Accident Summary:
AIRCRAFT WAS CHALK 5 OF A FORMATION OF 9 RETURNING FROM FSB CROOK TO TAY NINH WEST. THE AIRCRAFT WAS IN A CLIMB THROUGH THE ROTOR WASH OF THE OTHER AIRCRAFT WHEN A NOISE FROM THE REAR AND A SUDDEN YAWING TO THE LEFT AND THE RIGHT WAS EXPERIENCED. THE AIRSPEED OF THE AIRCRAFT WHEN THIS DIFFICULTY WAS ENCOUNTERED IS UNKNOWN BUT, IT SHOULD BE NOTED THAT THE AIRCRAFT WAS MANEUVERING FOR A LANDING CONFIGURATION FOR LANDING AT TAY NINH WEST. EXACT ALTITUDE CANNOT BE POSITIVELY STATED BUT, WITNESS ^COZART^, STATES AIRCRAFT WAS ENTERING RIGHT BASE IN SOUTH TRAFFIC AT TAY NINH. AT THE SAME TIME THE ROTOR TACHOMETER INDICATED A LOSS OF RPM. THE INSTRUCTOR PILOT THEN ENTERED AUTOROTATION. THE AUTOROTATIONAL DESCENT DESCRIBED IS NORMAL. IT WAS POSSIBLE THAT THE AIRCRAFT COMMANDER HAD TIME TO PICK A SUITABLE LANDING AREA. UPON TERMINATION THE AIRCRAFT EXPERIENCED A HARD LANDING WHICH CRACKED THE TRANSMISSION MOUNT ASSEMBLY, THE SHORT SHAFT WAS SEVERED INTERNALLY, THE TRANSMISSION AND ENTIRE ROTOR SYSTEM WAS TILTED FORWARD AT AN UNUSUAL ANGLE, THE TAIL WAS SEVERED FORWARD OF THE 42 DEG GEAR BOX. THE FIELD, WHICH WAS AN ADEQUATE BUT NOT A SUITABLE LANDING AREA. DURING THIS FLIGHT ^CW2 COZART^ WAS ACCOMPLISHING A COMBAT ASSAULT CHECK RIDE FOR A NEW UNIT PILOT, IN ACCORDANCE WITH THE ^269TH AVIATION BATTALION^ (COMBAT) STANDARDIZATION AND TRAINING PROGRAM FOR NEWLY ASSIGNED AVIATORS.\\
Information on U.S. Army helicopter UH-1H tail number 67-17790
The Army purchased this helicopter 0968
Total flight hours at this point: 00001795
Date: 10/13/71
Unit: 187 AHC
South Vietnam
UTM grid coordinates: XT894054
Original source(s) and document(s) from which the incident was created or updated: Defense Intelligence Agency Helicopter Loss database. Also: OPERA (Operations Report. )
Loss to Inventory
The following is Goldbook
information on US Army helicopter UH-1H tail number 67-17790
It is provided here as an ESTIMATE of the history of this helicopter
and is not intended to be the final authority.
This helicopter was purchased by the US Army in 0968.
Please provide any additional information on this helicopter to the VHPA.
DATE FLT HRS UIC UNIT AREA POST COUNTRY 196809 0 0 W0Y6AA OS TO CONUS ITR CONUS AVCOMITR 196810 62 62 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196811 154 216 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196812 133 349 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196901 100 449 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196902 106 555 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196903 128 683 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196904 101 784 WDUTAA 187 ASLT HEL CO VIETNAM RVN 196905 54 838 WCLGAA 20 TRANS CO VIETNAM RVN 196906 0 838 W0MUAA ARADMAC IN STORAGE NAVAL AIR STN AVCOM 196907 0 838 W0MUAA ARADMAC IN STORAGE NAVAL AIR STN AVCOM 196908 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 196909 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 196910 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 196911 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 196912 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 197001 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 197002 0 838 W0MUAA ARADMAC IN MAINT NAVAL AIR STN AVCOM 197003 0 838 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197004 0 838 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197005 0 838 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197006 0 838 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197007 3 841 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197008 0 841 W2WJAA BELL HCPTR BAILMENT FT WORTH AVCOM 197009 33 874 WC3FAA 68 ASLT HEL CO VIETNAM RVN 197010 130 1004 WC3FAA 68 ASLT HEL CO VIETNAM RVN 197011 106 1110 WC3FAA 68 ASLT HEL CO VIETNAM RVN 197012 70 1180 WDUTAA 187 ASLT HEL CO VIETNAM RVN 197101 58 1238 WDUTAA 187 AHC VIETNAM RVN 197102 58 1296 WDUTAA 187 AHC VIETNAM RVN 197103 48 1344 WDUTAA 187 AHC VIETNAM RVN 197104 47 1391 WDUTAA 187 AHC VIETNAM RVN 197105 89 1480 WDUTAA 187 AHC VIETNAM RVN 197106 69 1549 WDUTAA 187 AHC VIETNAM RVN 197107 59 1608 WDUTAA 187 AHC VIETNAM RVN 197108 98 1706 WDUTAA 187 AHC VIETNAM RVN 197109 89 1795 WDUTAA 187 AHC VIETNAM RVN
Please send additions or corrections to:
Gary Roush
43 Overbrook Road
Painted Post, NY 14870
Printed from databases on: 05/14/04
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