Safety of Flight CH-47-93-02 |
SYNOPSIS CH-47-93-02 SAFETY OF FLIGHT MESSAGE, TECHNICAL, U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT, UNGROUNDING OF U.S. ARMY CH-47D, MH-47D, MH-47E AIRCRAFT, (TB 1-1520-240-20-63). 302100Z OCT 92, BRAD MEYER, AMSAT-C-XS, X2085. 01 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES CDRATCOM ST LOUIS MO //AMSAT-C-XS// AIG 8881 AIG 9004 AIG 8708 AIG 9042 CDR4THBN228THAVN SOTO CANO //AVN-AMO// CDRBGAD RICHMOND KY //SDSBG-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 EDWARD J. HOLLMAN CHIEF, SAFETY OFFICE . UNCLAS 02 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z 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 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES SUBJECT - SAFETY-OF-FLIGHT MESSAGE, TECHNICAL, RCS CSGLD-1860(R1), U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT, UNGROUNDING OF U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT, (CH-47-93-02) (TB 1-1520-240-20-63) 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 - THE RED //X// MAY BE CLEARED WHEN THE CORRECTION OF PARAGRAPH 9 BELOW IS COMPLETED. B. AIRCRAFT IN DEPOT MAINTENANCE - SAME AS PARA 1A. C. AIRCRAFT UNDERGOING MAINTENANCE - SAME AS PARA 1A. D. AIRCRAFT IN TRANSIT - . UNCLAS 04 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES (1) SURFACE/AIR SHIPMENT - SAME AS PARA 1A. (2) FERRY STATUS - SAME AS PARA 1A. E. MAINTENANCE TRAINERS (CATEGORY A, B AND C) - SAME AS PARA 1A. F. COMPONENT/PARTS IN STOCK INCLUDING AVUM, AVIM, AIMI, DEPOT AND WAR RESERVES AT ALL LEVELS - PERFORM REPLACEMENT OF ACTUATOR SCREWS IAW BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92. DEPOT SPARES WILL BE CORRECTED BY CCAD TEAMS. NO HYDRAULIC CHECK IS REQUIRED. HYDRAULIC CHECK WILL BE DONE DURING INSTALLATION AS REQUIRED BY MAINTENANCE MANUAL. NOTE DEPOTS THAT DO NOT HAVE THE CAPABILITY TO INSPECT THE SUBJECT ASSEMBLIES IN ACCORDANCE WITH THIS MESSAGE, CONTACT THE LOGISTICAL POINT OF CONTACT. DO NOT ISSUE UNTIL THIS SAFETY OF FLIGHT MESSAGE HAS BEEN COMPLIED WITH AND YOU HAVE BEEN NOTIFIED WHICH ARE SERVICEABLE. 2. TASK/INSPECTION SUSPENSE DATE - N/A. 3. REPORTING COMPLIANCE SUSPENSE DATE - REPORT IAW PARAGRAPH 14B. 4. SUMMARY OF PROBLEM - . UNCLAS 05 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES A. CH-47-93-01, DTG 232230Z OCT 92 GROUNDED ALL U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT DUE TO THE MATERIAL FAILURE OF A SCREW IN THE UPPER BOOST ACTUATOR CONTROL VALVE DUE TO HYDROGEN EMBRITTLEMENT. NOTE: CH-47C AIRCRAFT WERE NOT AFFECTED BY CH-47-93-01. B. REPLACEMENT SCREWS ARE MADE OF A DIFFERENT MATERIAL, HAVE BEEN SILVER-PLATED AND HAVE A NYLON LOCKING FEATURE BONDED TO THEM AND ARE IDENTIFIED BY SIX (6) DIMPLES ON THE HEAD. BOEING TEAMS ARE BEING SENT TO CENTRALIZED LOCATIONS TO TRAIN UNIT MAINTENANCE PERSONNEL (AVUM) AND AVAILABLE CH-47D LOGISTICS ASSISTANCE REPRESENTATIVES (LAR) ON THE PROPER INSTALLATION AND INSPECTION OF THE NEW SCREWS. UNITS WILL BE TELEPHONICALLY NOTIFIED OF TRAINING SCHEDULE. ANY QUESTIONS SHOULD BE DIRECTED TO THE LOGISTICAL POC. THE NEW SCREWS AND WRITTEN INSTRUCTIONS WILL BE PROVIDED BY BOEING TEAMS. (ADDITIONAL COPIES OF BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92 MAY BE OBTAINED FROM LOCAL LAR). UNITS ARE REQUIRED TO PROVIDE QUALIFIED MAINTENANCE PERSONNEL TO ATTEND TRAINING WHICH MAY BE CONDUCTED AFTER NORMAL WORKING HOURS. . UNCLAS 06 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES C. THE PURPOSE OF THIS MESSAGE IS TO PROVIDE UNGROUNDING INSTRUCTIONS FOR U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT. 5. END ITEMS TO BE INSPECTED - U.S. ARMY CH-47D, MH-47D AND MH-47E AIRCRAFT. CH-47D AIRCRAFT SERIAL NUMBERS 91-00267 AND SUBSEQUENT WILL BE CORRECTED BY CONTRACTOR PRIOR TO DELIVERY AND RECORDS WILL NOT REQUIRE IDENTIFICATION OF THIS ACTION. MH-47E AIRCRAFT SERIAL NUMBERS 90-00414 AND SUBSEQUENT WILL BE CORRECTED BY CONTRACTOR PRIOR TO DELIVERY AND RECORDS WILL NOT REQUIRE IDENTIFICATION OF THIS ACTION. 6. ASSEMBLY COMPONENTS AFFECTED - NOMENCLATURE PART NO. NSN FORWARD AND AFT PIVOTING 145H6600-19 1650-01-304-9016 AND SWIVELING UPPER BOOST 145H6600-9 1650-01-151-1713 ACTUATOR 145H6600-11 1650-01-118-5627 145H6600-20 1650-01-303-7897 145H6600-10 1650-01-151-5459 145H6600-12 1650-01-117-4131 145H6700-18 1650-01-303-7898 145H6700-10 1650-01-151-9231 . UNCLAS 07 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES 145H6700-8 1650-01-118-5628 145H6700-19 1650-01-302-0076 145H6700-11 1650-01-151-9232 145H6700-9 1650-01-119-7412 7. PARTS AFFECTED - NOMENCLATURE PART NO. ACTUATOR SCREW (OLD) NAS1351-3LL10P ACTUATOR SCREW (OLD) NAS1351C3LL10P ACTUATOR SCREW (NEW) NAS1351N3LB10S 8. INSPECTION PROCEDURES - N/A. 9. CORRECTION PROCEDURES - A. AFTER TRAINING FROM BOEING TEAMS, MAINTENANCE PERSONNEL (AVUM) SHALL REPLACE THE EIGHT (8) ACTUATOR SCREWS PER AIRCRAFT IAW BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92. IF BROKEN ACTUATOR SCREW IS FOUND OR CANNOT BE REMOVED, REPLACEMENT OF THE ACTUATOR ASSEMBLY IS REQUIRED. WARNING ANY SCREW DROPPED IN THE ACTUATOR MUST BE REMOVED. NOTE . UNCLAS 08 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES THIS MESSAGE AUTHORIZES AVUM PERSONNEL TO PERFORM THE DEPOT LEVEL MAINTENANCE PROCEDURES PER THE BOEING INSTRUCTION ON A ONE TIME, NONRECURRING BASIS. B. REIDENTIFY ACTUATORS WITH SUFFIX "A" BEHIND THE SERIAL NUMBER ON A METAL DECAL. BOEING INSTRUCTIONS ALLOW THE INSTALLATION OF A METAL DECAL ON THE ACTUATORS. C. FLIGHT CONTROL TRAVEL CHECK IAW BOEING INSTRUCTION IS REQUIRED. D. AFTER COMPLETION OF BOEING LETTER/MESSAGE 8-1420-3-4440, DATED 29 OCT 92, THE RED //X// MAY BE CLEARED. E. UNITS SHALL REPORT UNGROUNDED AIRCRAFT ON A DAILY BASIS IAW PARAGRAPH 14B. 10. SUPPLY/PARTS AND DISPOSITION - A. PARTS REQUIRED - BOEING TEAMS WILL PROVIDE REPLACEMENT PARTS. B. REQUISITIONING INSTRUCTIONS - IF REPLACEMENT OF THE ACTUATOR IS REQUIRED, REQUISITION ACTUATOR USING AIRCRAFT ON GROUND (AOG) PROCEDURES AND SOF PROJECT CODE "CSX" (CHARLIE-SIERRA-XRAY). MANDATORY ENTRIES ON REQUISITIONS AND TURN-IN DOCUMENTS ARE: . UNCLAS 09 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES (1) SIGNAL CODE (CC51) SHALL BE "C" (CHARLIE) OR "L" (LIMA). (2) FUND CODE (CC52-53) SHALL BE "H1" (HOTEL-ONE). (3) PROJECT CODE (CC57-59) SHALL BE "CSX" (CHARLIE-SIERRA-XRAY). NOTE PROJECT CODE AND FUND CODES WILL DIRECT FREE ISSUE OF DEPOT LEVEL REPARABLES AND CONSUMABLE ITEMS ADDRESSED IN SAFETY MESSAGES. THEY WILL ALSO PROVIDE A MEANS TO COLLECT HISTORICAL DATA TO SUPPORT FUTURE BUDGET SUBMISSIONS. USE OF OTHER SIGNAL CODES, FUND CODES OR PROJECT CODES WILL RESULT IN THE CUSTOMER PAYING FOR THE PART OR A REQUISITION REJECTION. CODES LISTED IN PARA 10B(1) - (3) MUST APPEAR ON BOTH THE REQUISITION AND TURN-IN DOCUMENTS. C. BULK AND CONSUMABLE MATERIALS - BOEING TEAMS WILL PROVIDE REPLACEMENT PARTS. D. DISPOSITION - (1) REMOVED SCREWS SHALL BE TAGGED/IDENTIFIED BY SERIAL NUMBER OF ACTUATOR AND MAIL TO: . UNCLAS 10 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES BOEING HELICOPTER CO. GPU CENTER 3E, BLDG 325 RTE 291 INDUSTRIAL HWY RIDLEY PARK, PA 19078-0361 DODAAC: CH0CJ1 ATTN: MR. OWEN KRAHAM (2) UNSERVICEABLE ACTUATORS SHALL BE RETURNED TO DEPOT IAW NORMAL SUPPLY PROCEDURES AFTER NOTIFYING LOGISTICAL POC. E. DISPOSITION OF HAZARDOUS MATERIAL - N/A. 11. SPECIAL TOOLS, JIGS AND FIXTURES REQUIRED - N/A. 12. APPLICATION - A. CATEGORY OF MAINTENANCE - AVUM. B. TIME REQUIRED - (1) TOTAL OF 6 MANHOURS USING 3 PERSONS. (2) TOTAL OF 2 HOURS DOWNTIME FOR ONE END ITEM. C. ESTIMATED COST IMPACT OF STOCK FUND ITEMS TO THE FIELD - N/A. 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 . UNCLAS 11 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES INSPECTION - (1) DMWR 55-1650-395, PIVOTING ACTUATOR, DATED 31 JAN 87, C3 30 MAR 92. (2) TM 55-1520-240-23, AVIATION UNIT AND INTERMEDIATE MAINTENANCE MANUAL, CH-47D HELICOPTER, DATED 10 MAY 83. (3) TM 55-1520-240-23P, AVIATION UNIT AND INTERMEDIATE MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST (INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS), CH-47D HELICOPTER, DATED 1 NOV 89. 13. REFERENCES - N/A. 14. RECORDING AND REPORTING REQUIREMENTS - A. REPORTING COMPLIANCE SUSPENSE DATE (AIRCRAFT) - REPORT IAW PARAGRAPH 14B ONLY. B. TASK/INSPECTION REPORTING SUSPENSE DATE (AIRCRAFT) - REPORT THE FOLLOWING TO MR. STEPHEN F. KOUCHNERKAVICH, DATAFAX DSN 693-1485 OR COMMERCIAL 314/263-1485 OR TELEPHONE DSN 693-1415 OR COMMERCIAL 314/263-1415. REPORT BY 0900 HOURS CST ON A DAILY BASIS UNTIL ALL UNIT AIRCRAFT ARE UNGROUNDED: (1) AIRCRAFT SERIAL NUMBER THAT HAVE COMPLETED SCREW REPLACEMENT. . UNCLAS 12 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES (2) SERIAL NUMBERS OF ACTUATOR ASSEMBLIES THAT REQUIRE REPLACEMENT. (3) SERIAL NUMBER OF SPARE ACTUATORS IN AVUM, AVIM, AND AIMI THAT HAVE COMPLETED SCREW REPLACEMENT. C. REPORTING COMPLIANCE SUSPENSE DATE (SPARES) - N/A. D. TASK/INSPECTION REPORTING SUSPENSE DATE (SPARES) - N/A. E. THE FOLLOWING FORMS ARE APPLICABLE AND ARE TO BE COMPLETED IN ACCORDANCE WITH DA PAM 738-751, 15 JUN 92 - (1) DA FORM 2408-5-1, EQUIPMENT MODIFICATION RECORD (ACTUATOR) (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 (IF ACTUATOR REPLACEMENT IS REQUIRED) (5) DA FORM 2410, COMPONENT REMOVAL AND REPAIR/OVERHAUL RECORD (IF ACTUATOR REPLACEMENT IS REQUIRED) 15. WEIGHT AND BALANCE - N/A. 16. POINTS OF CONTACT - . UNCLAS 13 13 302100Z OCT 92 OO OO UUUU ZEXW 3041600Z YES 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. STEPHEN F. KOUCHNERKAVICH, SFAE-AV-CH-L, DSN 693-1415 OR COMMERCIAL 314/263-1415. DATAFAX NUMBER IS DSN 693-1485 OR COMMERCIAL 314/263-1485. C. FORMS AND RECORDS POINT OF CONTACT FOR THIS MESSAGE IS MR. JOHN ZUBER, AMSAV-MPPD, DSN 693-1955 OR COMMERCIAL 314/263-1955. D. SAFETY POINT OF CONTACT FOR THIS MESSAGE IS MR. BRAD MEYER, AMSAT-C-XS, DSN 693-2085 OR COMMERCIAL 314/263-2085. E. FOREIGN MILITARY SALES (FMS) RECIPIENTS REQUIRING CLARIFICATION OF ACTION ADVISED BY THIS MESSAGE SHOULD CONTACT MW4 JAY NANCE/MR. RON VAN REES, AMSAV-I, DSN 693-3826 OR COMMERCIAL 314/263-3826. F. AFTER HOURS CONTACT ATCOM COMMAND OPERATIONS CENTER (COC) DSN 693-2066/7 OR COMMERCIAL 314/263-2066/7. |