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Safety of Flight CH-47-02-03 |
UNCLASSIFIED
MSG DTG 252045Z JAN 02
FROM CDRAMCOM, REDSTONE ARSENAL, AL //AMSAM-SF-A//
SUBJECT - SAFETY OF FLIGHT, TECHNICAL, RCS CSGLD-1860(R1), ALL H-
47 SERIES AIRCRAFT, REVISION TO CH-47-02-02, INSPECTION OF THE
ROTARY WING HEAD TIE BAR ASSEMBLY AND ROTOR TACHOMETER, CH-47-02-
03 (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-47-02-03 (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-47-02-03 (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-47-02-03 (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 -
NOTE
FOR AIRCRAFT AWAY FROM HOME STATION, THIS
MESSAGE AUTHORIZES A ONE TIME FLIGHT, WITH
INTERMEDIATE STOPS, TO RETURN TO THE NEAREST
SECURED MAINTENANCE FACILITY/HOME STATION.
(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-47-02-03 (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 - CH-47-02-02 WAS ISSUED ON 24 JANUARY 2002
REQUIRING INSPECTION OF THE TIE BAR ASSEMBLY AND ROTOR
TACHOMETER. THIS MESSAGE SUPERCEDES THE REQUIREMENTS IN CH-47-
02-02. CHANGES HAVE BEEN MADE TO PARA 1C, 8A, 8B, 9A, AND 10D.
(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-47-02-03 (TB 1-
1520-240-20-141) AT THE NEXT ROTOR HEAD REMOVAL, BUT NLT THAN THE
NEXT PHASE INSPECTION OR 25 JANUARY 2004.
(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 2004, 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) USING 10X MAGNIFICATION, VISUALLY INSPECT TIE BAR
PLATES FOR CRACKS. NO CRACKS ALLOWED.
(4) INSPECT THE FOUR TIE BAR SLOTS AS FOLLOWS - USING A
BORESCOPE WITH A RIGID RIGHT ANGLE PROBE, INSERT THE BORESCOPE
PROBE IN EACH SLOT. EXAMINE THE SLOTS FOR CRACKS ALONG THE FULL
DEPTH AND SPAN. 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.
(5) IF A TIE BAR ASSEMBLY FAILS AN INSPECTION IAW PARA 8B,
CORRECT IAW PARA 9A.
(6) 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-47-02-03 (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) IF TSN IS EQUAL TO OR MORE THAN 4800 HOURS, CONTACT
THE TECH POC IN PARA 16A FOR DISPOSITION INSTRUCTIONS.
(5) REINSTALL 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).
(6) 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 LONG 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.
(3) 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 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, CHANGE PARA 2.A.
TO READ AS FOLLOWS: "USING 10X MAGNIFICATION, VISUALLY INSPECT
TIE BAR PLATES FOR CRACKS. NO CRACKS ALLOWED."
(F) TASK 5-23.1.1, PAGE 5-94.2.1, ADD PARA 3 AS
FOLLOWS - "3. INSPECT THE FOUR SLOTS IN THE TIE BAR ASSEMBLY AS
FOLLOWS -
A. USING A BORESCOPE WITH A RIGID RIGHT ANGLE
PROBE, INSERT THE BORESCOPE PROBE IN EACH SLOT. EXAMINE THE
SLOTS FOR CRACKS ALONG THE FULL DEPTH AND SPAN.
NOTE
RECOMMEND THE PROBE NOT EXCEED 0.110 INCH DIAMETER.
B. IF A SUITABLE BORESCOPE AND PROBE ARE NOT
AVAILABLE, VISUALLY INSPECT EACH SLOT USING A LIGHT SOURCE.
C. 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".
(D) TASK 5-31, PAGE 2, CHANGE PARA 2.A. TO READ AS
FOLLOWS: "USING 10X MAGNIFICATION, VISUALLY INSPECT TIE BAR
PLATES FOR CRACKS. 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 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.
(ROTOR HEAD 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-47-02-03 (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-47-02-03 (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 -
(1) PRIMARY - 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".
(2) ALTERNATE - MR. PAUL W. TARR, AMSAM-SA-CS-NF, DSN
897-6861 OR (256) 313-6861. DATAFAX IS DSN 897-6630 OR (256)
313-6630. EMAIL IS E-MAIL "TARRPW@REDSTONE.ARMY.MIL".
G. AFTER HOURS CONTACT THE AMCOM COMMAND OPERATIONS CENTER
(COC) DSN 897-2066/7 OR (256) 313-2066/7.
