Safety of Flight CH-47-02-02

 

          Inspection of the Rotary Wing Tie Bar

 

         

 

         

UNCLASSIFIED

 

MSG DTG 242133Z JAN 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 AND ROTOR 

TACHOMETER, CH-47-02-02 (TB 1-1520-240-20-141).

                             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-47-02-02 (TB 1-1520-

240-20-141) PRIOR TO THE NEXT FLIGHT."

        (2)  FOR ALL H-47 - ENTER A CIRCLED RED //X// STATUS SYMBOL WITH THE 

FOLLOWING STATEMENT: "AIRCRAFT RESTRICTED TO 111 PERCENT TRANSIENT ROTOR SPEED 

IAW CH-47-02-02 (TB 1-1520-240-20-141)."

        (3)  FOR H-47D AND H-47F ONLY - ENTER A RED DIAGONAL \\/\\ STATUS SYMBOL 

WITH THE FOLLOWING STATEMENT: "REWORK ALL ROTOR TACHOMETERS IAW CH-47-02-02 (TB 

1-1520-240-20-141) NLT 26 FEBRUARY 2002."

    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 -

        (1)  SURFACE/AIR SHIPMENT - SAME AS PARA 1A.

        (2)  FERRY STATUS - SAME AS PARA 1A.

    D.  MAINTENANCE TRAINERS (CATEGORY A AND B) - COMPLY NLT 25 JANUARY 2004.

    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 PARAGRAPHS 6 AND 7 ARE ANNOTATED TO READ: " CH-47-02-02 (TB 1-1520-

240-20-141), INSPECTION OF TIE BAR ASSEMBLIES AND ROTOR TACHOMETERS 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 PARAGRAPH 14C(2) NLT 8 FEBRUARY 2002.

    F.  COMPONENTS/PARTS IN WORK (DEPOT LEVEL AND OTHERS) - DEPOT AND OTHER 

MAINTENANCE ACTIVITY COMMANDERS WILL ENSURE ITEMS LISTED IN PARAGRAPHS 6 AND 7 

ARE NOT ISSUED UNTIL THEY ARE IN COMPLIANCE WITH THIS MESSAGE.

2.  TASK/INSPECTION SUSPENSE DATE -

    A.  COMPLETE THE INSPECTION IAW PARAGRAPH 8A PRIOR TO THE NEXT FLIGHT.

    B.  COMPLETE THE INSPECTION IAW PARAGRAPH 8B AT THE NEXT ROTOR HEAD REMOVAL, 

BUT NLT THAN THE NEXT PHASE INSPECTION OR 25 JANUARY 2004, WHICHEVER OCCURS 

FIRST.

    C.  COMPLETE THE INSPECTION FOR ALL H-47D/F AIRCRAFT IAW PARA 8C NLT 25 

FEBRUARY 2002.

3.  TAMMS REPORTING COMPLIANCE SUSPENSE DATE - REPORT COMPLIANCE IAW PARA 14A(1) 

NLT 31 JANUARY 2002.

4.  SUMMARY OF PROBLEM -

    A.  HISTORY -

        (1)  TIE BAR PLATE FAILURE - REPORTS FROM THE FIELD ON TIE BAR 

ASSEMBLIES INDICATE THAT TIE BAR PLATE CRACKS HAVE OCCURRED MUCH EARLIER THAN 

THE RETIREMENT LIFE OF 8693 HOURS.  EVEN THOUGH THE TIE BAR ASSEMBLY IS 

CURRENTLY INSPECTED AT 1200 HOURS AND AT THE 2400 HOUR OVERHAUL, IT IS POSSIBLE 

THAT SOME FIELDED TIE BARS MAY HAVE TIE BAR PLATES WHICH HAVE CRACKED.

        (2)  TIE BAR OVER SPEED DAMAGE - TESTING HAS SHOWN THAT INITIAL 

DEFORMATION OF THE ROTARY WING HEAD TIE BAR ASSEMBLY MAY OCCUR AT A POINT JUST 

ABOVE 111 PERCENT ROTOR RPM.  CURRENTLY, THE 145ES008 ROTOR TACHOMETERS 

(ALL H-47D/F) AND MULTI FUNCTION DISPLAYS (MFD) (MH-47E) INDICATE 115 PERCENT 

RPM AS THE MAXIMUM TRANSIENT ROTOR SPEED LIMIT.  BECAUSE OF THIS, SOME TIE BAR 

ASSEMBLIES MAY HAVE ALREADY BEEN DAMAGED DUE TO EXCEEDING 111 PERCENT RPM.

    B.  MANPOWER/DOWNTIME AND FUNDING IMPACTS - SEE PARA 12.

    C.  THE PURPOSE OF THIS MESSAGE IS TO -

        (1)  TIE BAR ASSEMBLY -

             (A)  REDUCE THE RETIREMENT LIFE OF THE ASSEMBLY TO 4800 HOURS TIME 

SINCE NEW (TSN).

             (B)  REPLACE ALL ASSEMBLIES WITH MORE THAN 4800 HOURS TSN.

             (C)  INSPECT ALL ASSEMBLIES WITH LESS THAN 4800 HOURS TSN FOR 

CRACKS.

        (2)  MAXIMUM TRANSIENT ROTOR SPEED LIMIT -

             (A)  REQUIRE REWORK OF ALL 145ES008 ROTOR TACHOMETERS (ALL H-47D/F) 

AND UPDATE SOFTWARE (MH-47E) TO INDICATE THE MAX TRANSIENT ROTOR SPEED OF 111 

PERCENT RPM.

             (B)  CHANGE THE MAX TRANSIENT ROTOR SPEED TO BE 111 PERCENT RPM IN 

THE OPERATOR'S MANUALS.

             (C)  ESTABLISH A CONDITIONAL INSPECTION OF THE TIE BAR ASSEMBLY IF 

111 PERCENT ROTOR SPEED IS EXCEEDED.

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 -

       NOMENCLATURE             PART NO.           NSN

    TACHOMETER INDICATOR      145ES008-2      6680-01-127-2481

8.  INSPECTION PROCEDURES -

                             NOTE

            READ AND COMPLETE ALL PARAGRAPH 8 INSPECTION

            PROCEDURES FOR EACH PART PRIOR TO PROCEEDING

            TO THE CORRECTION PROCEDURES IN PARAGRAPH 9.

    A.  PRIOR TO THE NEXT FLIGHT, INSPECT THE ROTOR HEAD DA FORM 2408-16 TO 

DETERMINE THE TSN OF ALL TIE BAR ASSEMBLIES.

        (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-

47-02-02 (TB 1-1520-240-20-141) AT THE NEXT ROTOR HEAD REMOVAL, BUT NLT THAN THE 

NEXT PHASE INSPECTION OR 25 JANUARY 2002."

        (2)  IF TSN IS EQUAL TO OR GREATER THAN 4800 HOURS, CORRECT IAW PARA 9A.

                             NOTE

            ROTOR HEADS RECEIVED FROM SUPPLY AFTER THE

            MSG DTG WHICH HAVE ZERO HOURS TIME SINCE

            OVERHAUL (TSO) DO NOT REQUIRE INSPECTION

            OF THE TIE BAR ASSEMBLIES IAW PARA 8B.

    B.  AT THE NEXT ROTOR HEAD REMOVAL, BUT NLT THAN THE NEXT PHASE INSPECTION 

OR 25 JANUARY 2002, 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 IAW CHANGE

            NUMBER 47 FOR THE H-47D/F, AND CHANGE

            NUMBER 17 FOR THE MH-47E.

        (2)  INSPECT TIE BAR ASSEMBLIES IAW TM 55-1520-240-23, TASK 5-23.1.1 

(H-47D/F), OR TM 1-1520-252-23, TASK 5-31 (MH-47E).

        (3)  INSPECT THE FOUR TIE BAR SLOTS AS FOLLOWS - USING A BORESCOPE WITH 

A 0.110 INCH DIAMETER BY 6 INCH LENGTH PROBE, INSERT THE BORESCOPE PROBE IN EACH 

SLOT.  EXAMINE THE SLOTS FOR CRACKS ALONG THE FULL DEPTH AND SPAN.

        (4)  IF A TIE BAR ASSEMBLY FAILS AN INSPECTION IAW PARA 8B, CORRECT IAW 

PARA 9A.

        (5)  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.

    C.  PRIOR TO 25 FEBRUARY 2002.  INSPECT THE AIRCRAFT ROTOR TACHOMETER -

        (1)  FOR THE 145ES008-2 ROTOR TACHOMETER (H-47D/F)  CORRECT IAW  

PARA 9B.

                             NOTE

            CURRENTLY ALL 145ES008-2 ROTOR TACHOMETERS

            ARE MARKED TO INDICATE THE MAXIMUM TRANSIENT

            ROTOR SPEED AT 115 PERCENT.  EVENTUALLY NEW

            ROTOR TACHOMETERS WILL BE AVAILABLE THAT WILL

            BE MARKED AT 111 PERCENT.

        (2)  FOR THE MULTI FUNCTION DISPLAY (MFD) SOFTWARE (MH-47E) - CORRECT 

IAW PARA 9C.

9.  CORRECTION PROCEDURES -

                             NOTE

            ENSURE THAT REPLACEMENT TIE BAR ASSEMBLIES

            ARE INSPECTED AND IN COMPLIANCE WITH THIS

            SOF PRIOR TO INSTALLATION.

    A.  IF THE TSN IS EQUAL TO OR MORE THAN 4800 HRS, OR IF A TIE BAR ASSEMBLY 

FAILS AN INSPECTION IAW PARA 8B -

        (1)  CHANGE THE ROTOR HEAD DA FORM 2408-16 TO INDICATE A NEW RETIREMENT 

LIFE FOR TIE BAR ASSEMBLY OF 4800 HRS TSN.

        (2)  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-47-02-02 (TB 1-1520-240-20-141)."

        (3)  SUBMIT A CATEGORY I DEFICIENCY REPORT ON ANY TIE BAR ASSEMBLY THAT 

HAS FAILED THE INSPECTION REQUIRED IAW PARA 8B DUE TO CRACKS.

        (4)  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).

        (5)  CLEAR THE RED //X// ENTRY.

    B.  FOR ALL H-47D AND H-47F HELICOPTERS - REWORK ALL ROTOR TACHOMETERS AS 

FOLLOWS -

        (1)  REMOVE ROTOR TACHOMETERS FROM THE AIRCRAFT IAW TM 55-1520-240-23, 

TASK 8-88.

        (2)  ON A SUITABLE WORKBENCH, CLEAN GLASS COVER WITH ISOPROPYL ALCOHOL, 

TT-I-735 (OR EQUIVALENT).

        (3)  APPLY A 3/16-INCH HIGH BY 1/16-INCH WIDE PIECE OF RED TAPE (NSN 

7510-00-550-7126 OR EQUIVALENT) AT THE 111 PERCENT RPM RANGE MARKING ON THE 

GLASS FACE OF EACH ROTOR TACHOMETER.

        (4)  PAINT A WHITE INDEX MARK NOT OVER 1/16 INCH WIDE ACROSS THE JOINT 

BETWEEN THE GLASS AND THE CASE AT THE BOTTOM OF THE CENTER (6 O'CLOCK) POSITION 

USING MIL-L-19537 WHITE LACQUER (OR EQUIVALENT).

        (5)  APPLY A COAT OF MIL-V-173 VARNISH (OR EQUIVALENT) OVER THE TAPE AND 

ALLOW TO DRY.

        (6) REINSTALL THE ROTOR TACHOMETERS IN THE AIRCRAFT IAW TM 55-1520-240-

23, TASK 8-89.

        (7)  AFTER COMPLETION OF THE MODIFICATION OF BOTH ROTOR TACHOMETERS, THE 

RED DIAGONAL \\/\\ AND CIRCLED RED //X// ENTRIES WILL BE CLEARED.

    C.  FOR ALL MH-47E HELICOPTERS -

        (1)  A SOFTWARE CHANGE WILL BE DEVELOPED TO INCORPORATE THE 111 PERCENT 

MAXIMUM TRANSIENT ROTOR SPEED LIMIT.

        (2)  AFTER INSTALLATION OF THE NEW AVIONICS SUITE, THE CIRCLED RED //X// 

ENTRIES WILL BE CLEARED.

10.  SUPPLY/PARTS AND DISPOSITION -

     A.  PARTS REQUIRED - ITEMS CITED IN PARAGRAPHS 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 -

         (1)  TAPE, PRESSURE SENSITIVE ADHESIVE, COLOR RED, P/N L-T-90, NSN 

7510-00-550-7126(OR EQUIVALENT).

         (2)  VARNISH, P/N MIL-V-173 (OR EQUIVALENT), NSN 8010-00-180-6343.

         (3)  LACQUER, WHITE, COLOR NO. 17925(OR EQUIVALENT), P/N

MIL-L-19537 (OR EQUIVALENT), NSN 8010-00-935-6608.

         (4)  ALCOHOL, ISOPROPYL, COMMERCIAL GRADE, P/N TT-I-735 (OR 

EQUIVALENT), NSN 6810-00-753-4993.

         (5)  BOLT, P/N 114R2162-1, NSN 5306-00-926-5684.

         (6)  NUT, SELF-LOCK, P/N MS21083N4, NSN 5310-00-903-8282.

         (7)  BOLT, P/N AN4H30A, NSN 5306-00-182-2022.

         (8)  SEAL, P/N 114R2142-3, NSN 5330-00-913-0933.

         (9)  SEAL, P/N 114RS215-1, NSN 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)  CONTACT THE LOG POC IN PARA 16B FOR DISPOSITION INSTRUCTION FOR 

ALL OTHER TIE BAR ASSEMBLIES THAT FAIL THE INSPECTIONS IAW PARA 8 OF THIS 

MESSAGE.

     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 MAINTENANCE.

     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.

         (3)  TIME FOR TACHOMETER REWORK -

              (A)  TOTAL OF 1 MAN-HOURS USING 1 PERSONS.

              (B)  TOTAL OF 1 HOURS DOWNTIME FOR ONE END ITEM.

     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 = $34,692.24

     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 55-1520-240-10, OPERATORS MANUAL FOR ARMY CH-47D HELICOPTER - 

CHANGE MAXIMUM TRANSIENT ROTOR SPEED LIMIT TO 111 PERCENT RPM.

         (2)  TM 55-1520-240-23, AVIATION UNIT AND AVIATION INTERMEDIATE 

MAINTENANCE MANUAL, CH-47D HELICOPTER -

              (A)  TASK 1-91, PAGE 1-284, CHANGE THE RETIREMENT SCHEDULE HOURS 

FOR THE FORWARD AND AFT TIE BAR ASSEMBLY, P/N 114R2155-1, TO BE 4800 HOURS TSN.

              (B)  ADD THE FOLLOWING CONDITIONAL INSPECTION TO TASK 1-92.

                   (1)  THE INSPECTION FREQUENCY SHALL READ - "WHEN ROTOR RPM 

EXCEEDS 111 PERCENT, BUT DOES NOT EXCEED 115 PERCENT RPM."

                   (2)  THE INSPECTION REQUIREMENT SHALL READ - "INSPECT THE 

ROTOR HEAD TIE BAR ASSEMBLIES PER TASK 5-23-1.1 AT THE NEXT ROTOR HEAD REMOVAL, 

BUT NLT COMPLETION OF NEXT PHASED MAINTENANCE".

              (C)  TASK 1-92, REFERENCE 55 - CHANGE "SPEED" TO READ "RPM".

              (D)  TASK 5-23.1.1, PAGE 5-94.2.1, ADD "BORESCOPE" TO TOOLS LIST.

              (E)  TASK 5-23.1.1, PAGE 5-94.2.1, ADD PARA 3 AS FOLLOWS - 

           "3.  USE A BORESCOPE WITH A RIGID RIGHT ANGLE PROBE TO

           INSPECT THE FOUR SLOTS IN THE TIE BAR ASSEMBLY AS

           FOLLOWS:

                                NOTE

                   RECOMMEND THE PROBE NOT EXCEED 0.110

                   INCH DIAMETER.

               A.  INSERT THE BORESCOPE PROBE IN EACH SLOT.

               EXAMINE THE SLOTS FOR CRACKS ALONG THE FULL

               DEPTH AND SPAN.

               B.  REJECT TIE BAR ASSEMBLY IF ANY CRACKS ARE

               DETECTED."

         (3)  TM 1-1520-252-10, OPERATOR'S MANUAL FOR ARMY MH-47E HELICOPTER - 

CHANGE MAXIMUM TRANSIENT ROTOR SPEED LIMIT TO 111 PERCENT RPM.

         (4)  TM 1-1520-252-23, AVIATION UNIT AND AVIATION INTERMEDIATE 

MAINTENANCE MANUAL, MH-47E HELICOPTER -

              (A)  TASK 1-99, PAGE 3, CHANGE THE RETIREMENT SCHEDULE HOURS FOR 

THE FORWARD AND AFT TIE BAR ASSEMBLY, P/N 114R2155-1, TO BE 4800 HOURS TSN.

              (B)  ADD THE FOLLOWING CONDITIONAL INSPECTION TO TASK 1-100.

                   (1)  THE INSPECTION FREQUENCY SHALL READ - "WHEN ROTOR RPM 

EXCEEDS 111 PERCENT, BUT DOES NOT EXCEED 115 PERCENT RPM."

                   (2)  THE INSPECTION REQUIREMENT SHALL READ - "INSPECT THE 

ROTOR HEAD TIE BAR ASSEMBLIES PER TASK 5-31 AT THE NEXT ROTOR HEAD REMOVAL, BUT 

NLT COMPLETION OF NEXT PHASED MAINTENANCE".

              (C)  TASK 1-100, REFERENCE 56 - CHANGE "SPEED" TO READ "RPM".

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 55-1520-240-10, OPERATOR'S MANUAL FOR ARMY CH-47D HELICOPTER.

     E.  TM 1-1520-252-23, AVIATION UNIT AND AVIATION INTERMEDIATE MAINTENANCE 

MANUAL, MH-47E HELICOPTER.

     F.  TM 1-1520-252-10, OPERATOR'S MANUAL FOR ARMY 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 2408-15, HISTORICAL RECORD FOR AIRCRAFT (TO RECORD OF 

ROTOR TACHOMETER PORTION OF MESSAGE).

         (5)  DA FORM 2408-16, AIRCRAFT COMPONENT HISTORICAL RECORD.

         (6)  DA FORM 2410, COMPONENT REMOVAL AND REPAIR/OVERHAUL RECORD (ONLY 

IF ROTOR HEAD OR TIE BAR ASSEMBLIES ARE REMOVED/REPLACED).

         (7)  DD FORM 1574/DD FORM 1574-1, SERVICEABLE TAG/LABEL - MATERIEL 

(COLOR YELLOW).  ANNOTATE REMARKS BLOCK WITH "INSPECTED SERVICEABLE IAW CH-47-02-

02 (TB 1-1520-240-20-141)."

         (8)  DD FORM 1577-2/DD FORM 1577-3, UNSERVICEABLE (REPARABLE) TAG/LABEL 

- MATERIEL (COLOR GREEN).  ANNOTATE REMARKS BLOCK WITH UNSERVICEABLE IAW CH-47-

02-02 (TB 1-1520-240-20-141)."

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 897-3377 OR (256) 313-3377, FAX IS DSN 897-4348 OR (256) 

313-4348.  EMAIL IS "STEVE.PROSISE@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 897-1508 OR (256) 313-1508, 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. HARRY TRUMBULL (SAIC), AMSAM-SF-A, DSN 897-2095 OR 

(256) 313-2095, FAX IS DSN 895-2111 OR (256) 313-2111.  EMAIL IS 

"HARRY.TRUMBULL@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.  DATAFAX IS DSN 897-6630 OR (256) 313-6630.  

EMAIL IS "RONNIE.SAMMONS@REDSTONE.ARMY.MIL".

     G.  AFTER HOURS CONTACT THE AMCOM COMMAND OPERATIONS CENTER (COC) DSN 897-

2066/7 OR (256) 313-2066/7.