Illegal pattern entry to uncontrolled airport.

Attributes
ACN	305522
Time
Date	199505
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : o88
State Reference	CA
Altitude	msl bound lower : 1000 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 15 flight time total : 550 flight time type : 15
ASRS Report	305522
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe non adherence : published procedure other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course
Consequence	Other
Miss Distance	horizontal : 100 vertical : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Returning home from having an avionics problem corrected, I decided to practice a cruise descent to a straight in at rio vista. I am working on an instrument rating, and wanted practice holding 500 FPM descent. I heard only 1 aircraft in the pattern who gave me the runway in use. I had assumed the other aircraft had left the pattern, but when she called downwind, I decided to break off the approach and turn right to enter a standard pattern. Rio vista uses right traffic and when the other aircraft turned base leg, it left both of us closer than we would ever want to be in-flight. I never make straight in approachs because they are dangerous and dumb. I was not communicating on my new radios because I didn't want anyone to know I was making dangerous and dumb straight-in approachs. Then after spotting the traffic in the pattern did not communicate or take evasive action to keep both aircraft with adequate separation.

Original NASA ASRS Text

Title: ILLEGAL PATTERN ENTRY TO UNCTLED ARPT.

Narrative: RETURNING HOME FROM HAVING AN AVIONICS PROB CORRECTED, I DECIDED TO PRACTICE A CRUISE DSCNT TO A STRAIGHT IN AT RIO VISTA. I AM WORKING ON AN INST RATING, AND WANTED PRACTICE HOLDING 500 FPM DSCNT. I HEARD ONLY 1 ACFT IN THE PATTERN WHO GAVE ME THE RWY IN USE. I HAD ASSUMED THE OTHER ACFT HAD LEFT THE PATTERN, BUT WHEN SHE CALLED DOWNWIND, I DECIDED TO BREAK OFF THE APCH AND TURN R TO ENTER A STANDARD PATTERN. RIO VISTA USES R TFC AND WHEN THE OTHER ACFT TURNED BASE LEG, IT LEFT BOTH OF US CLOSER THAN WE WOULD EVER WANT TO BE INFLT. I NEVER MAKE STRAIGHT IN APCHS BECAUSE THEY ARE DANGEROUS AND DUMB. I WAS NOT COMMUNICATING ON MY NEW RADIOS BECAUSE I DIDN'T WANT ANYONE TO KNOW I WAS MAKING DANGEROUS AND DUMB STRAIGHT-IN APCHS. THEN AFTER SPOTTING THE TFC IN THE PATTERN DID NOT COMMUNICATE OR TAKE EVASIVE ACTION TO KEEP BOTH ACFT WITH ADEQUATE 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.