Safety of Flight CH-47-02-05

 

         
Inspection of Tie Bars

 

          Summary of Problem: CH-47-02-03 was issued on 24 January 2002 requiring inspection of the Tie Bar Assembly and Rotor Tachometer. With regard to the tie bar inspections, the intent of the message was to inspect for cracked plates and deformation of washers only. Scores, scratches, buckling/separation of plates, and other minor installation damage are not grounds for failing this special inspection. The 1200 hour operating time special inspection will still be required. At the time the 1200 hour operating time special inspection is due, all tie bars that fail the inspection criteria of TM 55-1520-240-23, TASK 5-23.1.1 (H-47D/F), or TM 1-1520-252-23, TASK 5-31 (MH-47E), will require replacement.

UNCLASSIFIED

MSG DTG 222110Z MAR 02

FROM CDRAMCOM, REDSTONE ARSENAL, AL  //AMSAM-SF-A//

SUBJECT - SAFETY OF FLIGHT, TECHNICAL, RCS CSGLD-1860(R1), ALL 
H-47 SERIES AIRCRAFT, INSPECTION OF THE ROTARY WING HEAD TIE BAR 
ASSEMBLY, CH-47-02-05 (TB 1-1520-240-20-146).
                             NOTE
            THIS MESSAGE SUPERCEDES INSPECTION AND CORRECTION 
            REQUIREMENTS OF PARAGRAPHS 8B AND 9A (TIE BAR ASSY) OF 
            CH-47-02-03 (TB 1-1520-240-20-141) FOR AIRCRAFT THAT 
            HAVE NOT ALREADY BEEN INSPECTED.  TIE BARS/AIRCRAFT 
            THAT PASSED INSPECTION IAW CH-47-02-03 DO NOT REQUIRE 
            RE-INSPECTION.  THIS MESSAGE PROVIDES REVISED 
            INSPECTION AND CORRECTION PROCEDURES FOR THE TIE BAR 
            ASSY. AND PROVIDES ADDITIONAL TM CHANGES IN PARA 12 
            THE PROCEDURES RELATING TO THE ROTOR TACH IN 
            CH-47-02-03 (TB 1-1520-240-20-141) REMAIN UNCHANGED.
                             NOTE
THIS MESSAGE IS ISSUED IAW AR 95-1, 1 SEP 97, CHAPTER 6.  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 ADDRESSEES WILL IMMEDIATELY VERIFY THIS TRANSMISSION TO 
CDR, AMCOM, ATTN:  AMSAM-SF-A (SOF COMPLIANCE OFFICER).
1.  PRIORITY CLASSIFICATION -
                             NOTE
IAW AR 95-1, PARAGRAPH 6-6A, MACOM COMMANDERS MAY AUTHORIZE 
TEMPORARY EXCEPTION FROM MESSAGE REQUIREMENTS.  EXCEPTION MAY 
ONLY OCCUR WHEN COMBAT OPERATIONS OR MATTER OF LIFE OR DEATH IN 
CIVIL DISASTERS OR OTHER EMERGENCIES ARE SO URGENT THAT THEY 
OVERRIDE THE CONSEQUENCES OF CONTINUED AIRCRAFT OPERATION.
    A.  AIRCRAFT IN USE - UPON RECEIPT OF THIS MESSAGE, MAKE THE 
FOLLOWING ENTRIES ON THE DA FORM 2408-13-1.  COMMANDERS WHO ARE 
UNABLE TO COMPLY WITH THE REQUIREMENTS OF THIS MESSAGE WITHIN THE 
TIME FRAME SPECIFIED WILL UPGRADE THE AFFECTED AIRCRAFT STATUS 
SYMBOL TO A RED //X//.
        (1)  FOR ALL H-47 - ENTER A RED HORIZONTAL DASH //-// 
STATUS SYMBOL WITH THE FOLLOWING STATEMENT: "INSPECT TIE BAR 
ASSEMBLIES IAW CH-47-02-05 (TB 1-1520-240-20-146) NLT 27 MAR 02."  
        (2)  CLEAR ENTRIES REQUIRED IAW CH-47-02-03, PARA 1A(1) 
AND/OR 8A(1)(B) FROM THE DA FORM 2408-13-1.  
    B.  AIRCRAFT IN MAINTENANCE FACILITY - 
        (1) AIRCRAFT IN AVUM, AVIM OR DEPOT - SAME AS PARA 1A.
        (2) AIRCRAFT AT CONTRACTOR FACILITY - BOEING WILL INSPECT 
DD 250 AIRCRAFT PRIOR TO THOSE AIRCRAFT DEPARTING FOR FERRY TO 
FINAL DESTINATION.
    C.  AIRCRAFT IN TRANSIT - SAME AS PARA 1A.
    D.  MAINTENANCE TRAINERS (CATEGORY A AND B) - COMPLY NLT 25 
JAN 04.
    E.  COMPONENT/PARTS IN STOCK AT ALL LEVELS (DEPOT AND OTHERS) 
INCLUDING WAR RESERVES - UPON RECEIPT OF THIS MESSAGE, DEPOT AND 
MATERIEL ACTIVITY COMMANDERS WILL ENSURE THE MATERIEL CONDITION 
TAGS OF ALL ITEMS IN ALL CONDITION CODES LISTED IN PARAGRAPH 6 
ARE ANNOTATED TO READ: "CH-47-02-05 (TB 1-1520-240-20-146), 
INSPECTION OF TIE BAR ASSEMBLIES NOT COMPLIED WITH."  
        (1) WHOLESALE STOCK - N/A.
        (2) RETAIL STOCK - UPON RECEIPT OF THIS MESSAGE, 
COMMANDERS AND FACILITY MANAGERS MAINTAINING RETAIL STOCK AT 
INSTALLATION LEVEL AND BELOW SHALL CONTACT THE SUPPORTED AVIATION 
UNIT TO PERFORM THE PROCEDURES REQUIRED IAW PARAGRAPHS 8 AND 9 ON 
SUSPECT MATERIEL.  DISPOSE OF DISCREPANT MATERIEL IAW PARA 10.  
REPORT COMPLIANCE WITH THIS MESSAGE IAW PARA 14C(2) NLT 3 APR 02. 
    F.  COMPONENTS/PARTS IN WORK (DEPOT LEVEL AND OTHERS) - DEPOT 
AND OTHER MAINTENANCE ACTIVITY COMMANDERS WILL ENSURE ITEMS 
LISTED IN PARAGRAPH 6 ARE NOT ISSUED UNTIL THEY ARE IN COMPLIANCE 
WITH THIS MESSAGE.
2.  TASK/INSPECTION SUSPENSE DATE -
    A.  COMPLETE THE PROCEDURES IAW PARAGRAPH 8A NLT 27 MAR 02.  
    B.  COMPLETE THE INSPECTION IAW PARAGRAPH 8B AT THE NEXT 
ROTOR HEAD REMOVAL, BUT NLT THE NEXT PHASE INSPECTION OR 25 JAN 04, 
WHICHEVER OCCURS FIRST.
3.  TAMMS REPORTING COMPLIANCE SUSPENSE DATE - REPORT COMPLIANCE 
IAW PARA 14A(1) NLT 27 MAR 02.  
4.  SUMMARY OF PROBLEM - 
    A.  CH-47-02-03 WAS ISSUED ON 24 JANUARY 2002 REQUIRING 
INSPECTION OF THE TIE BAR ASSEMBLY AND ROTOR TACHOMETER.  WITH 
REGARD TO THE TIE BAR INSPECTIONS, THE INTENT OF THE MESSAGE WAS 
TO INSPECT FOR CRACKED PLATES AND DEFORMATION OF WASHERS ONLY.  
SCORES, SCRATCHES, BUCKLING/SEPARATION OF PLATES, AND OTHER MINOR 
INSTALLATION DAMAGE ARE NOT GROUNDS FOR FAILING THIS SPECIAL 
INSPECTION.  THE 1200 HOUR OPERATING TIME SPECIAL INSPECTION WILL 
STILL BE REQUIRED.  AT THE TIME THE 1200 HOUR OPERATING TIME 
SPECIAL INSPECTION IS DUE, ALL TIE BARS THAT FAIL THE INSPECTION 
CRITERIA OF TM 55-1520-240-23, TASK 5-23.1.1 (H-47D/F), OR TM 
1-1520-252-23, TASK 5-31 (MH-47E), WILL REQUIRE REPLACEMENT.
    B.  MANPOWER/DOWNTIME AND FUNDING IMPACTS - SEE PARA 12.
    C.  THE PURPOSE OF THIS MESSAGE IS TO - 
        (1)  REVISE THE TIE BAR INSPECTION PROCEDURES REQUIRED BY 
CH-47-02-03 (TB 1-1520-240-20-141).  
        (2)  ADD ADDITIONAL MANUAL CHANGES FOR TIE BAR ASSEMBLY 
INSPECTION CRITERIA TO PARAGRAPH 12E.  
5.  END ITEMS TO BE INSPECTED - ALL H-47 SERIES AIRCRAFT.
6.  ASSEMBLY COMPONENTS TO BE INSPECTED - 
       NOMENCLATURE              PART NO.           NSN 
    ROTOR HEAD ASSEMBLY       145R2003-ALL          ALL 
    ROTOR HEAD ASSEMBLY       145R2004-ALL          ALL 
    TIE BAR ASSEMBLY          114R2155-1      1615-00-740-6480 
7.  PARTS TO BE INSPECTED - N/A.
8.  INSPECTION PROCEDURES - 
                             NOTE
            DUE TO THE POSSIBILITY OF HANDLING DAMAGE, TIE BAR 
            ASSEMBLIES THAT WERE PREVIOUSLY REJECTED DURING 
            COMPLIANCE WITH SOF CH-47-02-03 DUE TO FAILING THE 
            INSPECTION REQUIREMENTS OF TM 55-1520-240-23, TASK 
            5-23.1.1 (H-47D/F), OR TM 1-1520-252-23, TASK 5-31 
            (MH-47E), FOR OTHER THAN CRACKS AND/OR DEFORMED 
            WASHERS, SHALL BE DISPOSED OF IAW PARA 10D.
                             NOTE
            READ AND COMPLETE ALL PARAGRAPH 8 INSPECTION 
            PROCEDURES FOR EACH PART PRIOR TO PROCEEDING 
            TO THE CORRECTION PROCEDURES IN PARAGRAPH 9.
    A.  UTILIZING THE INSPECTION RESULTS OF CH-47-02-03 
(TB 1-1520-240-20-141), PARA 8A, PROCEED AS FOLLOWS - 
        (1)  IF TSN IS LESS THAN 4800 HOURS - 
             (A)  CHANGE THE ROTOR HEAD DA FORM 2408-16 TO 
INDICATE A NEW RETIREMENT LIFE FOR THE TIE BAR ASSEMBLY OF 4800 
HRS TSN.
             (B)  CLEAR THE RED HORIZONTAL DASH //-// ENTRY 
REQUIRED IAW PARA 1A(1) OF THIS MESSAGE AND ENTER A NEW RED 
HORIZONTAL DASH //-// STATUS SYMBOL WITH THE FOLLOWING STATEMENT: 
"INSPECT ALL TIE BAR ASSEMBLIES IAW PARA 8B, CH-47-02-05 (TB 1-
1520-240-20-146) AT THE NEXT ROTOR HEAD REMOVAL, BUT NLT THE 
NEXT PHASE INSPECTION OR 25 JAN 04."
                             NOTE
            ROTOR HEADS WHICH HAVE ZERO HOURS TIME SINCE 
            OVERHAUL (TSO) OR ZERO HOURS TIME SINCE NEW (TSN) 
            DO NOT REQUIRE INSPECTION OF THE TIE BAR 
            ASSEMBLIES IAW PARA 8B.  
        (2)  IF TSN IS EQUAL TO OR GREATER THAN 4800 HOURS, 
CORRECT IAW PARA 9.
                             NOTE
            AIRCRAFT THAT WERE INSPECTED IAW CH-47-02-03 
            (TB 1-1520-240-20-141) DO NOT REQUIRE 
            RE-INSPECTION IAW PARA 8B.  
    B.  AT THE NEXT ROTOR HEAD REMOVAL, BUT NLT THE NEXT PHASE 
INSPECTION OR (25 JAN 04), WHICHEVER OCCURS FIRST, INSPECT THE 
TIE BAR ASSEMBLIES AS FOLLOWS - 
        (1)  REMOVE TIE BAR ASSEMBLIES IAW TM 55-1520-240-23, TASK 
5-23.1 (H-47D/F), OR TM 1-1520-252-23, TASK 5-30 (MH-47E).
                             NOTE
            THE PROCEDURE IN PARA 8B(2) IS ONLY FOR THE INSPECTION 
            OF TIE BAR ASSEMBLIES FOR CRACKED PLATES AND DEFORMED 
            OR CRACKED WASHERS.  THE TIE BAR ASSEMBLY WILL BE 
            INSPECTED PER TM 55-1520-240-23 (H-47D/F), OR TM 
            1-1520-252-23 (MH-47E), AT THE NEXT HORIZONTAL HINGE 
            PIN ROTATION.  THE SPECIAL INSPECTION REQUIRED BY THIS 
            SAFETY OF FLIGHT DOES NOT ZERO THE 1200 HOUR OPERATING 
            TIME SPECIAL INSPECTION REQUIRED IN TM 55-1520-240-23, 
            TASK 1-92 (H-47D/F), REF NO. 21, 0R TM 1-1520-252-23, 
            TASK 1-100 (MH-47E), REF NO. 17.
        (2)  INSPECT TIE BAR ASSEMBLIES AS FOLLOWS - 
               (A)  VISUALLY INSPECT TIE BAR PLATES FOR CRACKS 
USING 10X MAGNIFICATION.  NO CRACKS ALLOWED.
                             NOTE
            SURFACE IRREGULARITIES (I.E. SCRATCHES AND 
            MANUFACTURING DEFECTS) FOUND WHILE USING THE 
            10X MAGNIFICATION ARE NOT GROUNDS FOR REJECTION.
               (B)  INSPECT THE FOUR TIE BAR SLOTS USING A 
BORESCOPE WITH A RIGID RIGHT ANGLE PROBE.  INSERT THE BORESCOPE 
PROBE IN EACH SLOT AND EXAMINE THE PLATES FOR CRACKS ALONG THE 
FULL DEPTH AND SPAN OF THE SLOT.  RECOMMEND THE PROBE NOT EXCEED 
0.110 INCH DIAMETER.  IF A SUITABLE BORESCOPE AND PROBE ARE NOT 
AVAILABLE, VISUALLY INSPECT EACH SLOT USING A LIGHT SOURCE.
                             NOTE
            CRACKS WILL APPEAR PERPENDICULAR TO THE PLATE 
            SURFACES AND SHOULD NOT BE CONFUSED WITH 
            HORIZONTAL SCRATCHES OR TOOL MARKS.
               (C)  INSPECT WASHERS FOR DEFORMATION (DISHING) AND 
CRACKS.  A DISHED WASHER WILL HAVE A GAP BETWEEN IT AND THE 
ADJACENT PLATE.  THE MAXIMUM SEPARATION BETWEEN THE WASHER AND THE 
ADJACENT PLATE IS 0.015 INCH.  NO CRACKS ALLOWED.
        (3)  IF A TIE BAR ASSEMBLY FAILS AN INSPECTION IAW PARA 
8B, CORRECT IAW PARA 9.
        (4)  IF NO DAMAGE IS FOUND - 
             (1)  REINSTALL THE ROTARY WING HEAD TIE BAR 
ASSEMBLIES IAW TM 55-1520-240-23, TASK 5-23.2 (H-47D/F) OR TM 
1-1520-252-23, TASK 5-32 (MH-47E).
             (2)  CLEAR THE RED HORIZONTAL DASH //-// ENTRY.
9.  CORRECTION PROCEDURES - IF THE TSN IS EQUAL TO OR MORE THAN 
4800 HRS, OR IF A TIE BAR ASSEMBLY FAILS AN INSPECTION IAW PARA 
8B, PROCEED AS FOLLOWS - 
    A.  CHANGE THE ROTOR HEAD DA FORM 2408-16 TO INDICATE A 
NEW RETIREMENT LIFE FOR TIE BAR ASSEMBLY OF 4800 HRS TSN.
    B.  CLEAR THE RED HORIZONTAL DASH //-// ENTRY AND ENTER 
A RED //X// STATUS SYMBOL WITH THE FOLLOWING STATEMENT: "REPLACE 
THE ROTARY WING HEAD TIE BAR ASSEMBLIES IAW CH-47-02-05 (TB 1-
1520-240-20-146)."
    C.  SUBMIT A CATEGORY I DEFICIENCY REPORT ON ANY TIE BAR 
ASSEMBLY THAT HAS FAILED THE INSPECTION REQUIRED IAW PARA 8B DUE 
TO CRACKS.
    D.  IF YOU HAVE TIE BARS ON HAND WHICH PREVIOUSLY FAILED THE 
INSPECTION IAW CH-47-02-03 FOR OTHER THAN CRACKS AND/OR DEFORMED 
WASHERS, REFER TO PARAGRAPH 10D FOR DISPOSITION INSTRUCTIONS. 
    E.  IF TSN IS EQUAL TO OR MORE THAN 4800 HOURS, CONTACT 
THE TECH POC IN PARA 16A FOR DISPOSITION INSTRUCTIONS.
                             NOTE
            ENSURE THAT REPLACEMENT TIE BAR ASSEMBLIES 
            ARE INSPECTED AND IN COMPLIANCE WITH THIS 
            SOF PRIOR TO INSTALLATION.
    F.  REPLACE THE ROTARY WING HEAD TIE BAR ASSEMBLIES IAW 
TM 55-1520-240-23, TASK 5-23.2 (ALL H-47D/F) OR TM 1-1520-252-23, 
TASK 5-32 (MH-47E).
    G.  CLEAR THE RED //X// ENTRY FROM PARA 9B.
10.  SUPPLY/PARTS AND DISPOSITION -
     A.  PARTS REQUIRED - ITEMS CITED IN PARAGRAPH 6 MAY BE 
REQUIRED TO REPLACE DEFECTIVE ITEMS.
     B.  REQUISITIONING INSTRUCTIONS - REQUISITION REPLACEMENT 
PARTS USING NORMAL SUPPLY PROCEDURES.  ALL REQUISITIONS SHALL USE 
PROJECT CODE (CC 57-59) "X13" (X-RAY-ONE-THREE).
                              NOTE
            PROJECT CODE "X13" IS REQUIRED TO TRACK
            AND ESTABLISH A DATA BASE OF STOCK FUND
            EXPENDITURES INCURRED BY THE FIELD AS A
            RESULT OF MESSAGE ACTIONS.
     C.  BULK AND CONSUMABLE MATERIALS - THE FOLLOWING MATERIALS 
WILL BE REQUIRED - 
    NOMENCLATURE          PART NO.           NSN
   BOLT                   114R2162-1   5306-00-926-5684 
   NUT, SELF-LOCK         MS21083N4    5310-00-903-8282 
   BOLT                   AN4H30A      5306-00-182-2022 
   SEAL                   114R2142-3   5330-00-913-0933 
   SEAL                   114RS215-1   5330-00-248-5142 
     D.  DISPOSITION -
         (1)  IF CRACKS ARE FOUND IN THE TIE BAR ASSEMBLY, 
DISPOSITION INSTRUCTIONS WILL BE PROVIDED UPON RECEIPT OF THE 
CATEGORY I DEFICIENCY REPORT.
         (2)  IF TIE BAR FAILED INSPECTION DUE TO DEFORMED WASHER, 
DISPOSE OF USING NORMAL SUPPLY PROCEDURES.
         (3)  TIE BARS ON HAND WHICH PREVIOUSLY FAILED THE 
INSPECTION IAW CH-47-02-03 FOR OTHER THAN CRACKS AND/OR DEFORMED 
WASHERS SHALL BE SHIPPED TO - 
               SR CORPUS CHRISTI ARMY DEPOT SRA 
               BUILDING 1846 
               CORPUS CHRISTI, TX  78419-6030 
         (4)  IF TIE BAR ASSEMBLY TSN IS EQUAL TO OR MORE THAN 
4800 HOURS, CONTACT THE TECH POC IN PARA 16A FOR DISPOSITION 
INSTRUCTIONS.
     E.  DISPOSITION OF HAZARDOUS MATERIAL - N/A.
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)  TIME TO COMPLETE RECORDS CHECK - TOTAL OF 0.5 HOURS 
USING 1 PERSON.
         (2)  TIME TO COMPLETE INSPECTION OF THE TIE BAR ASSY. -
              (A)  TOTAL OF 124 MAN-HOURS USING 8 PERSONS.
              (B)  TOTAL OF 20.0 HOURS DOWNTIME FOR ONE END ITEM.  
DOWNTIME INCLUDES TIME REQUIRED MAINTENANCE TEST FLIGHT.
     C.  ESTIMATED COST IMPACT TO THE FIELD -
    NOMENCLATURE      PART NO./NSN   QTY    COST EA.      TOTAL $
    TIE BAR ASSEMBLY  114R2155-1      6    $5675.15    $34,050.90
                  1615-00-740-6480
    TIE BAR PIN       114R2168-3      6       33.34        200.04
                  1615-00-740-6477
    TIE BAR PIN       114R2168-4      6       63.05        378.30
                  1615-01-115-3619
                             TOTAL COST PER AIRCRAFT = $34,629.24
     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 - THE FOLLOWING PUBLICATIONS SHALL BE CHANGED TO 
REFLECT THIS MESSAGE.  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 55-1520-240-23, AVIATION UNIT AND AVIATION 
INTERMEDIATE MAINTENANCE MANUAL, CH-47D HELICOPTER, TASK 5-23.1.1 - 
              (A)  CHANGE PARA 2.G. TO READ AS FOLLOWS - INSPECT 
WASHERS FOR DEFORMATION (DISHING) AND CRACKS.  A DISHED WASHER 
WILL HAVE A GAP BETWEEN IT AND THE ADJACENT PLATE.  THE MAXIMUM 
SEPARATION BETWEEN THE WASHER AND THE ADJACENT PLATE IS 0.015 
INCH.  NO CRACKS ALLOWED." 
              (B)  CHANGE TITLE OF TASK 5-23.1.1 TO READ AS 
FOLLOWS - "1200 HOUR TIE BAR AND PIN ASSEMBLIES INSPECTION".  
         (2)  TM 55-1520-240-23, AVIATION UNIT AND AVIATION 
INTERMEDIATE MAINTENANCE MANUAL, CH-47D HELICOPTER, TASK 5-23.2 - 
ADD THE FOLLOWING TO THE "INITIAL SETUP" SECTION TO READ AS 
FOLLOWS:  "EQUIPMENT CONDITION: TIE BAR INSPECTED IAW TASK 
5-23.1.2"
         (3)  TM 1-1520-252-23, AVIATION UNIT AND AVIATION 
INTERMEDIATE MAINTENANCE MANUAL, MH-47E HELICOPTER, TASK 5-31 - 
              (A)  CHANGE PARA 2.F. TO READ AS FOLLOWS- -"INSPECT 
WASHERS FOR DEFORMATION (DISHING) AND CRACKS.  A DISHED WASHER 
WILL HAVE A GAP BETWEEN IT AND THE ADJACENT PLATE.  THE MAXIMUM 
SEPARATION BETWEEN THE WASHER AND THE ADJACENT PLATE IS 0.015 
INCH.  NO CRACKS ALLOWED."
              (B)  CHANGE TITLE OF TASK 5-31 TO READ AS FOLLOWS - 
"1200 HOUR TIE BAR AND PIN ASSEMBLIES INSPECTION".
         (4)  TM 1-1520-252-23, AVIATION UNIT AND AVIATION 
INTERMEDIATE MAINTENANCE MANUAL, MH-47E HELICOPTER, TASK 5-32 - 
ADD THE FOLLOWING TO THE "INITIAL SETUP" SECTION UNDER 'EQUIPMENT 
CONDITION' TO READ AS FOLLOWS: "TIE BAR INSPECTED IAW TASK 5-31.1"
         (5)  TM 55-1520-240-23, TASK 5-23.1.2 (CH-47D) AND TM 
1-1520-252-23, TASK 5-31.1 (MH-47E) - INSERT A NEW TASK, TITLE 
SHOULD READ: "INSPECT TIE BAR ASSEMBLY", PROCEDURES TO READ AS 
FOLLOW - 
              (1)  VISUALLY INSPECT TIE BAR PLATES FOR CRACKS 
USING 10X MAGNIFICATION.  NO CRACKS ALLOWED. 
              (2)  INSPECT THE FOUR TIE BAR SLOTS USING A 
BORESCOPE WITH A RIGID RIGHT ANGLE PROBE.  INSERT THE BORESCOPE 
PROBE IN EACH SLOT AND EXAMINE THE PLATES FOR CRACKS ALONG THE 
FULL DEPTH AND SPAN OF THE SLOT.  RECOMMEND THE PROBE NOT EXCEED 
0.110 INCH DIAMETER.  IF A SUITABLE BORESCOPE AND PROBE ARE NOT 
AVAILABLE, VISUALLY INSPECT EACH SLOT USING A LIGHT SOURCE.
                             NOTE
            CRACKS WILL APPEAR PERPENDICULAR TO THE PLATE 
            SURFACES AND SHOULD NOT BE CONFUSED WITH 
            HORIZONTAL SCRATCHES OR TOOL MARKS.
              (3)  INSPECT WASHERS FOR DEFORMATION (DISHING) AND 
CRACKS.  A DISHED WASHER WILL HAVE A GAP BETWEEN IT AND THE 
ADJACENT PLATE.  THE MAXIMUM SEPARATION BETWEEN THE WASHER AND THE 
ADJACENT PLATE IS 0.015 INCH.  NO CRACKS ALLOWED."
13.  REFERENCES - 
     A.  DA PAM 738-751, 15 MAR 99.
     B.  TM 55-1520-240-23, AVIATION UNIT AND AVIATION 
INTERMEDIATE MAINTENANCE MANUAL, CH-47D HELICOPTER.
     C.  TM 1-1520-252-23, AVIATION UNIT AND AVIATION INTERMEDIATE 
MAINTENANCE MANUAL, MH-47E HELICOPTER.
14.  RECORDING AND REPORTING REQUIREMENTS -
     A.  AIRCRAFT -
         (1)  TAMMS REPORTING COMPLIANCE SUSPENSE - UPON ENTERING 
REQUIREMENTS OF THIS MESSAGE ON DA FORM 2408-13-1 FOR ALL 
EFFECTED AIRCRAFT, COMMANDERS WILL FORWARD A PRIORITY MESSAGE, 
FAX OR EMAIL TO CDR, AMCOM, ATTN:  AMSAM-SF-A (SOF COMPLIANCE 
OFFICER), REDSTONE ARSENAL, AL 35898-5000, IAW AR 95-1, NLT DATE 
SPECIFIED IN PARAGRAPH 3.  FAX NUMBER IS DSN 897-2111 OR (256) 
313-2111.  EMAIL ADDRESS IS "SAFEADM@REDSTONE.ARMY.MIL".  THE 
REPORT WILL CITE THIS MESSAGE AND TB NUMBER, DATE OF ENTRY IN DA 
FORM 2408-13-1, THE AIRCRAFT MISSION DESIGN SERIES AND SERIAL 
NUMBERS OF AIRCRAFT IN NUMERICAL ORDER.
         (2)  TASK/INSPECTION REPORTING SUSPENSE - N/A.
     B.  WHOLESALE SPARE PARTS/ASSEMBLIES - N/A.
     C.  RETAIL SPARE PARTS/ASSEMBLIES -
         (1)  REPORTING MESSAGE RECEIPT - N/A.
         (2)  TASK/INSPECTION REPORTING SUSPENSE - COMMANDERS AND 
FACILITY MANAGERS WILL REPORT INSPECTION RESULTS TO THE 
LOGISTICAL POINT OF CONTACT IN PARA 16B NLT DATE SPECIFIED IN 
PARAGRAPH 1E(2).  REPORT THE QUANTITY INSPECTED BY CONDITION CODE 
AND THE RESULTING CONDITION CODE.  REPORT BY EMAIL OR FAX AND 
PROVIDE LOCAL POINT OF CONTACT.
     D.  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 2408-5-1, EQUIPMENT MODIFICATION RECORD. 
(TIE BAR ASSEMBLY).
         (2)  DA FORM 2408-13, AIRCRAFT STATUS INFORMATION 
RECORD.
         (3)  DA FORM 2408-13-1, AIRCRAFT INSPECTION AND 
MAINTENANCE RECORD.
         (4)  DA FORM 2408-16, AIRCRAFT COMPONENT HISTORICAL 
RECORD.
         (5)  DA FORM 2410, COMPONENT REMOVAL AND REPAIR/OVERHAUL 
RECORD (ONLY IF ROTOR HEAD OR TIE BAR ASSEMBLIES ARE 
REMOVED/REPLACED).
         (6)  DD FORM 1574/DD FORM 1574-1, SERVICEABLE TAG/LABEL - 
MATERIEL (COLOR YELLOW).  ANNOTATE REMARKS BLOCK WITH "INSPECTED 
SERVICEABLE IAW CH-47-02-05 (TB 1-1520-240-20-146)."
         (7)  DD FORM 1577-2/DD FORM 1577-3, UNSERVICEABLE 
(REPARABLE) TAG/LABEL - MATERIEL (COLOR GREEN).  ANNOTATE REMARKS 
BLOCK WITH UNSERVICEABLE IAW CH-47-02-05 (TB 1-1520-240-20-146)."
15.  WEIGHT AND BALANCE - N/A.
16.  POINTS OF CONTACT -
     A.  TECHNICAL POINT OF CONTACT FOR THIS MESSAGE IS MR. STEVE 
PROSISE, AMSAM-RD-AE-I-P-C, DSN 897-2350 EXTENSION 9851 OR (256) 
705-9851.  EMAIL IS "STEVE.PROSISE@RDEC.REDSTONE.ARMY.MIL".
     B.  LOGISTICAL POC IS MR. BILL OLSON, SFAE-AV-CH-L, DSN 897-
3379 OR (256) 313-3379, FAX IS EXT 4348.  EMAIL IS 
"WILLIAM.OLSON@PEOAVN.REDSTONE.ARMY.MIL".
     C.  WHOLESALE MATERIEL POC (SPARES) IS MIGUEL RODRIGUEZ, 
AMSAM-MMC-AV-CA, DSN 788-6747 OR (256) 842-6747, FAX IS DSN 897-
1106.  EMAIL IS "MIGUEL.RODRIGUEZ@REDSTONE.ARMY.MIL".
     D.  FORMS AND RECORDS POC FOR THIS MESSAGE IS MS. ANN 
WALDECK, AMSAM-MMC-MA-NM, DSN 746-5564 OR (256) 876-5564, FAX IS 
DSN 746-4904.  EMAIL IS ANN.WALDECK@REDSTONE.ARMY.MIL".
     E.  SAFETY POINTS OF CONTACT ARE -
         (1)  PRIMARY - MR. RANDALL RUSHING (SAIC), AMSAM-SF-A, 
DSN 897-2092 OR (256) 313-2092, FAX IS DSN 895-2111 OR (256) 313-
2111.  EMAIL IS "RANDALL.RUSHING@REDSTONE.ARMY.MIL".
         (2)  ALTERNATE - MR. RUSS PEUSCH, AMSAM-SF-A, DSN 788-
8632 OR (256) 842-8632, FAX IS DSN 897-2111 OR (256) 313-2111.  
EMAIL IS "RUSSELL.PEUSCH@REDSTONE.ARMY.MIL".
     F.  FOREIGN MILITARY SALES RECIPIENTS REQUIRING CLARIFICATION 
OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT -MR. RONNIE W. 
SAMMONS, AMSAM-SA-CS-NF, DSN 897-6856 OR (256) 313-6856.  FAX 
IS DSN 897-6630 OR (256) 313-6630.  EMAIL IS 
"RONNIE.SAMMONS@REDSTONE.ARMY.MIL".
     G.  AFTER HOURS CONTACT THE AMCOM OPERATIONS CENTER (AOC) DSN 
897-2066/7 OR (256) 313-2066/7.