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: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
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: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
:
TEXT
:UNCLAS
SUBJECT: AVIATION SAFETY ACTION MESSAGE, MAINTENANCE MANDATORY,
RCS CSGLD-1860(R1), ALL CH-47D, MH-47D, AND MH-47E AIRCRAFT,
INSPECTION AND REPAIR OF AFT PYLON CLAMSHELL DOOR LOWER LATCH TO
PRECLUDE WEAR AND/OR IN-FLIGHT LOSS OF DOORS (CH-47-96-ASAM-09)
(TB 1-1520-240-20-89)
NOTE THIS IS AN AVIATION SAFETY ACTION MESSAGE (ASAM) ISSUED PER
AR 95-3, CHAPTER 5 REVISION VIA MESSAGE, HQ AVSCOM, AMSAV-XSOF,
181900Z SEP 90, SUBJECT: CHANGE TO AR 95-3, CHAPTER 5, SAFETY OF
FLIGHT MESSAGES. THIS ASAM 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 WILL BE CHANGED TO
A RED HORIZONTAL DASH //-//. THE RED HORIZONTAL DASH //-// MAY
BE CLEARED WHEN THE CORRECTION PROCEDURES OF PARA 9 BELOW ARE
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 ASAM WITHIN THE
TIME FRAME REQUIRED WILL CAUSE THE STATUS SYMBOL TO BE UPGRADED
TO A RED //X//.
B. AIRCRAFT IN DEPOT MAINTENANCE - INSPECT AND CORRECT
PRIOR TO ISSUE. AIRCRAFT SHALL NOT BE ISSUED UNTIL COMPLIANCE
WITH THIS ASAM 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 - N/A.
(1) WHOLESALE STOCK - N/A.
(2) RETAIL STOCK - N/A.
G. COMPONENTS/PARTS IN WORK - N/A.
2. TASK/INSPECTION SUSPENSE DATE - WITHIN 100 FLIGHT HOURS.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 04 OCT
1996 PER PARA 14A BELOW OF THIS ASAM.
4. SUMMARY OF PROBLEM -
A. SEVERAL RECENT INCIDENTS HAVE BEEN REPORTED OF AIRCRAFT
LOSING THE AFT PYLON CLAMSHELL DOORS IN-FLIGHT DUE TO FAILURE
FROM VIBRATION OF THE LOWER LATCH PIN OR FITTING WHICH HOLDS THE
DOORS TOGETHER. IN-FLIGHT SEPARATION OF THE CLAMSHELL DOORS FROM
THE AIRCRAFT HAS CAUSED DAMAGE TO THE ROTOR SYSTEM, ENGINE TAIL
CONES, AND AIRFRAMES.
B. MWO 55-1520-240-50-8 (ECP-D082R1) AND MWO 1-1520-240-50-
62 (ECP D190R1) WERE ISSUED TO IMPROVE THE LATCH SYSTEM.
ALTHOUGH THE INCIDENT RATE OF DOORS SEPARATING IN-FLIGHT HAS
DECREASED, THERE HAVE BEEN SEVERAL REPORTS OF CLAMSHELL LATCH
FITTINGS CRACKED AND BROKEN.
C. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS, SEE PARA 12
BELOW.
D. THE PURPOSE OF THIS ASAM MESSAGE IS TO CHECK (INSPECT)
THE AFT PYLON CLAMSHELL DOORS FOR PROPER FIT AND AFFIX A STRAP
ASSEMBLY, WITH LATCH, TO THE LOWER LEFT HAND DOOR ASSEMBLY AT THE
BOTTOM EDGE OF THE OPENING. THIS REPAIR HAS BEEN APPROVED BY
ATCOM ENGINEERING AND THE SMART PROGRAM, AND PUBLISHED IN THE PS
MAGAZINE, MARCH 1996 ISSUE.
5. END ITEMS TO BE INSPECTED - ALL CH-47D, MH-47D, AND MH-47E
AIRCRAFT.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
DOOR, ACCESS, LH 145S4906-2 1560-01-117-4129
DOOR, ACCESS, RH 145S4906-3 1560-01-117-4130
7. PARTS TO BE INSPECTED - N/A.
8. INSPECTION PROCEDURES -
A. PREPARE THE AIRCRAFT FOR SAFE GROUND MAINTENANCE.
B. VISUALLY INSPECT AIRCRAFT FOR INSTALLATION OF THE
CHINOOK LATCH FITTING FIX PER TB 43-PS-520 (PARA. 13A BELOW).
NOTE
IF YOU DO NOT HAVE A COPY OF TB 43-PS-520, CONTACT YOUR
LOCAL LOGISTICS ASSISTANCE REPRESENTATIVE (LAR).
C. IF THE LATCH FITTING FIX PER TB 43-PS-520 HAS BEEN
APPLIED, NO FURTHER ACTION IS REQUIRED. RECORD AND REPORT
COMPLIANCE WITH THIS ASAM IN ACCORDANCE WITH PARA 14 BELOW.
D. IF THE LATCH FITTING FIX PER TB 43-PS-520 HAS NOT BEEN
APPLIED, PROCEED TO PARA 9 BELOW FOR CORRECTIVE ACTION.
9. CORRECTION PROCEDURES -
A. CHECK THE AFT PYLON CLAMSHELL DOORS FOR PROPER FIT PER
TM 55-1520-240-23, TASK 2-281 (D MODEL), AND TM 1-1520-252-23,
TASK 2-273 (E MODEL).
B. LOCALLY MANUFACTURE, ASSEMBLE, AND INSTALL THE STRAP
ASSEMBLY PER
TB 43-PS-520 (PARA 13A BELOW).
C. IF THERE ARE ANY QUESTIONS OR PROBLEMS, CONTACT THE
MAINTENANCE ENGINEERING POINT OF CONTACT LISTED IN PARA 16A
BELOW.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - THE FOLLOWING ITEMS WILL BE REQUIRED TO
LOCALLY MANUFACTURE AND INSTALL THE STRAP ASSEMBLY -
NOMENCLATURE PART NUMBER NSN QUANTITY
PER ACFT
CATCH, CLAMPING 214P8078-6 5340-01-244-4124 1
9170-REV J - 0R -
LATCH ASSEMBLY H976-7 5340-01-028-0086 1
9170
RIVETS, MONEL, MS2042M4-4 5320-00-118-2005 A/R
COUNTERSUNK
B. REQUISITIONING INSTRUCTIONS - REQUISITION
REPLACEMENT PARTS THROUGH NORMAL SUPPLY CHANNELS USING NORMAL
SUPPLY PROCEDURES. ALL REQUISITIONS SHALL USE PROJECT CODE XCH
PER THIS MESSAGE.
NOTE
PROJECT CODE XCH 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 -
NOMENCLATURE PART NUMBER NSN QUANTITY
PER ACFT
STAINLESS STEEL, AMS 5517 9515-00-833-4855 A/R
TYPE 301, 1/4 HARD
O.040 INCH THICK
STAINLESS STEEL, AMS 5517 9515-00-231-8623 A/R
TYPE 301, 1/4 HARD
O.063 INCH THICK
D. DISPOSITION - N/A.
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 10 MAN-HOURS USING 2 PERSONS.
(2) TOTAL OF 2 HOURS DOWNTIME FOR ONE END ITEM.
C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE FIELD -
NOUN PART NO. NSN QTY UNIT COST TOTAL COST
CATCH 114P8078-6 5340-01-244-4124 1 260.32 260.32
CLAMPING
LATCH H976-7 5340-01-028-0086 1 33.81 33.81
ASSEMBLY
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 -
(1) TM 55-1520-240-23.
(2) TM 1-1520-252-23.
(3) A COPY OF THIS ASAM SHALL BE INSERTED IN THE
APPROPRIATE TM AS AUTHORITY TO IMPLEMENT THE CHANGE UNTIL THE TAG
PRINTED CHANGE IS RECEIVED. PEN AND INK CHANGES ARE AUTHORIZED.
13. REFERENCES -
A. TB 43-PS-520.
B. TM 55-1520-240-23.
C. TM 1-1520-252-23.
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 ASAM 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 WILL FORWARD A PRIORITY MESSAGE TO: COMMANDER, ATCOM, ATTN:
AMCPM-CH-L. THE REPORT WILL CITE THIS ASAM MESSAGE NUMBER, DATE
OF COMPLIANCE, AND AIRCRAFT SERIAL NUMBER. REPORTS WILL BE
COMPLETED NO LATER THAN 7 DAYS AFTER TASK/INSPECTION SUSPENSE
DATE.
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 2408-13, 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.
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
A. MAINTENANCE ENGINEERING POINT OF CONTACT FOR THIS
MESSAGE IS MR. RON DESPLINTER, AMSAT-I-MEU, DSN 490-2263 OR
COMMERCIAL 314/260-2263.
B. TECHNICAL POINTS OF CONTACT FOR THIS MESSAGE ARE MR.
LARRY WIESCHHAUS, AMSAT-R-ECC, DSN 693-3820/6678 OR COMMERCIAL
314/263-3820/6678, RESPECTIVELY.
C. 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.
D. WHOLESALE MATERIEL POINT OF CONTACT (SPARES) FOR THIS
MESSAGE IS MR. HAL BARNES, AMSAT-I-SACA, COMMERCIAL TELEPHONE
314/263-6031 AND FAX 314/263-6022 DSN 693-6031 AND FAX 693-6022.
E. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS
MS. ANN WALDECK, AMSAT-I-MDM, DSN 490-2318 OR COMMERCIAL 314/260-
2318.
F. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. JIM
WILKINS, AMSAT-R-X, DSN 693-2258 OR COMMERCIAL 314/263-2258.
G. FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT
MR. RON VAN REES, AMSAT-I-IAF, DSN 693-3826/3659 OR COMMERCIAL
314/263-3826/3659.
H. AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER
(AOC), DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.