PA28 experienced near midair collision with C172 at (6s8) uncontrolled airport.

Attributes
ACN	585080
Time
Date	200306
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 6s8.airport
State Reference	MT
Altitude	msl single value : 4500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	PA-32 Cherokee Six/Lance/Saratoga
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Aircraft 2
Operator	general aviation : personal
Make Model Name	Champion Citabria
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time last 90 days : 150 flight time total : 725 flight time type : 450
ASRS Report	583080
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : airborne critical non adherence : published procedure
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Miss Distance	horizontal : 15000 vertical : 300
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

My aircraft was in the pattern doing touch-and-goes. We called our position on departure leg then turning downwind for runway 4. Citabria called us in sight and would cross midfield to enter downwind. At about midfield, I saw cessna starting turn to downwind about 100 ft lower than our altitude. At that point, the cessna reported turning downwind. I pulled up and started a climbing right 360 degree turn. I reported making the turn to reenter downwind for traffic separation. The only call heard by the cessna was the one turning downwind. My aircraft and citabria were in contact with each other and were reporting each leg of the traffic pattern.

Original NASA ASRS Text

Title: PA28 EXPERIENCED NMAC WITH C172 AT (6S8) UNCTLED ARPT.

Narrative: MY ACFT WAS IN THE PATTERN DOING TOUCH-AND-GOES. WE CALLED OUR POS ON DEP LEG THEN TURNING DOWNWIND FOR RWY 4. CITABRIA CALLED US IN SIGHT AND WOULD CROSS MIDFIELD TO ENTER DOWNWIND. AT ABOUT MIDFIELD, I SAW CESSNA STARTING TURN TO DOWNWIND ABOUT 100 FT LOWER THAN OUR ALT. AT THAT POINT, THE CESSNA RPTED TURNING DOWNWIND. I PULLED UP AND STARTED A CLBING R 360 DEG TURN. I RPTED MAKING THE TURN TO REENTER DOWNWIND FOR TFC SEPARATION. THE ONLY CALL HEARD BY THE CESSNA WAS THE ONE TURNING DOWNWIND. MY ACFT AND CITABRIA WERE IN CONTACT WITH EACH OTHER AND WERE RPTING EACH LEG OF THE TFC PATTERN.

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.