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01 16 262005Z AUG 99 OO PP UUUU AA ZYUW
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:UNCLAS
SUBJECT - SAFETY OF FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-1860(R1),
CH-47D, MH-47D, AND MH-47E AIRCRAFT, INSPECTION OF H-47 AIRCRAFT
FOR FORWARD AND AFT TRANSMISSION GEAR/BEARING ASSEMBLIES IDENTIFIED
BY SERIAL NUMBER PREFIX "VB", CH-47-99-04 (TB 1-1520-240-20-114).
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 SHALL 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 - SAFETY OF FLIGHT MESSAGE CH-47-99-02
PLACED ALL H-47 SERIES AIRCRAFT ON A RED //X// CONDITION STATUS
SYMBOL. THE RED //X// IMPOSED BY CH-47-99-02 MAY BE CLEARED ON
SOME AIRCRAFT IF THE INSPECTION PROCEDURES OF PARAGRAPH 8 AND
CORRECTION PROCEDURES WITH OPERATING LIMITATION OF PARAGRAPH 9 OF
THIS MESSAGE ARE COMPLIED WITH. AIRCRAFT WHICH REMAIN ON RED
//X// WILL BE MAINTAINED IN FLYABLE STORAGE WITH THE FOLLOWING
RESTRICTIONS: GROUND RUN-UPS ARE RESTRICTED TO OPERATION WITH ECL
AT GROUND POSITION, WITH FLAT BLADE PITCH AND NEUTRAL FLIGHT
CONTROLS.
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 - SAME AS PARA 1A.
PRIOR TO FIRST FLIGHT ON ARRIVAL.
(2) FERRY STATUS
(A) SAME AS PARA 1A.
(B) THOSE AIRCRAFT THAT HAVE A DD 250 AND ARE AT
BOEING HELICOPTERS WILL BE INSPECTED PRIOR TO FERRY TO FINAL
DESTINATION.
E. MAINTENANCE TRAINERS (CATEGORY A AND B) - SAME AS PARA
1A.
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 PARAGRAPHS 6 AND 7 SHALL BE ANNOTATED TO READ SOF CH-47-
99-04 (TB 1-1520-240-20-114) NOT COMPLIED WITH.
(1) WHOLESALE STOCK - N/A.
(2) RETAIL STOCK - UPON RECEIPT OF THIS MESSAGE
COMMANDERS AND OTHERS MAINTAINING RETAIL STOCK AT INSTALLATION
LEVEL AND BELOW SHALL CONTACT THE SUPPORTED AVIATION UNIT TO
PERFORM THE INSPECTION REQUIRED BY PARAGRAPH 8 AND THE CORRECTION
PROCEDURES OF PARAGRAPH 9 ON DISCREPANT MATERIEL. REPORT
COMPLIANCE WITH THIS MESSAGE IAW PARAGRAPH 14D(2).
G. COMPONENTS/PARTS IN WORK (DEPOT LEVEL AND OTHERS) -
ITEMS LISTED IN PARAGRAPHS 6 AND 7 IN WORK WILL NOT BE ISSUED
UNTIL COMPLIANCE WITH THIS MESSAGE.
2. TASK/INSPECTION SUSPENSE DATE WITHIN 5 WORKING DAYS FROM
THE DTG OF THIS MESSAGE.
3. REPORTING COMPLIANCE SUSPENSE DATE - NO LATER THAN 21 SEP 99
IAW PARA 14A OF THIS MESSAGE.
4. SUMMARY OF PROBLEM -
A. ONE DISCREPANT SECOND STAGE PLANETARY TRANSMISSION
GEAR/BEARING ASSEMBLY IDENTIFIABLE TO "VB" SERIAL NUMBER PREFIX
WAS FOUND. FOUR DISCREPANT SECOND STAGE PLANETARY TRANSMISSION
GEAR/BEARING ASSEMBLIES IDENTIFIABLE TO "GG" SERIAL NUMBER PREFIX
WERE FOUND. THE DISCREPANCIES WERE NOT DETECTED BY THE REQUIRED
INSPECTION PROCEDURES AT TIME OF MANUFACTURE. THESE GEARS ARE
LOCATED IN THE FORWARD AND AFT TRANSMISSIONS. AN ANALYTICAL
INVESTIGATION AND RESEARCH OF HISTORICAL DATA HAVE LED TO A RISK
DETERMINATION THAT GEAR/BEARING ASSEMBLIES IDENTIFIABLE BY A
SERIAL NUMBER PREFIX "VB" ARE CONSIDERED SERVICEABLE WITH
IMPROBABLE RISK OF FAILURE (I.E. CRACK PROPAGATION) IF THE
OPERATING LIMITATION IDENTIFIED BY PARAGRAPH 9 ARE ADHERED TO.
NOTE
GEAR/BEARING ASSEMBLIES WITH SERIAL NUMBER
PREFIX "GG" ARE CONSIDERED UNSERVICEABLE
AND MUST BE INSPECTED IAW CH-47-99-03.
B. FOR MANPOWER/DOWNTIME AND FUNDING IMPACTS SEE PARA 12.
C. THE PURPOSE OF THIS MESSAGE IS TO INSPECT ALL FORWARD
AND AFT TRANSMISSION RECORDS FOR SPECIFIC PART NUMBER/SERIAL
NUMBER COMBINATIONS. TRANSMISSIONS WITH ALL FIRST AND SECOND
STAGE GEAR/BEARING ASSEMBLIES IDENTIFIED BY SERIAL NUMBER PREFIX
"VB" ARE CONSIDERED SERVICEABLE WITH OPERATING LIMITATION.
5. END ITEMS TO BE INSPECTED - ALL CH-47D, MH-47D, AND MH-47E
AIRCRAFT.
6. ASSEMBLY COMPONENTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
TRANSMISSION, FORWARD 145D1300-ALL 1615-01-317-6446
1615-01-312-5162
1615-01-296-3090
1615-01-306-6971
1615-01-216-3827
TRANSMISSION, AFT 145D2300-ALL 1615-01-315-4071
1615-01-327-1297
1615-01-296-3091
1615-01-307-4842
1615-01-216-3829
7. PARTS TO BE INSPECTED -
NOMENCLATURE PART NO. NSN
GEAR/BEARING ASSY 145DS010-3 N/A
145DS010-5 3110-01-228-1647
145DS0106 3110-01-353-7369
145DS0108 3110-01-353-7369
GEAR/BEARING ASSY 145DS0116 3020-01-114-9550
145DS011-8 3110-01-232-7708
145DS011-9 3110-01-350-3674
145DS011-11 3110-01-350-3674
8. INSPECTION PROCEDURES
A. INSPECT THE FORWARD AND AFT TRANSMISSION DA FORM 2408-16
AIRCRAFT COMPONENT HISTORICAL RECORDS.
B. IF THE FORWARD TRANSMISSION DA FORM 2408-16 LISTS FOUR
1ST STAGE GEAR/BEARING ASSEMBLIES WITH PART NUMBER 145DS011-6 OR
-8 WITH SERIAL NUMBER PREFIX "VB" AND SIX 2ND STAGE GEAR/BEARING
ASSEMBLIES WITH PART NUMBER 145DS010-3 OR -5 WITH SERIAL NUMBER
PREFIX "VB", THAT TRANSMISSION IS CONSIDERED SERVICEABLE WITH
OPERATING LIMITATION AS DEFINED BY PARAGRAPH 9.
C. IF THE AFT TRANSMISSION DA FORM 2408-16 LISTS FOUR 1ST
STAGE GEAR/BEARING ASSEMBLIES WITH PART NUMBER 145DS011-6 OR -8
WITH SERIAL NUMBER PREFIX "VB" AND SIX 2ND STAGE GEAR/BEARING
ASSEMBLIES WITH PART NUMBER 145DS010-3 OR -5 WITH SERIAL NUMBER
PREFIX "VB", THAT TRANSMISSION IS CONSIDERED SERVICEABLE WITH
OPERATING LIMITATION AS DEFINED BY PARAGRAPH 9.
NOTE
ALL TWENTY FORWARD AND AFT TRANSMISSION
GEAR/BEARING ASSY SERIAL NUMBERS MUST BEGIN WITH
PREFIX "VB" FOR THE AIRCRAFT TO BE CONSIDERED
SERVICEABLE WITH THE OPERATING LIMITATION AS
DEFINED BY PARAGRAPH 9.
D. IF EITHER TRANSMISSION DA FORM 2408-16 LISTS ANY
GEAR/BEARING ASSEMBLIES WITH PART NUMBER 145DS010-6 OR -8 OR
145DS011-9 OR -11 OR SERIAL NUMBERS WITH A "GG" PREFIX, THE
TRANSMISSION IS UNSERVICEABLE AND THE AIRCRAFT WILL REMAIN ON A
RED //X// CONDITION STATUS UNTIL THE TRANSMISSION IS REPLACED
WITH ONE WHICH HAS BEEN INSPECTED IAW SOF CH-47-99-03.
E. IF A TRANSMISSION DA FORM 2408-16 DOES NOT IDENTIFY ALL
INSTALLED FIRST OR SECOND STAGE GEAR/BEARING ASSEMBLIES BY SERIAL
NUMBER, THE TRANSMISSION IS CONSIDERED SUSPECT AND UNSERVICEABLE
AND THE AIRCRAFT WILL REMAIN ON A RED //X// CONDITION STATUS.
TRANSMISSION BUILD RECORDS ARE BEING OBTAINED TO DETERMINE IF
THEY ARE SERVICEABLE. CONTACT LOGISTICAL POC IN PARA 16B FOR
BUILD RECORD INFORMATION.
9. CORRECTION PROCEDURES
A. TRANSMISSIONS WHICH CONTAIN GEAR/BEARING ASSEMBLIES AS
IDENTIFIED IN PARAGRAPHS 8B AND 8C ABOVE ARE CONSIDERED
SERVICEABLE WITH OPERATING LIMITATION. IF TWO SERVICEABLE
TRANSMISSIONS ARE INSTALLED ON SAME AIRCRAFT, THE RED "X" STATUS
SYMBOL REQUIRED BY SAFETY OF FLIGHT MESSAGE CH-47-99-02 SHALL BE
CHANGED TO A CIRCLED RED //X//. THE CIRCLED RED //X// ENTRY
SHALL STATE "AIRCRAFT RESTRICTED TO FLIGHT OPERATIONS AT A
MAXIMUM OF 80 PERCENT DUAL ENGINE TORQUE." AIRCRAFT WHICH EXCEED
THIS LIMITATION ARE AUTHORIZED AN IMMEDIATE ONE TIME FLIGHT TO
THE NEAREST SECURE MAINTENANCE FACILITY AND THE AIRCRAFT SHALL BE
PLACED ON A RED //X// CONDITION STATUS.
CAUTION
IMMEDIATE ACTION MUST BE TAKEN TO REDUCE
STRESS WHEN THE CRUISE GUIDE INDICATOR
ENTERS THE RED AND YELLOW STRIPED BAND
(CH/MH-47D) OR THE RED BAND (MH-47E).
THIS CAN BE ACCOMPLISHED BY LOWERING
THRUST CONTROL LEVER, REDUCING AIRSPEED,
RELEASING BACK PRESSURE ON THE CYCLIC
STICK, OR BY REDUCING THE SEVERITY OF THE
MANEUVER. HIGH LOAD MANEUVERING CONDITIONS
MAY CAUSE THE 80 PERCENT DUAL ENGINE TORQUE
LIMIT TO BE EXCEEDED.
NOTE
TO ENSURE TORQUE REDUCTION OF BOTH FORWARD
AND AFT TRANSMISSIONS, WHEN LOADING AIRCRAFT,
ATTEMPT TO MAINTAIN NEUTRAL CENTER OF GRAVITY.
B. PREFLIGHT PLANNING SHALL ENSURE ABOVE LIMITATION IS NOT
EXCEEDED.
C. TRANSMISSIONS THAT DO NOT HAVE GEAR/BEARING ASSEMBLIES
SERIAL NUMBER DATA ON THE DA FORM 2408-16 ARE UNSERVICEABLE
PENDING A SEARCH OF DEPOT RECORDS FOR SERVICEABLE GEAR BEARING
ASSEMBLIES IN THE SUSPECT TRANSMISSION. CONTACT THE LOGISTICAL
POC IN PARA 16B.
D. REPORT THE RESULTS OF THE INSPECTION IAW PARA 14B.
E. FOR AIRCRAFT WITH ANALOG GAGES, THE ENGINE TORQUE METER
INDICATOR SHALL BE RED TAPED AT 80 PERCENT TO IDENTIFY THIS
OPERATING LIMITATION FOR AIRCRAFT WHICH HAVE TRANSMISSIONS
IDENTIFIED IN PARA 8B AND 8C. FOR THOSE AIRCRAFT WITH MULTI-
FUNCTION DISPLAYS, A PLACARD NOTING THIS OPERATING LIMITATION
WILL BE AFFIXED ADJACENT TO THE DISPLAY. THIS MARKING SHALL BE
REMOVED WHEN SERVICEABLE TRANSMISSIONS DEFINED BY REFERENCE 13B
ARE INSTALLED.
10. SUPPLY/PARTS AND DISPOSITION -
A. PARTS REQUIRED - N/A.
B. REQUISITIONING INSTRUCTIONS - UNITS SHOULD NOT
REQUISITION REPLACEMENT TRANSMISSIONS AT THIS TIME. FUTURE
MESSAGES WILL PROVIDE REQUISITIONING INSTRUCTIONS.
C. BULK AND CONSUMABLE MATERIALS - N/A.
D. DISPOSITION - N/A.
E. DISPOSITION OF HAZARDOUS MATERIAL N/A.
11. SPECIAL TOOLS AND FIXTURES REQUIRED - N/A.
12. APPLICATION -
A. CATEGORY OF MAINTENANCE - CONTINUE REPORTING AIRCRAFT
DOWNTIME IAW CH-47-99-02 (DEPOT MAINTENANCE).
B. ESTIMATED TIME REQUIRED FOR INSPECTION- TOTAL OF
1 MAN-HOUR USING 1 PERSON.
C. ESTIMATED COST IMPACT TO THE FIELD - N/A.
D. TB/MWOS TO BE APPLIED PRIOR TO OR CONCURRENTLY WITH THIS
INSPECTION TB 1-1520-240-20-113.
E. PUBLICATIONS WHICH REQUIRE CHANGE AS A RESULT OF THIS
INSPECTION - N/A.
13. REFERENCES:
A. CH-47-99-02.
B. CH-47-99-03 (TB 1-1520-240-20-113).
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 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. TASK/INSPECTION REPORTING SUSPENSE DATE (AIRCRAFT) -
UPON COMPLETION OF INSPECTION, UNITS WILL FORWARD A PRIORITY
MESSAGE TO THE LOGISTICAL POINT OF CONTACT IN PARAGRAPH 16B. THE
REPORT WILL CITE THIS MESSAGE NUMBER, DATE OF INSPECTION,
AIRCRAFT SERIAL NUMBER AND FWD AND AFT TRANSMISSION SERIAL
NUMBERS OF AIRCRAFT RELEASED FOR FLIGHT. INSPECTION AND REPORTS
WILL BE COMPLETED NO LATER THAN 7 DAYS AFTER TASK/INSPECTION
SUSPENSE DATE.
C. REPORTING MESSAGE RECEIPT (SPARES) - N/A.
D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) - 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 2408-5-1, EQUIPMENT MODIFICATION RECORD
(TRANSMISSION).
(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.
(5) DA FORM 2408-16, AIRCRAFT COMPONENT HISTORICAL
RECORD.
15. WEIGHT AND BALANCE - N/A.
16. POINTS OF CONTACT -
A. TECHNICAL POINT OF CONTACT IS MR. LARRY T. WIESCHHAUS,
AMSAM-AR-E-I-C-H, DSN 897-3341 OR (256) 313-3341, DATAFAX IS
(256) 313-4348. E-MAIL IS "LARRY.WIESCHHAUS@REDSTONE.ARMY.MIL".
SECONDARY TECHNICAL POINT OF CONTACT IS MR. MATT WESSELSCHMIDT,
AMSAM-AR-E-I-C-H, DSN 897-3380 OR (256) 313-3380, DATAFAX IS
(256) 313-4348. E-MAIL IS "WESSELSCHMIDT-ML@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
(256) 313-4348 E-MAIL IS "OLSONW@PEOAVN.REDSTONE.ARMY.MIL".
C. WHOLESALE MATERIEL POINT OF CONTACT (SPARES) N/A .
D. 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".
E. SAFETY POC FOR THIS MESSAGE IS MR. ROBERT D. BROCK, AMSAM-
SF-A, DSN 788-8632 OR (256) 842-8632. EMAIL IS
"BOB.BROCK@REDSTONE.ARMY.MIL". THE ALTERNATE POC IS MR. HOWARD
CHILTON, AMSAM-SF-A, DSN 897-2068 OR (256) 313-2068, DATAFAX IS
DSN 897-2111 OR (205) 313-2111.
E-MAIL IS "HOWARD.CHILTON@REDSTONE.ARMY.MIL".
F. 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.
G. AFTER HOURS CONTACT THE AMCOM COMMAND OPERATIONS CENTER
(COC) DSN 897-2066/7 OR (256) 313-2066/7.
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