Aircraft entered the air traffic area without an ATC clearance.

Attributes
ACN	149523
Time
Date	199006
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sle
State Reference	OR
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sle
Operator	general aviation : personal
Make Model Name	Helicopter
Flight Phase	landing other other
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft
Flight Phase	climbout : takeoff other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller non radar : 6 controller radar : 2
ASRS Report	149523
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe non adherence : far
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 3000 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Small aircraft X reported 1 mi southwest at 1000' of the airport for landing. The small aircraft X was observed at this position. The small aircraft X was in conflict with an small aircraft Y on left downwind for runway 16. Immediate control instructions to small aircraft X. Incident is being reported to FSDO-H10 (flight standards district office-hillboro).

Original NASA ASRS Text

Title: ACFT ENTERED THE ATA WITHOUT AN ATC CLRNC.

Narrative: SMA X RPTED 1 MI SW AT 1000' OF THE ARPT FOR LNDG. THE SMA X WAS OBSERVED AT THIS POS. THE SMA X WAS IN CONFLICT WITH AN SMA Y ON L DOWNWIND FOR RWY 16. IMMEDIATE CTL INSTRUCTIONS TO SMA X. INCIDENT IS BEING RPTED TO FSDO-H10 (FLT STANDARDS DISTRICT OFFICE-HILLBORO).

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.