VFR aircraft passes over the top of another aircraft. Pilot complains.

Attributes
ACN	214340
Time
Date	199206
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : law
State Reference	OK
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : law
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other other
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other other
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	214340
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Miss Distance	horizontal : 0 vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Nga X, an small aircraft was inbound to runway 17 at lawton from the southwest. Nga X was reported 4 mi southwest. Nga Y, an small aircraft was also inbound to runway 17 from 6 mi southwest and expected to overtake nga X. Additional traffic in the air traffic area was an MTR Z climbing off runway 35 to the southwest. The traffic was issued to the aircraft. Nga X reported an aircraft flying over the top of him but was not sure which aircraft it was. Lawton tower does not have radar and was not able to issue accurate traffic information. This could be a hazardous situation when a pilot believes he is clear of traffic but in fact has observed the wrong aircraft and the controller is unable to insure that the traffic is no longer a factor. Radar in the lawton tower would improve the controllers ability to provide positive control and insure separation.

Original NASA ASRS Text

Title: VFR ACFT PASSES OVER THE TOP OF ANOTHER ACFT. PLT COMPLAINS.

Narrative: NGA X, AN SMA WAS INBOUND TO RWY 17 AT LAWTON FROM THE SW. NGA X WAS RPTED 4 MI SW. NGA Y, AN SMA WAS ALSO INBOUND TO RWY 17 FROM 6 MI SW AND EXPECTED TO OVERTAKE NGA X. ADDITIONAL TFC IN THE ATA WAS AN MTR Z CLBING OFF RWY 35 TO THE SW. THE TFC WAS ISSUED TO THE ACFT. NGA X RPTED AN ACFT FLYING OVER THE TOP OF HIM BUT WAS NOT SURE WHICH ACFT IT WAS. LAWTON TWR DOES NOT HAVE RADAR AND WAS NOT ABLE TO ISSUE ACCURATE TFC INFO. THIS COULD BE A HAZARDOUS SITUATION WHEN A PLT BELIEVES HE IS CLR OF TFC BUT IN FACT HAS OBSERVED THE WRONG ACFT AND THE CTLR IS UNABLE TO INSURE THAT THE TFC IS NO LONGER A FACTOR. RADAR IN THE LAWTON TWR WOULD IMPROVE THE CTLRS ABILITY TO PROVIDE POSITIVE CTL AND INSURE SEPARATION.

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.