Practicing at a notamed closed airport; extra 300 experiences near midair collision with inbound C18...

Attributes
ACN	661104
Time
Date	200506
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft Low Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	cruise other
Aircraft 2
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 50 flight time total : 3000 flight time type : 800
ASRS Report	661104
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac non adherence : far non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 300 vertical : 50
Supplementary
Problem Areas	Airport Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

I was at ZZZ airport for a special event. This particular day was the practice for the wkend event. I had attended the pilot briefing and practiced in the box; over the airport. The box was controled by the air boss; I was in contact with him by radio. I was cleared to taxi; take off; and told the 'airspace was mine' for my practice. The airport was notamed closed and the runways were closed. The air boss had an assistant monitoring the unicom frequency and making periodic announcements that the airport was closed. At 2 mins into my practice; a C182 flew into the box heading northwest at 950 ft AGL. I was descending and flying the opposite direction. When I saw the cessna; I rolled right and pulled at 4-5 G's in avoiding a collision. The aircraft was told (on unicom frequency) to hold outside the airspace and was later cleared in to land. The pilot evidently did not check NOTAMS and did not announce on unicom; according to the air boss.

Original NASA ASRS Text

Title: PRACTICING AT A NOTAMED CLOSED ARPT; EXTRA 300 EXPERIENCES NMAC WITH INBOUND C182.

Narrative: I WAS AT ZZZ ARPT FOR A SPECIAL EVENT. THIS PARTICULAR DAY WAS THE PRACTICE FOR THE WKEND EVENT. I HAD ATTENDED THE PLT BRIEFING AND PRACTICED IN THE BOX; OVER THE ARPT. THE BOX WAS CTLED BY THE AIR BOSS; I WAS IN CONTACT WITH HIM BY RADIO. I WAS CLRED TO TAXI; TAKE OFF; AND TOLD THE 'AIRSPACE WAS MINE' FOR MY PRACTICE. THE ARPT WAS NOTAMED CLOSED AND THE RWYS WERE CLOSED. THE AIR BOSS HAD AN ASSISTANT MONITORING THE UNICOM FREQ AND MAKING PERIODIC ANNOUNCEMENTS THAT THE ARPT WAS CLOSED. AT 2 MINS INTO MY PRACTICE; A C182 FLEW INTO THE BOX HEADING NW AT 950 FT AGL. I WAS DSNDING AND FLYING THE OPPOSITE DIRECTION. WHEN I SAW THE CESSNA; I ROLLED R AND PULLED AT 4-5 G'S IN AVOIDING A COLLISION. THE ACFT WAS TOLD (ON UNICOM FREQ) TO HOLD OUTSIDE THE AIRSPACE AND WAS LATER CLRED IN TO LAND. THE PLT EVIDENTLY DID NOT CHK NOTAMS AND DID NOT ANNOUNCE ON UNICOM; ACCORDING TO THE AIR BOSS.

Data retrieved from NASA's ASRS site as of January 2009 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.

Practicing at a notamed closed airport; extra 300 experiences near midair collision with inbound C182.