Near midair collision at jyo, va. An uncontrolled airport.

Attributes
ACN	477670
Time
Date	200007
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : jyo.airport
State Reference	VA
Altitude	agl single value : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Cessna 150
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	landing : touch and go
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	climbout : takeoff climbout : initial
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : commercial pilot : atp
Experience	flight time last 90 days : 3 flight time total : 3580 flight time type : 50
ASRS Report	477670
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac incursion : runway non adherence : far non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 300 vertical : 0
Supplementary
Problem Areas	Flight Crew Human Performance Airspace Structure
Primary Problem	Flight Crew Human Performance

Narrative:

While performing a touch-and-go landing to runway 17 at leesburg airport, va, another single engine aircraft executed a takeoff from runway 35. I detected the aircraft while we were both rotating. We both performed climbing right turns and avoided a collision. This is an untwred airport and I was monitoring unicom, and providing standard xmissions in the pattern. 3 other aircraft were in the pattern for runway 17 with me. The pilot who took off on runway 35 apologized for utilizing the wrong runway on unicom, and stated he was visiting. Had made a preparatory call on unicom that he was preparing to take off on runway 35, it would have alerted me earlier. Additional position reporting at untwred airports can reduce the risk of similar incidents.

Original NASA ASRS Text

Title: NMAC AT JYO, VA. AN UNCTLED ARPT.

Narrative: WHILE PERFORMING A TOUCH-AND-GO LNDG TO RWY 17 AT LEESBURG ARPT, VA, ANOTHER SINGLE ENG ACFT EXECUTED A TKOF FROM RWY 35. I DETECTED THE ACFT WHILE WE WERE BOTH ROTATING. WE BOTH PERFORMED CLBING R TURNS AND AVOIDED A COLLISION. THIS IS AN UNTWRED ARPT AND I WAS MONITORING UNICOM, AND PROVIDING STANDARD XMISSIONS IN THE PATTERN. 3 OTHER ACFT WERE IN THE PATTERN FOR RWY 17 WITH ME. THE PLT WHO TOOK OFF ON RWY 35 APOLOGIZED FOR UTILIZING THE WRONG RWY ON UNICOM, AND STATED HE WAS VISITING. HAD MADE A PREPARATORY CALL ON UNICOM THAT HE WAS PREPARING TO TAKE OFF ON RWY 35, IT WOULD HAVE ALERTED ME EARLIER. ADDITIONAL POS RPTING AT UNTWRED ARPTS CAN REDUCE THE RISK OF SIMILAR INCIDENTS.

Data retrieved from NASA's ASRS site as of July 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.