<< >> NASA ASRS Report 183633, July 1991

Reporter pilot of small aircraft had near midair collision with another small aircraft in traffic pattern at calaveres airport, ca.

Attributes
ACN	183633
Time
Date	199107
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 0o3
State Reference	CA
Altitude	msl bound lower : 2300 msl bound upper : 2315
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	other
Flight Plan	VFR
Aircraft 2
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	other
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 8 flight time total : 1300 flight time type : 8
ASRS Report	183633
Person 2
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : cfi pilot : commercial
Events
Anomaly	conflict : nmac other spatial deviation
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 75 vertical : 50
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I called in on unicom, 122.8 'entering traffic pattern on a right 45 degree for runway 31, right traffic, calaveras'. At 2315 ft I called on 122.8, 'calaveras traffic, entering right downwind runway 31, calaveras'. At approximately midfield an small aircraft X dove in front of us and in a steep left 75-90 degree bank passed below us as I pulled up. I had my landing light on from the time I entered the pattern on a right 45. I continued on at 2300 ft pattern altitude and landed without further incident. I tried to contact the small aircraft X twice by unicom 122.8, no answer. After the small aircraft landed I contacted the pilot.

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Original NASA ASRS Text

Title: RPTR PLT OF SMA HAD NMAC WITH ANOTHER SMA IN TFC PATTERN AT CALAVERES ARPT, CA.

Narrative: I CALLED IN ON UNICOM, 122.8 'ENTERING TFC PATTERN ON A R 45 DEG FOR RWY 31, R TFC, CALAVERAS'. AT 2315 FT I CALLED ON 122.8, 'CALAVERAS TFC, ENTERING R DOWNWIND RWY 31, CALAVERAS'. AT APPROX MIDFIELD AN SMA X DOVE IN FRONT OF US AND IN A STEEP L 75-90 DEG BANK PASSED BELOW US AS I PULLED UP. I HAD MY LNDG LIGHT ON FROM THE TIME I ENTERED THE PATTERN ON A R 45. I CONTINUED ON AT 2300 FT PATTERN ALT AND LANDED WITHOUT FURTHER INCIDENT. I TRIED TO CONTACT THE SMA X TWICE BY UNICOM 122.8, NO ANSWER. AFTER THE SMA LANDED I CONTACTED THE PLT.

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.