Small aircraft cuts out aircraft when entering uncontrolled airport traffic pattern.

Attributes
ACN	166301
Time
Date	199012
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : 6a0
State Reference	GA
Altitude	msl bound lower : 1300 msl bound upper : 1300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	other
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach landing other
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	descent : approach
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 200 flight time total : 9500
ASRS Report	166301
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Miss Distance	vertical : 300
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I approached the airport from the northwest where I was patrolling a pipeline and wanted to stop in cartersville for gas. I was at 500' and saw an small aircraft a on what might have been along high downwind. I tuned in 122.8 (which was wrong) and made a call to get traffic information. As I was low and close in I turned a base to final and landed. As I turned off the runway I saw an small aircraft B pass overhead about 300' that I hadn't seen. He landed a few mins later and told me I had cut him off on final. I had forgotten that the frequency at cartersville was 123.0 not 122.8. I felt real bad that I had not checked this before getting in the pattern, and that I did not see the small aircraft B on final.

Original NASA ASRS Text

Title: SMA CUTS OUT ACFT WHEN ENTERING UNCONTROLLED ARPT TRAFFIC PATTERN.

Narrative: I APCHED THE ARPT FROM THE NW WHERE I WAS PATROLLING A PIPELINE AND WANTED TO STOP IN CARTERSVILLE FOR GAS. I WAS AT 500' AND SAW AN SMA A ON WHAT MIGHT HAVE BEEN ALONG HIGH DOWNWIND. I TUNED IN 122.8 (WHICH WAS WRONG) AND MADE A CALL TO GET TFC INFO. AS I WAS LOW AND CLOSE IN I TURNED A BASE TO FINAL AND LANDED. AS I TURNED OFF THE RWY I SAW AN SMA B PASS OVERHEAD ABOUT 300' THAT I HADN'T SEEN. HE LANDED A FEW MINS LATER AND TOLD ME I HAD CUT HIM OFF ON FINAL. I HAD FORGOTTEN THAT THE FREQ AT CARTERSVILLE WAS 123.0 NOT 122.8. I FELT REAL BAD THAT I HAD NOT CHKED THIS BEFORE GETTING IN THE PATTERN, AND THAT I DID NOT SEE THE SMA B ON FINAL.

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.