNCLAS
12 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
(2) SERIAL NUMBERS OF ACTUATOR ASSEMBLIES THAT REQUIRE
REPLACEMENT.
(3) SERIAL NUMBER OF SPARE ACTUATORS IN AVUM, AVIM, AND
AIMI THAT HAVE COMPLETED SCREW REPLACEMENT.
C. REPORTING COMPLIANCE SUSPENSE DATE (SPARES) - N/A.
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 2408-16, AIRCRAFT COMPONENT HISTORICAL RECORD
(IF ACTUATOR REPLACEMENT IS REQUIRED)
(5) DA FORM 2410, COMPONENT REMOVAL AND REPAIR/OVERHAUL
RECORD (IF ACTUATOR REPLACEMENT IS REQUIRED)
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
.
UNCLAS
13 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z
YES
A. TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. ROBERT
LAWYER, SFAE-AV-CH-T, DSN 693-1639 OR COMMERCIAL 314/263-1639.
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. STEPHEN
F. KOUCHNERKAVICH, SFAE-AV-CH-L, DSN 693-1415 OR COMMERCIAL
314/263-1415. DATAFAX NUMBER IS DSN 693-1485 OR COMMERCIAL
314/263-1485.
C. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS MR.
JOHN ZUBER, AMSAV-MPPD, DSN 693-1955 OR COMMERCIAL 314/263-1955.
D. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. BRAD MEYER,
AMSAT-C-XS, DSN 693-2085 OR COMMERCIAL 314/263-2085.
E. FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT MW4
JAY NANCE/MR. RON VAN REES, AMSAV-I, DSN 693-3826 OR COMMERCIAL
314/263-3826.
F. AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER (COC)
DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.
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