C208 pilot and a mooney had an near midair collision at bwg.

Attributes
ACN	604935
Time
Date	200401
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bwg.airport
State Reference	KY
Altitude	msl single value : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme.artcc
Operator	common carrier : air taxi
Make Model Name	Caravan 1 208A
Operating Under FAR Part	Part 135
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zme.artcc
Operator	general aviation : personal
Make Model Name	M-20 Series Undifferentiated or Other Model
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 280 flight time total : 3000 flight time type : 1000
ASRS Report	604935
Person 2
Function	flight crew : single pilot
Events
Anomaly	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 none taken : anomaly accepted
Miss Distance	horizontal : 100 vertical : 200
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Individual was lost/disoriented despite substantial assistance from other aircraft approaching bwg as well as ZME providing VFR radar advisories. Individual made multiple climbs and dscnts once visual contact was established with the airfield. Pilot migrated west of the field and climbed to an altitude of 3500 ft MSL (per CTAF broadcast) and was heading toward the northwest. As I arrived from the west, about 6 NM west of bwg, I made visual contact with the mooney and could confirm his position and altitude. I began a descent below his altitude and headed 2-3 mi south of his current position and away from his apparent vector. Passing through his altitude, I noticed he began a descending left turn. As I got closer, I could see his control of the aircraft became more erratic as it appeared he may have had me in sight. I had made multiple announcements on the CTAF regarding my position, altitude and direction of flight and never received an acknowledgement or interrogation from the mooney. He appeared to be more focused on the airport than the traffic arriving around him and carelessly began a turn and descent to the west and directly into my approaching path. 2 more attempts to query his intentions and verify visual contact with me were unacknowledged. He continued his turn and descent into my path as I took evasive action with a very steep descent straight ahead to pass underneath the mooney. I lost visual sight of the mooney as I passed underneath and in front of him. I estimate our separation to be less than 100 ft laterally and under 200 ft vertically. It was close enough to distinguish piano hinges on the main landing gear doors. An attempt to debrief the mooney pilot once on the ground went largely unemphatic and passively respondent to the impact of my intentions to file an near midair collision report with ZME. His demeanor, statements made, appearance and credentials caused considerable question and concern. These details have been passed onto the FAA and tsa.

Original NASA ASRS Text

Title: C208 PLT AND A MOONEY HAD AN NMAC AT BWG.

Narrative: INDIVIDUAL WAS LOST/DISORIENTED DESPITE SUBSTANTIAL ASSISTANCE FROM OTHER ACFT APCHING BWG AS WELL AS ZME PROVIDING VFR RADAR ADVISORIES. INDIVIDUAL MADE MULTIPLE CLBS AND DSCNTS ONCE VISUAL CONTACT WAS ESTABLISHED WITH THE AIRFIELD. PLT MIGRATED W OF THE FIELD AND CLBED TO AN ALT OF 3500 FT MSL (PER CTAF BROADCAST) AND WAS HEADING TOWARD THE NW. AS I ARRIVED FROM THE W, ABOUT 6 NM W OF BWG, I MADE VISUAL CONTACT WITH THE MOONEY AND COULD CONFIRM HIS POS AND ALT. I BEGAN A DSCNT BELOW HIS ALT AND HEADED 2-3 MI S OF HIS CURRENT POS AND AWAY FROM HIS APPARENT VECTOR. PASSING THROUGH HIS ALT, I NOTICED HE BEGAN A DSNDING L TURN. AS I GOT CLOSER, I COULD SEE HIS CTL OF THE ACFT BECAME MORE ERRATIC AS IT APPEARED HE MAY HAVE HAD ME IN SIGHT. I HAD MADE MULTIPLE ANNOUNCEMENTS ON THE CTAF REGARDING MY POS, ALT AND DIRECTION OF FLT AND NEVER RECEIVED AN ACKNOWLEDGEMENT OR INTERROGATION FROM THE MOONEY. HE APPEARED TO BE MORE FOCUSED ON THE ARPT THAN THE TFC ARRIVING AROUND HIM AND CARELESSLY BEGAN A TURN AND DSCNT TO THE W AND DIRECTLY INTO MY APCHING PATH. 2 MORE ATTEMPTS TO QUERY HIS INTENTIONS AND VERIFY VISUAL CONTACT WITH ME WERE UNACKNOWLEDGED. HE CONTINUED HIS TURN AND DSCNT INTO MY PATH AS I TOOK EVASIVE ACTION WITH A VERY STEEP DSCNT STRAIGHT AHEAD TO PASS UNDERNEATH THE MOONEY. I LOST VISUAL SIGHT OF THE MOONEY AS I PASSED UNDERNEATH AND IN FRONT OF HIM. I ESTIMATE OUR SEPARATION TO BE LESS THAN 100 FT LATERALLY AND UNDER 200 FT VERTLY. IT WAS CLOSE ENOUGH TO DISTINGUISH PIANO HINGES ON THE MAIN LNDG GEAR DOORS. AN ATTEMPT TO DEBRIEF THE MOONEY PLT ONCE ON THE GND WENT LARGELY UNEMPHATIC AND PASSIVELY RESPONDENT TO THE IMPACT OF MY INTENTIONS TO FILE AN NMAC RPT WITH ZME. HIS DEMEANOR, STATEMENTS MADE, APPEARANCE AND CREDENTIALS CAUSED CONSIDERABLE QUESTION AND CONCERN. THESE DETAILS HAVE BEEN PASSED ONTO THE FAA AND TSA.

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.