Boeing CH-47 Chinook Aviation Safety Action Message CH-47-95-ASAM-07, One time records check for MWO 1-1520-240-50-69, Reinstallation of MWO 1-1520-240-50-69 for rotor heads that were modified in Europe, and recurring visual inspection for Slipped Bushings and/or cracked Pitch Housing Lugs for Rotor Heads that have MWO 1-1520-240-50-69 applied.

01 13 061805Z SEP 95 PP PP UUUU

FROM
:CDRATCOM ST LOUIS MO//AMSAT-R-X//
TO
:AIG 6713
:AIG 9004
:AIG 8708
:AIG 9042
:AIG 7471
: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
: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//
:CDR4THBN228THAVN SOTO CANO HO//AVN-AMO//
:102DARMY SCOTT AFB IL//AFRC-AMO-ASF-IL//
:CHJUSMAG SEOUL KOR//MKAR//
: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//
: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
INFO
: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
:
TEXT
:UNCLAS
SUBJECT - AVIATION SAFETY ACTION MESSAGE, MAINTENANCE
SUBJECT - AVIATION SAFETY ACTION MESSAGE, MAINTENANCE
MANDATORY FOR ALL ARMY CH-47, MH-47D, AND MH-47E AIRCRAFT,
ONE TIME RECORDS CHECK FOR MWO 1-1520-240-50-69,
REINSTALLATION OF MWO 1-1520-240-50-69 FOR ROTOR HEADS THAT
WERE MODIFIED IN EUROPE, AND RECURRING VISUAL INSPECTION FOR
SLIPPED BUSHINGS AND/OR CRACKED PITCH HOUSING LUGS FOR ROTOR
HEADS THAT HAVE MWO 1-1520-240-50-69 APPLIED, (CH-47-95-ASAM
07)(TB 1-1520-240-20-79).
NOTE - THIS IS AN AVIATION SAFETY ACTION MESSAGE 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 MESSAGE 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 RETRANSMISSION
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 INSPECTION OF PARA 8
BELOW IS 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 MESSAGE WITHIN THE TIME FRAME WILL
CAUSE THE STATUS SYMBOL TO BE UPGRADED TO A RED //X//.
    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 - PRIOR TO FIRST FLIGHT.
     (2)  FERRY STATUS - PRIOR TO FIRST FLIGHT.
    E.  MAINTENANCE TRAINERS (CATEGORY A, B) - SAME AS PARA
1A.
    F.  COMPONENT/PARTS IN STOCK INCLUDING WAR RESERVES AT
ALL LEVELS (DEPOT AND OTHERS) - APPLIES TO USAREUR ONLY.
2.  TASK/INSPECTION SUSPENSE DATE - WITHIN 10 HOURS/14
DAYS. 3.  REPORTING COMPLIANCE SUSPENSE DATE - NO LATER
THAN 27 SEP 1995 PER PARA 14A OF THIS MESSAGE.
4.  SUMMARY OF PROBLEM -
     A.  AFTER THE APPLICATION OF MWO 1-1520-240-50-69 IN
EUROPE, A DAILY INSPECTION FOUND A SLIPPED BUSHING IN THE
LOWER LUG OF THE PITCH HOUSING ON AN AIRCRAFT IN ITALY.
THE SLIPPED BUSHING MAY HAVE BEEN CAUSED BY EITHER IMPROPER
INTERFERENCE BETWEEN THE BUSHING AND LUG OR DAMAGE TO THE
BORE CAUSED BY IMPROPER INSTALLATION TECHNIQUES OF THE
PREVIOUS AND/OR CURRENT MWO.
      B.  FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE
PARA 12.
      C.  THE PURPOSE OF THIS MESSAGE IS TO PERFORM A ONE
TIME RECORDS CHECK FOR MWO 1-1520-240-50-69, REINSTALLATION
OF MWO 1-1520-240-50-69 FOR ROTOR HEADS THAT WERE MODIFIED
IN EUROPE, AND RECURRING VISUAL INSPECTION FOR SLIPPED
BUSHINGS AND/OR CRACKED PITCH HOUSING LUGS FOR ROTOR HEADS
THAT HAVE MWO 1-1520-240-50-69 APPLIED.
5.  END ITEMS TO BE INSPECTED - ALL AIRCRAFT THAT HAVE
ROTOR HEADS MODIFIED BY MWO 1-1520-240-50-69.
6.  ASSEMBLY COMPONENTS TO BE INSPECTED -
    NOMENCLATURE            PART NO.        NSN
PITCH HOUSING           145R2075-11     3040-01-115-3621
PITCH HOUSING           145R2075-12     3040-01-115-3608
7.  PARTS TO BE INSPECTED -
    NOMENCLATURE            PART NO.         NSN
BUSHING                 SK33346-1       3120-01-H78-5748
BUSHING                 SK33346-2       3120-01-416-0575
8.
  INSPECTION PROCEDURES -
    A.  FOR AIRCRAFT THAT HAVE MWO 1-1520-240-50-69
APPLIED, VISUALLY INSPECT THE PITCH HOUSING FOR CRACKED
LUGS AND SLIPPED BUSHINGS ON A DAILY BASIS.  IF A CRACKED
LUG IS FOUND, REPLACE THE ROTOR HEAD PRIOR TO THE NEXT
FLIGHT.  IF A SLIPPED BUSHING IS FOUND, CONTACT TECHNICAL
POINT OF CONTACT FOR INSTRUCTIONS.
    B.  CHECK THE EQUIPMENT MODIFICATION RECORD 2408-5 OR
2408-5-1.  IF THE RECORDS INDICATE THAT THE MWO WAS APPLIED
IN EUROPE, PROCEED TO PARAGRAPH 9 FOR THE CORRECTIVE
PROCEDURES.  IF THE RECORDS INDICATE THAT THE MWO WAS
APPLIED IN ANOTHER PLACE OTHER THAN IN EUROPE, PARAGRAPH 8A
STILL APPLIES.
9.  CORRECTION PROCEDURES -
   A.  FOR AIRCRAFT AND ROTOR HEADS THAT ARE IN EUROPE AND
HAD MWO 1-1520-240-50-69 APPLIED IN EUROPE PRIOR TO THIS
ASAM, HAVE A NEW TBO OF 400 HOURS SINCE THE APPLICATION OF
THE MWO.  AT THE NEXT AIRCRAFT PHASE MAINTENANCE, WORK
ORDER THE ROTOR HEAD TO B CO/70TH TRANS BATTALION AVIM FOR
REAPPLICATION OF THE MWO 1-1520-240-50-69 WITH REVISED
INSTALLATION TECHNIQUES.  AFTER REAPPLICATION OF THE MWO,
ADJUST THE TIME CHANGE REQUIREMENT FOR THE HEAD BACK TO
REFLECT THE ORIGINAL TBO.  ALSO ANNOTATE ON RECORDS THAT
THE MWO WAS COMPLETELY REAPPLIED IAW THIS ASAM.
    B.  FOR AIRCRAFT AND ROTOR HEADS THAT WERE MODIFIED IN
EUROPE BUT ARE NO LONGER IN EUROPE, CONTACT THE LOGISTICAL
POINT OF CONTACT FOR INSTRUCTIONS.
    C. FOR AIRCRAFT AND ROTOR HEADS THAT WERE NOT MODIFIED
IN EUROPE AND HAVE A SLIPPED BUSHING, CONTACT THE TECHNICAL
POINT OF CONTACT.
10.  SUPPLY/PARTS AND DISPOSITION -
     A.  PARTS REQUIRED - ITEMS CITED IN PARAGRAPHS 6 AND 7
MAY BE REQUIRED TO REPLACE DEFECTIVE ITEMS.
     B.  REQUISITIONING INSTRUCTIONS -
REQUISITION REPLACEMENT PARTS THROUGH NORMAL SUPPLY
CHANNELS USING NORMAL SUPPLY PROCEDURES.  ALL REQUISITIONS
SHALL USE PROJECT CODE "XBI" PER THIS MESSAGE.
                         NOTE
    PROJECT CODE XBI 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 -
DISPOSE OF REMOVED PARTS/COMPONENTS IN ACCORDANCE WITH
NORMAL SUPPLY PROCEDURES. A QDR MAY BE REQUIRED IF A
CRACKED PITCH HOUSING AND/OR A SLIPPED BUSHING IS FOUND.
HOLD ANY UNSERVICEABLE PART/COMPONENT PENDING DISPOSITION
INSTRUCTIONS FROM TECHNICAL/LOGISTICAL POINT OF CONTACT PER
PARA 16 BELOW.
     E.  DISPOSITION OF HAZARDOUS MATERIAL - N/A.
11.  SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED -  REFER TO
MWO 1-1520-240-50-69.
12.  APPLICATION -
     A.  CATEGORY OF MAINTENANCE - DEPOT.  AIRCRAFT
DOWNTIME WILL BE CHARGED TO DEPOT MAINTENANCE.
     B.  ESTIMATED TIME REQUIRED -
          (1) TOTAL OF 1 MANHOUR USING ONE MAN TO COMPLETE
VISUAL AND ANNOTATE THE RECORDS.  (TOTAL OF 1 MANHOUR
DOWNTIME.)
                         NOTE
    THIS IS FOR A REAPPLICATION OF MWO 1-1520-240-50-69
    FOR USAREUR ONLY.
         (2)  TOTAL OF 25 MANHOURS USING 2 PERSONS.
         (3)  TOTAL OF 25 HOURS DOWNTIME FOR ONE END ITEM.
     C.  ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE
FIELD-
NOMENCLATURE   PART NO./NSN  QUANTITYCOST EA.  TOTAL $
FWD HEAD  145R2003-10  1615-01-391-4398  164,524   164,424
AFT HEAD  145R2004-20  1615-01-391-4399  174,807   174,807
          TOTAL COST PER AIRCRAFT = $339,231
                         NOTE
    THIS COST IS INCURRED ONLY IF THE FWD OR AFT ROTOR
    HEAD REQUIRE REPLACEMENT.
     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 - TM 55 1520-240-PMD AND TM 1-1520-252-PMD
SHALL BE CHANGED TO REFLECT A DAILY VISUAL INSPECTION FOR
SLIPPED BUSHINGS AND CRACKED PITCH HOUSING LUGS.  A COPY OF
THIS MESSAGE SHALL BE INSERTED IN THE APPROPRIATE TM AS
AUTHORITY TO IMPLEMENT THE CHANGE UNTIL THE PRINTED CHANGE
IS RECEIVED.
13.  REFERENCES -
     A.  MWO 1-1520-240-50-69
     B.  TM 55-1520-240-PMD.
     C.  TM 1-1520-252-PMD.
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) - N/A.
     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 (COMPONENT), IF MWO 1-1520-240-50-69 IS REAPPLIED.
          (2)  DA FORM 2408-13, AIRCRAFT STATUS INFORMATION RECORD.
          (3)  DA FORM 2408-13-1, AIRCRAFT INSPECTION AND MAINTENANCE
RECORD.
          (4)  DA FORM 2408-15, HISTORICAL RECORD FOR AIRCRAFT.
          (5)  DA FORM 2408-16, AIRCRAFT COMPONENT HISTORICAL RECORD.
          (6)  DA FORM 2410, COMPONENT REMOVAL AND REPAIR/OVERHAUL
RECORD.
15.  WEIGHT AND BALANCE - N/A.
16.  POINTS OF CONTACT -
     A.  TECHNICAL POINTS OF CONTACT FOR THIS MESSAGE ARE
MR. DAVID BRAUN, CONTRACTOR, AND MR. MIKE WRIGHT, AMSAT-R
ECC, DSN 693-6679/-3550 OR COMMERCIAL 314/263-6679/-3550,
RESPECTIVELY.
     B.  LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS
MR. NORM HUSTON, AMCPM-CH-L, DSN 693-1415 OR COMMERCIAL
314/2631415.
     C.  FORMS AND RECORDS POINT OF CONTACT FOR THIS
MESSAGE IS MS. ANN WALDECK, AMSAT-I-MDM, DSN 693-1821
OR COMMERCIAL 314/263-1821.
     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/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
(AOC) DSN 693-2066/7 OR COMMERCIAL 314./263-2066/7.