SYNOPSIS
CH-47-92-ASAM-04 AVIATION SAFETY ACTION MESSAGE, MAINTENANCE MANDATORY,
ALL CH-47D, MH-47D AND MH-47E AIRCRAFT, ONE TIME AND
RECURRING INSPECTION OF CROSS SHAFT ADAPTERS.
(TB 1-1520-240-20-62).
222222Z APR 92, BRAD MEYER, AMSAV-XSOF, X9089.
NOTE: Enter a "Q" + <CR> to exit or <SPACEBAR> to view
the entire message. (REPORTING)
.
01 14 222222Z APR 92 PP PP UUUU ZEXW 1131600Z
YES
CDRAVSCOM ST LOUIS MO //AMSAV-XSOF//
AIG 6713
AIG 9004
AIG 8708
AIG 9042
CDR4THBN228THAVN SOTO CANO //AVN-AMO//
CDRLBAD LEXINGTON KY //SDSLB-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, AMSAV-ECC, AMSAV-I-RAAF, AMSAV-MEA, AMSAV-L-AOC
BRAD MEYER
AMSAV-XSOF, X9089
EDWARD J. HOLLMAN
CHIEF, SAFETY OFFICE
.
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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 BEIJING DH
USDAO SUVA FJ
OMADP JAKARTA ID
DSA NEW DELHI IN
USDAO PORT MORESBY PAPAU NEW GUINEA
USDAO ANTANANARIVO MA
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
.
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YES
AIG 9042 TAKE FOR INFO ONLY
SUBJECT - AVIATION SAFETY ACTION MESSAGE, MAINTENANCE MANDATORY, RCS
CSGLD-1860(R1), ALL CH-47D, MH-47D AND MH-47E AIRCRAFT, ONE TIME AND
RECURRING INSPECTION OF CROSS SHAFT ADAPTERS, (CH-47-92-ASAM-04) (TB
1-1520-240-20-62).
NOTE - THIS IS AN AVIATION SAFETY ACTION 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 ADDRESSEES WILL IMMEDIATELY
VERIFY THIS RETRANSMISSION TO COMMANDER, AVSCOM, ATTN - AMSAV-XSOF
(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
HORIZONTAL DASH //-//. THE RED HORIZONTAL DASH //-// MAY BE CLEARED
WHEN THE INSPECTION OF PARA 8 BELOW IS COMPLETED. THE AFFECTED
.
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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 - AIRCRAFT WILL NOT BE
RELEASED UNTIL COMPLIANCE WITH THIS ASAM HAS BEEN COMPLETED.
D. AIRCRAFT IN TRANSIT -
(1) SURFACE/AIR SHIPMENT - WITHIN 10 FLIGHT HOURS OR 14
DAYS OF ARRIVAL.
(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 AND C) - SAME AS PARA
1A.
F. COMPONENT/PARTS IN STOCK INCLUDING WAR RESERVES AT ALL
.
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LEVELS (DEPOT AND OTHERS) - N/A.
2. TASK/INSPECTION SUSPENSE DATE - WITHIN NEXT 10 FLIGHT HOURS/14
DAYS.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 13 MAY 92 PER
PARA 14A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. DURING A DAILY INSPECTION, THE NUMBER TWO (RH) SIDE
ENGINE-COMBINER CROSS SHAFT STEEL ADAPTER LUG ON THE COMBINER END
WAS FOUND CRACKED. INVESTIGATION REVEALED THAT THE CRACK WAS
INITIATED FROM FRETTING IN THE BORE OF A BOLT HOLE. THE FRETTING IS
ATTRIBUTED TO A LOOSE BOLT BETWEEN THE THOMAS COUPLINGS AND THE
ADAPTER.
B. THE PURPOSE OF THIS MESSAGE IS TO:
(1) REQUIRE A ONE TIME INSPECTION OF ALL INBOARD/OUTBOARD
CROSS SHAFT ADAPTERS FOR CRACKS AND TO REQUIRE A CHECK OF NUT
TORQUE.
(2) REQUIRE A RECURRING 25 HOUR INSPECTION TO VISUALLY
INSPECT THE OUTBOARD DRIVE SHAFT LUGS AND ADAPTER LUGS.
(3) EMPHASIZE TO INSPECTION/FLIGHT CREWS THAT THE DAILY
.
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INSPECTION SHALL INCLUDE A VISUAL INSPECTION OF THE INBOARD DRIVE
SHAFT AND ADAPTER LUGS FOR CRACKS.
5. END ITEMS TO BE INSPECTED - ALL CH-47D, MH-47D AND MH-47E
AIRCRAFT WITH SERIAL NUMBERS 81-23381 THROUGH 91-00250. AIRCRAFT
SERIAL NUMBERS 91-00251 AND SUBSEQUENT WILL NOT REQUIRE
IDENTIFICATION OF THE ONE TIME INSPECTION. HOWEVER, ALL CH-47D,
MH-47D AND MH-47E AIRCRAFT REQUIRE THE 25 HOUR RECURRING INSPECTION.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
ADAPTER ASSEMBLY 145D3500-10/-11 N/A
-13/-14
ADAPTER ASSEMBLY 145D3500-16 1615-01-319-5091
ADAPTER ASSEMBLY 145D3500-17 1615-01-319-5092
7. PARTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
ADAPTER, COMBINER(INBOARD) 145D3502-2 1615-01-113-0297
ADAPTER, COMBINER(INBOARD) 145D3502-3 3040-01-356-0976
ADAPTER, ENGINE (OUTBOARD) 145D3501-2 1615-01-113-0296
ADAPTER, ENGINE (OUTBOARD) 145D3501-3 3040-01-355-3397
BOLT 145DS303-3 5306-01-259-2116
.
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BOLT 145DS303-5 5306-01-326-4211
NUT BACN10RJ6 5310-00-106-0075
8. INSPECTION PROCEDURES -
A. GAIN ACCESS TO ENGINE DRIVE SHAFT AREA PER TM
55-1520-240-23, TASK 6-30.1.
NOTE
FOR UNINSTALLED ENGINE DRIVE SHAFTS AND ADAPTERS,
PERFORM ONLY THE VISUAL 4X MAGNIFYING GLASS INSPECTION.
B. VISUALLY INSPECT, USING A 4X POWER MAGNIFYING GLASS, THE
INBOARD AND OUTBOARD ADAPTER AND DRIVE SHAFT NUTS OF BOTH THE NO. 1
AND THE NO. 2 ENGINE DRIVE SHAFTS. IF CRACKS ARE SUSPECTED, REMOVE
AND PERFORM FLUORESCENT PENETRANT INSPECTION.
C. PERFORM A TORQUE CHECK (IN TIGHTENING DIRECTION ONLY) OF ALL
THE ENGINE DRIVE SHAFT NUTS (6 EACH, 4 PLACES). HOLD HEAD OF BOLT
STATIONARY WHILE PERFORMING TORQUE CHECK. IF NUT MOVED INDICATING
THE TORQUE IS LESS THAN 330 INCH POUNDS, MARK THAT NUT WITH A GREASE
PENCIL AND CONTINUE TO CHECK REMAINING NUTS. SEE CORRECTIVE ACTION.
IF THE NUT DID NOT MOVE, TORQUE NUT TO 440 INCH-POUNDS AND PROCEED
TO NEXT NUT. CONTINUE TO CHECK EACH NUT AS DESCRIBED.
.
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9. CORRECTION PROCEDURES -
NOTE
REMOVAL OF COMPONENTS WILL BE REQUIRED TO PERFORM FLUORESCENT
PENETRANT INSPECTION.
WARNING
THE ADAPTER ASSEMBLY IS A BALANCED ASSEMBLY. AT ALL TIMES A MINIMUM
OF TWO BOLTS SHALL ATTACH THE THOMAS COUPLING PLATES TO THE ADAPTER
WITH THE PROPER TORQUE. REMOVING MORE THAN ONE BOLT AT A TIME SHALL
BE CAUSE FOR REMOVAL TO REBALANCE THE ADAPTER ASSEMBLY.
A. IF A CRACK IS SUSPECTED OR NUTS TURNED DURING THE 330 INCH
POUND TORQUE CHECK, REMOVE SUSPECT ADAPTER. REMOVE THE BOLT ON THE
AFFECTED ADAPTER LUG AND PERFORM FLUORESCENT PENETRANT INSPECTION OF
THAT AREA. PAY PARTICULAR ATTENTION AND VISUALLY INSPECT FOR SIGNS
OF FRETTING AROUND BOLTS AND BOLT HOLES. IF NO CRACKS OR FRETTING
ARE VISIBLE REPLACE BOLTS AND REINSTALL DRIVE SHAFT.
B. IF CRACKED, OR FRETTING IS VISIBLE, REPLACE DEFECTIVE PARTS
AND BOLTS. NOTIFY LOGISTICS POC PER PARA 14B.
C. IF NO DEFICIENCIES ARE NOTED IN PARAGRAPH 8, REINSTALL
ACCESS COVERS.
.
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D. PERFORM A VISUAL INSPECTION OF THE OUTBOARD DRIVE SHAFT LUGS
AND ADAPTER LUGS EVERY 25 HOURS.
E. DAILY INSPECTION SHALL PAY PARTICULAR ATTENTION TO THE
INBOARD DRIVE SHAFT LUGS AND ADAPTER LUGS. VISUALLY INSPECT FOR
CRACKS.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - ITEMS CITED IN PARAGRAPHS 6 MAY BE REQUIRED
TO REPLACE DEFECTIVE ITEMS.
B. REQUISITIONING INSTRUCTIONS - USE MILSTRIP FORMAT AND NORMAL
SUPPLY SUPPORT PROCEDURES. MANDATORY ENTRIES ON REQUISITIONS AND
TURN-IN DOCUMENTS ARE:
(1) SIGNAL CODE (CC51) SHALL BE "C" OR "L".
(2) FUND CODE (CC52-53) SHALL BE "H1" (HOTEL-ONE).
(3) PROJECT CODE (CC57-59) SHALL BE "CSJ"
(CHARLIE-SIERRA-JULIETT).
NOTE
SPECIAL PROJECT CODES AND FUND CODES WILL 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
.
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CUSTOMER PAYING FOR THE PART OR A REQUISITION REJECTION. THESE
CODES MUST APPEAR ON BOTH THE REQUISITION AND TURN-IN DOCUMENTS.
C. BULK AND CONSUMABLE MATERIALS - N/A.
D. DISPOSITION - CONTACT LOGISTICAL POC PER PARA 14B AND HOLD
ANY UNSERVICEABLE PART/COMPONENT PENDING DISPOSITION INSTRUCTIONS.
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 MAINTENANCE.
B. TIME REQUIRED -
(1) TOTAL OF 2 MANHOURS USING 2 PERSONS.
(2) TOTAL OF 1 HOUR DOWNTIME FOR ONE END ITEM.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE FIELD -
NOMENCLATURE PART NO./NSN QUANTITY COST EA.
ADAPTER ASSEMBLY 145D3500-16 2 $3802.00
ADAPTER ASSEMBLY 145D3500-17 2 $4527.00
BOLT 145DS303-3 12 $ 14.26
BOLT 145DS303-5 12 $ 19.59
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NUT BACN10RJ6 24 $ .72
WASHER 114D3044-2 24 $ .73
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 - A COPY OF THIS MESSAGE SHALL BE INSERTED IN THE
APPROPRIATE TM AS AUTHORITY TO IMPLEMENT THE CHANGE UNTIL THE
PRINTED CHANGE IS RECEIVED.
(1) TM 55-1520-240-PM (PGS 2-20, 2-25, PARA 4.3 AND 5.3),
CHANGE TO READ:
"REMOVE ENGINE DRIVE SHAFT AND ADAPTERS. CLEAN, INSPECT,
LUBRICATE AND REINSTALL. ALL ENGINE DRIVE SHAFT LUGS AND ADAPTER
LUGS, REQUIRE 4X POWER MAGNIFYING GLASS INSPECTION FOR CRACKS. IF
CRACK IS SUSPECTED, NONDESTRUCTIVE INSPECTION (NDI) VERIFICATION IS
REQUIRED."
(2) TM 55-1520-240-PMD (PGS 20, PRIOR TO SEQUENCE NUMBER
10.23) CHANGE TO READ :
CAUTION
PAY PARTICULAR ATTENTION TO THE INBOARD DRIVE SHAFT LUGS AND ADAPTER
.
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LUGS. VISUALLY INSPECT FOR CRACKS.
(3) TM 55-1520-240-23 (PARA 1-92) CHANGE TO READ:
FREQUENCY: INSPECTION REQUIREMENTS:
25 HOURS VISUALLY INSPECT OUTBOARD DRIVE SHAFT LUGS AND
ADAPTER LUGS.
13. REFERENCES - N/A.
14. RECORDING AND REPORTING REQUIREMENTS -
A. REPORTING COMPLIANCE SUSPENSE DATE (AIRCRAFT) - UPON
ENTERING REQUIREMENTS OF THIS MESSAGE ON DA FORM 2408-13 ON ALL
SUBJECT MDS AIRCRAFT, FORWARD A PRIORITY MESSAGE, DATAFAX OR E-MAIL
TO COMMANDER, AVSCOM, ATTN AMSAV-XSOF (SOF COMPLIANCE OFFICER), PER
AR-95-3. DATAFAX NUMBER IS DSN 693-2064 OR COMMERCIAL 314/263-2064.
E-MAIL ADDRESS IS "AMSAVXSOF (AT SIGN) ST-LOUIS-EMH3.ARMY.MIL". THE
REPORT WILL CITE THIS MESSAGE NUMBER, DATE OF ENTRY IN DA FORM
2408-13, THE AIRCRAFT MISSION DESIGN SERIES AND SERIAL NUMBERS OF
AIRCRAFT IN NUMERICAL ORDER.
B. TASK/INSPECTION REPORTING SUSPENSE DATE (AIRCRAFT) - UNITS
WITH CRACKED OR FRETTING COMPONENTS SHALL FORWARD A PRIORITY MESSAGE
TO: COMMANDER, AVSCOM, ATTN: SFAE-AV-CH-L. THE REPORT WILL CITE
.
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THIS MESSAGE NUMBER, DATE OF INSPECTION, AIRCRAFT SERIAL NUMBER,
IDENTIFYING AIRCRAFT WITH LOW TORQUE, FRETTING OR CRACKS, NO. 1 OR
NO. 2 SIDE, LIST THE LAST THREE VIBRATION CHECKS PRIOR TO
INSPECTION, AND LIST ANY REMOVAL OR REPLACEMENTS OVER THE PAST SIX
MONTHS OF THE ADAPTER OR CROSS SHAFT OF EACH AIRCRAFT.
C. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) - N/A.
D. THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE COMPLETED
IN ACCORDANCE WITH DA PAM 738-751, 15 JAN 88 -
(1) DA FORM 2408-5, EQUIPMENT MODIFICATION RECORD.
(2) DA FORM 2408-13, AIRCRAFT INSPECTION AND MAINTENANCE
RECORD.
(3) DA FORM 2408-15, HISTORICAL RECORD FOR AIRCRAFT.
(4) DA FORM 2408-16, AIRCRAFT COMPONENT HISTORICAL RECORD.
(5) DA FORM 2408-18, EQUIPMENT INSPECTION LIST.
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
A. TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. DWIGHT
BROWN, SFAE-AV-CH-T, DSN 693-1418 OR COMMERCIAL 314/263-1418.
B. LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. RICHARD
.
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YES
MOHS, SFAE-AV-CH-L, DSN 693-1415 OR COMMERCIAL 314/263-1415, FAX DSN
693-1485.
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,
AMSAV-XSOF, DSN 693-9089 OR COMMERCIAL 314/263-9089.
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 AVSCOM COMMAND OPERATIONS CENTER (COC)
DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.