2 small aircraft's had an near midair collision in the sln traffic pattern. The reporter was NORDO. Aircraft equipment problem radio failure from unk cause.

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Attributes
ACN	338880
Time
Date	199606
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sln
State Reference	KS
Altitude	msl bound lower : 2300 msl bound upper : 2300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sln
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	descent : approach
Person 1
Affiliation	Other
Function	flight crew : single pilot instruction : instructor
Qualification	pilot : instrument pilot : cfi pilot : commercial
Experience	flight time last 90 days : 60 flight time total : 700 flight time type : 200
ASRS Report	338880
Person 2
Affiliation	Other
Function	flight crew : single pilot instruction : trainee
Qualification	pilot : student
Events
Anomaly	aircraft equipment problem : less severe conflict : nmac non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 50 vertical : 50
Supplementary
Primary Problem	Aircraft

Narrative:

I departed salina with a student to a local practice area. On our way back in, we attempted to get ATIS information, but couldn't hear it. We then tried to just call the tower. We realized there was a problem with the radio, we cold not hear or broadcast anything. I then attempted to troubleshoot. I couldn't get the radio to work, so I decided to head back toward the airport while broadcasting in the blind. As I approached the airport, I started squawking 7600. When I reached the airport, I remained outside of the traffic pattern and looked for light gun signals. I didn't receive any light signals, so I tried to carefully enter the pattern on downwind while still rocking my wings. I saw only 1 airplane in the pattern. As I turned base, I guess I just missed another airplane in a pattern for runway 12. Not knowing this, I continued in the pattern to final. On final, I descended for a low approach over the runway in an attempt to get the tower's attention. After the flight, tower told me to call them. I called and they told me about the near miss.

Original NASA ASRS Text

Title: 2 SMA'S HAD AN NMAC IN THE SLN TFC PATTERN. THE RPTR WAS NORDO. ACFT EQUIP PROB RADIO FAILURE FROM UNK CAUSE.

Narrative: I DEPARTED SALINA WITH A STUDENT TO A LCL PRACTICE AREA. ON OUR WAY BACK IN, WE ATTEMPTED TO GET ATIS INFO, BUT COULDN'T HEAR IT. WE THEN TRIED TO JUST CALL THE TWR. WE REALIZED THERE WAS A PROB WITH THE RADIO, WE COLD NOT HEAR OR BROADCAST ANYTHING. I THEN ATTEMPTED TO TROUBLESHOOT. I COULDN'T GET THE RADIO TO WORK, SO I DECIDED TO HEAD BACK TOWARD THE ARPT WHILE BROADCASTING IN THE BLIND. AS I APCHED THE ARPT, I STARTED SQUAWKING 7600. WHEN I REACHED THE ARPT, I REMAINED OUTSIDE OF THE TFC PATTERN AND LOOKED FOR LIGHT GUN SIGNALS. I DIDN'T RECEIVE ANY LIGHT SIGNALS, SO I TRIED TO CAREFULLY ENTER THE PATTERN ON DOWNWIND WHILE STILL ROCKING MY WINGS. I SAW ONLY 1 AIRPLANE IN THE PATTERN. AS I TURNED BASE, I GUESS I JUST MISSED ANOTHER AIRPLANE IN A PATTERN FOR RWY 12. NOT KNOWING THIS, I CONTINUED IN THE PATTERN TO FINAL. ON FINAL, I DSNDED FOR A LOW APCH OVER THE RWY IN AN ATTEMPT TO GET THE TWR'S ATTN. AFTER THE FLT, TWR TOLD ME TO CALL THEM. I CALLED AND THEY TOLD ME ABOUT THE NEAR MISS.

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.