Near midair collision between two VFR aircraft.

Attributes
ACN	126922
Time
Date	198910
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : odf
State Reference	SC
Altitude	msl bound lower : 2800 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl
Operator	general aviation : corporate
Make Model Name	Helicopter
Flight Phase	cruise other
Flight Plan	VFR
Aircraft 2
Operator	other
Make Model Name	Fighter
Flight Phase	cruise other cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 190 flight time total : 10800 flight time type : 30
ASRS Report	126922
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	airspace violation : exit conflict : nmac non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other Other
Miss Distance	horizontal : 50 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On a VFR flight from clt to cha on oct/xx/89 in our helicopter while cruising at 3000' MSL in the vicinity of 315 radial 20 DME of the foothills (odf) VOR, I suddenly saw a military fgt approaching up the valley at what appeared to be level with me with a closure rate of approximately 400-500 KTS. I immediately executed an evasive maneuver to avoid a collision with him. We banked the helicopter about 90 degree to the left and lost about 200' altitude. I don't know that he ever saw us and I was unable to get any of his 'numbers'. The fgt was a light gray in color and appeared to be on a low level run of some sort. I immediately checked our position with my copilot referencing latitude/long coordinates from the LORAN on board as well as DME/radial distance from the closest VOR. No communication was attempted with the fgt since he uses 'UHF' frequency and we have 'VHF'. Upon landing at our destination I had our mechanics inspect the helicopter as well as notify the helicopter manufacturing of what had occurred to the helicopter (ie, evasive maneuver). They had our mechanics check the 'spindle blocks' and rotor head for any signs of cracks, stress, etc. Nothing was found and 'they' (the manufacturer) agreed that no damage had occurred.

Original NASA ASRS Text

Title: NMAC BETWEEN TWO VFR ACFT.

Narrative: ON A VFR FLT FROM CLT TO CHA ON OCT/XX/89 IN OUR HELI WHILE CRUISING AT 3000' MSL IN THE VICINITY OF 315 RADIAL 20 DME OF THE FOOTHILLS (ODF) VOR, I SUDDENLY SAW A MIL FGT APCHING UP THE VALLEY AT WHAT APPEARED TO BE LEVEL WITH ME WITH A CLOSURE RATE OF APPROX 400-500 KTS. I IMMEDIATELY EXECUTED AN EVASIVE MANEUVER TO AVOID A COLLISION WITH HIM. WE BANKED THE HELI ABOUT 90 DEG TO THE LEFT AND LOST ABOUT 200' ALT. I DON'T KNOW THAT HE EVER SAW US AND I WAS UNABLE TO GET ANY OF HIS 'NUMBERS'. THE FGT WAS A LIGHT GRAY IN COLOR AND APPEARED TO BE ON A LOW LEVEL RUN OF SOME SORT. I IMMEDIATELY CHECKED OUR POSITION WITH MY COPLT REFERENCING LAT/LONG COORDINATES FROM THE LORAN ON BOARD AS WELL AS DME/RADIAL DISTANCE FROM THE CLOSEST VOR. NO COM WAS ATTEMPTED WITH THE FGT SINCE HE USES 'UHF' FREQ AND WE HAVE 'VHF'. UPON LNDG AT OUR DEST I HAD OUR MECHANICS INSPECT THE HELI AS WELL AS NOTIFY THE HELI MANUFACTURING OF WHAT HAD OCCURRED TO THE HELI (IE, EVASIVE MANEUVER). THEY HAD OUR MECHANICS CHECK THE 'SPINDLE BLOCKS' AND ROTOR HEAD FOR ANY SIGNS OF CRACKS, STRESS, ETC. NOTHING WAS FOUND AND 'THEY' (THE MANUFACTURER) AGREED THAT NO DAMAGE HAD OCCURRED.

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.