Safety of Flight CH-47-93-01

 

         

                           SYNOPSIS


CH-47-93-01   SAFETY OF FLIGHT MESSAGE, EMERGENCY, IMMEDIATE GROUNDING

              OF CH-47 AND MH-47 SERIES AIRCRAFT.

              232230Z OCT 92, BRAD MEYER, AMSAT-C-XS, X2085.

 
01  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
              CDRATCOM ST LOUIS MO //AMSAT-C-XS//
 
              AIG 8881
 
              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, AMSAT-R-ECC, AMSAV-I-RAAF, AMSAV-MEA, AMSAV-L-AOC
 
 
 
  BRAD MEYER                              
  AMSAT-C-XS, X2085                             MINIMIZE CONSIDERED
 
 
  EDWARD J. HOLLMAN
  CHIEF, SAFETY OFFICE
.
 
                                      UNCLAS
 
 
02  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
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  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
SUBJECT - SAFETY-OF-FLIGHT MESSAGE, EMERGENCY, RCS CSGLD-1860(R1), 
 
IMMEDIATE GROUNDING OF CH-47 AND MH-47 SERIES AIRCRAFT, 
 
(CH-47-93-01).
 
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 - UPON RECEIPT OF THIS MESSAGE THE CONDITION 
 
STATUS SYMBOL OF THE CITED AIRCRAFT SHALL BE CHANGED IMMEDIATELY TO 
 
A RED //X// UNTIL FURTHER NOTICE.  AIRCRAFT AWAY FROM HOME BASE MAY 
 
BE DOWNGRADED TO A CIRCLED RED //X// FOR A ONE-TIME DIRECT FLIGHT TO 
 
THE NEAREST MILITARY BASE WITH ADEQUATE SECURITY AND MAINTENANCE 
 
CAPABILITIES.  GROUND RUN-UPS ARE NOT PERMITTED.
 
.
 
                                      UNCLAS
 
 
04  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
    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 - GROUND AT FINAL DESTINATION.
 
         (2)  FERRY STATUS - GROUND UPON ARRIVAL AT THE NEAREST 
 
MILITARY AIRFIELD WITH ADEQUATE SECURITY AND MAINTENANCE.
 
    E.  MAINTENANCE TRAINERS - SAME AS PARA 1A.
 
    F.  COMPONENT/PARTS IN STOCK INCLUDING WAR RESERVES AT ALL 
 
LEVELS (DEPOT AND OTHERS) - N/A.
 
2.  TASK/INSPECTION SUSPENSE DATE - IMMEDIATE GROUNDING.
 
3.  REPORTING COMPLIANCE SUSPENSE DATE - REPORT COMPLIANCE TO 
 
COMMANDER, ATCOM, ATTN:  AMSAT-C-XS NO LATER THAN 13 NOV 92 PER PARA 
 
14A OF THIS MESSAGE.
 
4.  SUMMARY OF PROBLEM - DURING THE INVESTIGATION OF A CH-47 
 
ACCIDENT IN ALASKA, THE PROBABLE CAUSE WAS ISOLATED TO THE SUSPECTED 
 
MATERIAL FAILURE OF A SCREW IN THE UPPER BOOST ACTUATOR CONTROL 
 
VALVE.  THIS FAILURE WOULD RESTRICT THE TRAVEL OF THE PILOT VALVE IN 
 
THE UPPER BOOST ACTUATOR RESULTING IN REDUCED CONTROLABILITY OF THE 
 
AIRCRAFT.  PEO - AVIATION AND ATCOM ARE WORKING TO GET A FULL
.
 
                                      UNCLAS
 
 
05  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
UNDERSTANDING OF THE PROBLEM AND WILL PROVIDE CONTINUOUS UPDATES 
 
UNTIL THE PROBLEM IS FULLY UNDERSTOOD AND A FINAL FIX IS IDENTIFIED.
 
5.  END ITEMS TO BE INSPECTED - ALL CH-47 AND MH-47 SERIES  
 
AIRCRAFT. 
 
6.  ASSEMBLY COMPONENTS TO BE INSPECTED - N/A.
 
7.  PARTS TO BE INSPECTED - N/A.
 
8.  INSPECTION PROCEDURES - TO BE DETERMINED, A SUBSEQUENT MESSAGE 
 
WILL FOLLOW.
 
9.  CORRECTION PROCEDURES - SAME AS PARA 8 ABOVE.
 
10.  SUPPLY/PARTS AND DISPOSITION - N/A.
 
11.  SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED - N/A.
 
12.  APPLICATION - AIRCRAFT DOWNTIME WILL BE CHARGED TO DEPOT 
 
MAINTENANCE.
 
13.  REFERENCES - N/A.
 
14.  RECORDING AND REPORTING REQUIREMENTS -
 
    A.  REPORTING COMPLIANCE SUSPENSE DATE (AIRCRAFT) - UPON 
 
ENTERING REQUIREMENTS OF THIS MESSAGE ON DA FORM 2408-13-1 ON ALL 
 
SUBJECT MDS AIRCRAFT, FORWARD A PRIORITY MESSAGE, DATAFAX OR E-MAIL 
 
TO COMMANDER, ATCOM, ATTN:  AMSAT-C-XS (SOF COMPLIANCE OFFICER), PER 
 
.
 
                                      UNCLAS
 
 
06  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
AR 95-3.  DATAFAX NUMBER IS DSN 693-2064 OR COMMERCIAL 314/263-2064.  
 
E-MAIL ADDRESS IS "AMSATCXS (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.  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.
 
15.  WEIGHT AND BALANCE - N/A.
 
16.  POINTS OF CONTACT -
 
    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. RON 
 
DALTON, SFAE-AV-CH-L, DSN 693-1440 OR COMMERCIAL 314/263-1440.
 
    C.  FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS MR. 
 
ROGER BARRE, AMSAV-MPPD, DSN 693-1955 OR COMMERCIAL 314/263-1955.
 
    D.  POINT OF CONTACT FOR THIS MESSAGE IS MAJ. VICTOR P.
.
 
                                      UNCLAS
 
 
07  07  232230Z OCT  92  OO  OO    UUUU              ZEXW   2971800Z
 
YES
 
MALMGREN, AMSAT-C-XS, DSN 693-2258 OR COMMERCIAL 314/263-2258.
 
    E.  FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING 
 
CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT MR. 
 
RON VAN REES, AMSAV-IOA, DSN 693-2626 OR COMMERCIAL 314/263-2626.
 
    F.  AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER (COC) 
 
DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7.