Safety of Flight CH-47-99-01

 

         
CH-47D Sync Shaft Lord Mount Mounting Brackets.

 

         

01  13  301510Z  JUN  99  OO  PP  UUUU      AA  ZYUW                                                                   14264  
FROM
:CDRAMCOM REDSTONE ARSENAL AL//AMSAM-SF-A//
TO
:AIG 8881
:AIG 9004
:AIG 7471
:AIG 12124
:USMILGP BUENOS AIRES AR//ARMY AND AF SEC//
:DEFAIR MATERIAL CANBERRA ACT AS//DAAP-AF//
:CDRUSARDSG CANBERRA ACT AS//AMXIP-AS//
:ARGENTINE AIR ATTACHE FMS WASHINGTON DC
:EGYPT AF FMS CAIRO EG//ED/MA//
:USOMC CAIRO EG//AV//
:ODC ATHENS GR//ODCSA//
:CDR1STBN228THAVN SOTO CANO HO//AVN-AMO//
:CHJUSMAG SEOUL KOR//MKAR-AV//
:ROK ARMY FMS PUSAN KOR//ALC-LSD-L//
:CDR160THSOAR FT CAMPBELL KY//AOAV-SI//
:CDRBGAD RICHMOND KY//SIOBG-GC//
:USDAO RABAT MO//AF//
:ODC THE HAGUE NL//AVIATION SAFETY//
:RNLAF MATERIAL THE HAGUE NL
:RNLAF OPERATIONS THE HAGUE NL
: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 AF FMS BANGKOK TH//BANGSUE DEPOT//
:ROYAL THAI ARMY FMS BANGKOK TH//DUSIT ORDANCE DEPOT//
:CDRUSARDSG LONDON UK//AMXSN-UK-SE//
:ODC LONDON UK
INFO
:FAA SOUTHWEST RGN HQ FORT WORTH TX//ASW-100//
:CDRAMC ALEXANDRIA VA//AMCMR/AMCCS/AMCSM-WAA//
XMT
:
ACCT
:
TEXT
:UNCLAS
SUBJECT - SAFETY OF FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-
1860(R1), CH/MH-47D/E, ONE TIME INSPECTION OF SYNC SHAFT MOUNTING
BRACKETS FOR PROPER CLEARANCE TO SYNC SHAFT, CH-47-99-01
(TB 1-1520-240-20-111).
NOTE - THIS IS A SAFETY OF FLIGHT MESSAGE ISSUED IAW AR 95-1,
CHAPTER 6, 1 SEP 97.  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 TRANSMISSION
TO CDR, AMCOM, ATTN:  AMSAM-SF-A (SOF COMPLIANCE OFFICER).
1.  PRIORITY CLASSIFICATION -
NOTE - SEE AR 95-1, PARA 6-6A, FOR EXCEPTION 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 //-// ENTRY SHALL
STATE "COMPLETE THE INSPECTION PROCEDURES IAW SOF MESSAGE
CH-47-99-01, TB 1-1520-240-20-111 WITHIN THE NEXT 10 HOURS/14 DAYS".
THE RED HORIZONTAL DASH //-// MAY BE CLEARED WHEN THE INSPECTION OF
PARA 8 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 - AIRCRAFT WILL NOT BE ISSUED
UNTIL COMPLIANCE WITH THIS SOF HAS BEEN COMPLETED.
    C.  AIRCRAFT UNDERGOING MAINTENANCE - AIRCRAFT WILL NOT BE
RELEASED UNTIL COMPLIANCE WITH THIS SOF MESSAGE HAS BEEN COMPLETED.
    D.  AIRCRAFT IN TRANSIT -
        (1)  SURFACE/AIR SHIPMENT - SAME AS PARA 1A.
        (2)  FERRY STATUS -
             (A)  SAME AS PARA 1A.
             (B)  THOSE AIRCRAFT THAT HAVE A DD 250 AND ARE AT BOEING
WILL BE INSPECTED PRIOR TO FERRY TO FINAL DESTINATION.
    E.  MAINTENANCE TRAINERS (CATEGORY A AND B) COMPLY WITHIN 30 DAYS
OF RECEIPT OF THIS MESSAGE.
    F.  COMPONENT/PARTS IN STOCK AT ALL LEVELS (DEPOT AND OTHERS)
INCLUDING WAR RESERVES - UPON RECEIPT OF THIS MESSAGE THE MATERIAL
CONDITION TAGS OF ALL ITEMS IN ALL CONDITION CODES LISTED IN
PARAGRAPH 7 SHALL BE ANNOTATED TO READ "CH-47-99-01 (TB
1-1520-240-20-111, ONE TIME INSPECTION OF SYNC SHAFT MOUNTING
BRACKETS FOR PROPER CLEARANCE TO SYNC SHAFT NOT COMPLIED WITH."
        (1)  WHOLESALE STOCK - N/A.
        (2)  RETAIL STOCK - N/A.
    G.  COMPONENTS/PARTS IN WORK (DEPOT LEVEL AND OTHERS) - N/A
2.  TASK/INSPECTION SUSPENSE DATE - WITHIN NEXT 10 FLIGHT HOURS/14
DAYS.
3.  REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 23 JULY 99 IAW
PARA 14A OF THIS MESSAGE.
4.  SUMMARY OF PROBLEM -
    A.  A DEFICIENCY REPORT HAS BEEN RECEIVED ON UNACCEPTABLE
CLEARANCE BETWEEN THE SYNC SHAFT ASSEMBLY AND THE MOUNTING BRACKET
(COMMONLY REFERRED TO AS THE LORD MOUNT MOUNTING BRACKET).  THE
CLEARANCE WAS REPORTED TO BE .010 INCH.  A SPECIFIC MANUFACTURER FOR
THIS BRACKET HAS BEEN IDENTIFIED AS DAVIDSON FABRICATING CO, (FSCM
31684).  THE INSTALLATION DRAWING STATES THE PROPER CLEARANCE BETWEEN
STRUCTURE AND THE ROTATING SYNC SHAFTS IS .25 INCHES.  INSPECTION BY
THE UNIT REVEALED THAT OTHER BRACKETS ALSO EXHIBITED CLEARANCE OF
LESS THAN .25 INCHES.
    B.  FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE PARA 12.
    C.  THE PURPOSE OF THIS MESSAGE IS TO PERFORM A ONE TIME
INSPECTION OF ALL SYNC SHAFT MOUNTING BRACKETS TO ENSURE PROPER
CLEARANCE FROM THE ROTATING SYNC SHAFTS AND SURROUNDING STRUCTURE.
5.  END ITEMS TO BE INSPECTED - ALL CH/MH-47D/E AIRCRAFT.
6.  ASSEMBLY COMPONENTS TO BE INSPECTED - N/A
7.  PARTS TO BE INSPECTED -
    NOMENCLATURE          PART NO.           NSN
      BRACKET           114S2352-35     1560-00-925-2884
      BRACKET           114S2352-36     5340-00-945-5770
      BRACKET           114S2352-37     5340-00-925-2893
      BRACKET           114S2352-38     1560-00-925-2892
      BRACKET           114S2352-39     1560-00-179-0400
      BRACKET           114S2352-40     5342-00-179-0399
      BRACKET           114S2352-41     1560-00-179-0398
      BRACKET           114S2352-42     1560-00-925-2950
      BRACKET           114S3365-37     5342-00-113-5972
      BRACKET           114S3365-38     5342-00-113-5971
8.  INSPECTION PROCEDURES -
    A.  GAIN ACCESS TO SYNC SHAFTS.
    B.  VERIFY THAT CLEARANCE BETWEEN ANY AIRCRAFT NON ROTATING
STRUCTURE (PAY PARTICULAR ATTENTION TO THE SHAFT MOUNTING BRACKETS)
AND THE ROTATING SYNC SHAFT IS AT LEAST .25 INCHES.  ROTATE THE SHAFT
AT LEAST ONE FULL REVOLUTION WHILE CHECKING TO ENSURE THAT MINIMUM
CLEARANCES ARE OBTAINED.  MOVE THE SHAFT BY HAND AS FAR FORWARD AND
AFT AS POSSIBLE WHILE MAKING CHECK, AS CLEARANCE MAY BE REDUCED BY
SHAFT RIVETS.
    C.  IF CLEARANCE IS LESS THAN .25 INCHES, PERFORM CORRECTION
PROCEDURES OF PARAGRAPH 9.
    D.  IF EVIDENCE OF CONTACT HAS BEEN MADE, CONTACT THE TECHNICAL
POC LISTED IN PARA 16A FOR FURTHER INSTRUCTIONS.
9.  CORRECTION PROCEDURES -
                           CAUTION
            AS DAMAGE TO THE SYNC SHAFT MAY OCCUR IF
            CORRECTIONS ARE DONE WITH SYNC SHAFTS INSTALLED,
            IT IS RECOMMENDED THE SHAFTS BE REMOVED IAW TASKS
            6-2/6-3 AND 6-4 OF TM 55-1520-240-23-5 OR TASKS
            6-2/6-3 AND 6-4 OF TM 1-1520-252-23-6.
    A.  MARK MOUNTING BRACKET AT PLACE WHERE PROPER CLEARANCE WILL BE
OBTAINED.
                           CAUTION
            MINIMUM DISTANCE FROM THE EDGE OF THE
            MOUNTING BOLT HOLE TO THE EDGE OF THE
            BRACKET SHALL BE NO LESS THAN .244 INCHES.
    B.  FILE/GRIND EXCESS MATERIAL REQUIRED TO OBTAIN THE REQUIRED
.25 INCH CLEARANCE BETWEEN THE SYNC SHAFT AND THE BRACKET EDGE.
    C.  DEBURR.
    D.  REMOVE ALL METAL SHAVINGS.
    E.  CLEAN EXPOSED AREAS OF THE MOUNTING BRACKET WITH ACETONE.
    F.  APPLY MIL-P-23377 PRIMER TO THE BARE METAL SURFACES OF
BRACKET.
    G.  REINSTALL SHAFTS IF REMOVAL WAS REQUIRED IAW TASKS 6-17/6-18
AND 6-19 OF TM 55-1520-240-23-5 OR TASKS 6-18/6-19 AND 6-20 OF
TM 1-1520-252-23-6.
    H.  IF DRIVE SHAFTS WERE REMOVED PERFORM MAINTENANCE OPERATION
CHECK AS REQUIRED TM 55-1520-240-10 OR TM 1-1520-252-10.
10.  SUPPLY/PARTS AND DISPOSITION -
     A.  PARTS REQUIRED - ITEMS CITED IN PARAGRAPH 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 "XFU" (X-RAY-FOXTROT-UNIFORM),
PER THIS MESSAGE.
                              NOTE
            PROJECT CODE "XFU", (X-RAY-FOXTROT-UNIFORM),
            IS REQUIRED TO TRACK AND ESTABLISH A DATA
            BASE OF STOCK FUND EXPENDITURES INCURRED
            BY THE FIELD AS A RESULT OF SOF ACTIONS.
     C.  BULK AND CONSUMABLE MATERIALS - N/A.
     D.  DISPOSITION - DISPOSE OF REMOVED PARTS/COMPONENTS IAW NORMAL
SUPPLY PROCEDURES.  A CATEGORY 2 QDR IS REQUIRED FOR EACH BRACKET
THAT REQUIRES THE CORRECTION PROCEDURES IN PARAGRAPH 9.
     E.  DISPOSITION OF HAZARDOUS MATERIAL  IAW ENVIRONMENTAL
PROTECTION AGENCY DIRECTIVES AS IMPLEMENTED BY YOUR SERVICING
ENVIRONMENTAL COORDINATOR (AR 200-1).
11.  SPECIAL TOOLS AND FIXTURES REQUIRED - AS REQUIRED.
12.  APPLICATION -
     A.  CATEGORY OF MAINTENANCE - AVUM.  AIRCRAFT DOWNTIME WILL BE
CHARGED TO AVUM.
     B.  ESTIMATED TIME REQUIRED -
         (1)  FOR INSPECTION -
              (A)  TOTAL OF 5 MAN-HOURS USING 2 PERSONS.
              (B)  TOTAL OF 2.5 HOURS DOWNTIME FOR ONE END ITEM.
         (2)  REPAIR OF THE SYNC SHAFT MOUNTING BRACKET CAN VARY
DEPENDING ON THE LOCATION OF THE BRACKET AND THE REQUIREMENT TO
REMOVE THE SYNC SHAFT PRIOR TO REPAIR OF THE BRACKET.  IF THE SYNC
SHAFT MUST BE REMOVED, USE THE FOLLOWING TO ESTIMATE THE TIME
REQUIRED TO REPAIR ONE MOUNTING BRACKET -
              (A)  TOTAL OF 8 MAN-HOURS USING 2 PERSONS.
              (B)  TOTAL OF 4 HOURS DOWNTIME FOR ONE END ITEM.
     C.  ESTIMATED COST IMPACT 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
INSPECTION - REFERENCES 13A AND 13B SHALL BE CHANGED TO REFLECT
CLEARANCE CHECK REQUIREMENT CONTAINED IN THIS MESSAGE ANY TIME
MAINTENANCE IS PERFORMED IN THIS AREA.  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.  TM 55-1520-240-23, CH-47D MAINTENANCE MANUAL.
     B.  TM 1-1520-252-23, MH-47E MAINTENANCE MANUAL.
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 CDR, AMCOM, ATTN:  AMSAM-SF-A (SOF COMPLIANCE OFFICER), REDSTONE
ARSENAL, AL 35898-5000, IAW AR 95-1.  DATAFAX NUMBER IS DSN 897-2111
OR (256) 313-2111.  E-MAIL ADDRESS IS SAFEADM@REDSTONE.ARMY.MIL.  THE
REPORT WILL CITE CH-47-99-01, 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) - NO
SPECIAL REPORT OF THE RESULTS OF THIS INSPECTION IS REQUIRED.
     C.  REPORTING MESSAGE RECEIPT (SPARES) -
         (1)  MATERIEL IN WHOLESALE DEPOT STORAGE - N/A.
         (2)  MATERIEL IN RETAIL STORAGE - N/A.
     D.  TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES).
         (1)  MATERIEL IN WHOLESALE DEPOT STORAGE - N/A.
          (2)  MATERIEL IN RETAIL STORAGE - N/A.
     E.  THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE COMPLETED
IAW DA PAM 738-751, 15 MAR 99 -
                             NOTE
            ULLS-A USERS WILL USE APPLICABLE "E" FORMS.
          (1)  DA FORM 2408-13, AIRCRAFT STATUS INFORMATION RECORD.
          (2)  DA FORM 2408-13-1, AIRCRAFT INSPECTION AND MAINTENANCE
RECORD.
          (3)  DA FORM 2408-14, UNCORRECTED FAULT RECORD.
          (4)  DA FORM 2408-15, HISTORICAL RECORD FOR AIRCRAFT.
          (5)  DD FORM 1574/DD FORM 1574-1, SERVICEABLE TAG/LABEL -
MATERIEL (COLOR YELLOW).  (ANNOTATE REMARKS BLOCK WITH "INSPECTED
SERVICEABLE IAW CH-47-99-01").
          (6)  DD FORM 1577-2/DD FORM 1577-3, UNSERVICEABLE
(REPAIRABLE) TAG/LABEL - MATERIEL (COLOR GREEN).  (ANNOTATE REMARKS
BLOCK WITH "UNSERVICEABLE IAW CH-47-99-01").
15.  WEIGHT AND BALANCE - N/A.
16.  POINTS OF CONTACT -
     A.  TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR DENNIS
GANEY, AMSAM-AR-E-I-C-H, DSN 897-3361 OR (256) 313-3361, DATAFAX
IS (256) 313-4348.  E-MAIL IS "GANEYD@REDSTONE.ARMY.MIL".
     B.  LOGISTICAL POINT OF CONTACT FOR THIS MESSAGE IS MR BILL
OLSON, SFAE-AV-CH-L, DSN 897-3379 OR (256) 313-3379, DATAFAX IS
DSN 897-4348 OR (256) 313-4348.
E-MAIL IS OLSONW@PEOAVN.REDSTONE.ARMY.MIL
     C.  FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS
MS. ANN WALDECK, AMSAM-MMC-RE-FF DSN 746-5564 OR (256) 876-5564,
DATAFAX IS DSN 746-4904.  E-MAIL IS "WALDECK-AB@REDSTONE.ARMY.MIL".
     D.  SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. ROBERT
D. BROCK, AMSAM-SF-A, DSN 788-8632 OR (256) 842-8632 DATAFAX IS
DSN 897-2111 OR (256) 313-2111.  E-MAIL IS
"BOB.BROCK@REDSTONE.ARMY.MIL".
     E.  FOREIGN MILITARY SALES RECIPIENTS REQUIRING CLARIFICATION OF
ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT: CW5 JOSEPH L.
WITTSTROM, SECURITY ASSISTANCE MANAGEMENT, AMSAM-SA, DSN 897-0681 OR
(256) 313-0681.  EMAIL IS "WITTSTROMJL@REDSTONE.ARMY.MIL" OR MR.
RONNIE W. SAMMONS, AMSAM-SA-CS-NF, DSN 897-0869 OR (256) 313-0869.
DATAFAX IS DSN 897-0411 OR (256) 313-0411.  EMAIL IS
"SAMMONSRW@REDSTONE.ARMY.MIL".  HUNTSVILLE, AL IS GMT MINUS 6 HRS.
     F.  AFTER HOURS CONTACT THE AMCOM COMMAND OPERATIONS CENTER
(COC) DSN 897-2066/7 OR (256) 313-2066/7.