Near midair collision between an small aircraft sel climbing out and an experimental small aircraft sel descending toward the airport traffic pattern. Both aircraft took evasive action turns to assure separation.

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Attributes
ACN	340348
Time
Date	199607
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ryn
State Reference	AZ
Altitude	msl bound lower : 4000 msl bound upper : 4000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : ryn
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Aircraft 2
Make Model Name	Experimental
Operating Under FAR Part	Part 91
Flight Phase	cruise other descent other
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 28 flight time total : 2946 flight time type : 2500
ASRS Report	340348
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 500 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

As I departed ryan field on runway 6, I heard an aircraft, experimental small aircraft Y, call the tower advising that he was 10 mi southeast of ryan inbound. I had requested and received a r- hand departure sbound. Small aircraft Y was instructed to enter right traffic for runway 6R, with a 45 degree entry. After departing on a 45 degree turn, I climbed to 3200 ft (pattern altitude) then turned to a heading of 180 degrees still climbing. At about 4000 ft, I finally saw small aircraft Y about 500 ft or more from me and about 100 ft higher. At that point, he was making a sharp turn to the right to avoid my flight path and I did likewise to make sure he saw me. Shortly thereafter, I overheard the pilot of the small aircraft Y advise the tower that he had missed me by 200 ft. I do not believe we were that close and that we were 500 ft or more apart when evasive action was taken. Perhaps this situation could have been avoided had ryan tower had radar capability. I had not contacted tucson approach as I was more than 10 SM from tucson international and was still monitoring ryan tower at the time of the incident.

Original NASA ASRS Text

Title: NMAC BTWN AN SMA SEL CLBING OUT AND AN EXPERIMENTAL SMA SEL DSNDING TOWARD THE ARPT TFC PATTERN. BOTH ACFT TOOK EVASIVE ACTION TURNS TO ASSURE SEPARATION.

Narrative: AS I DEPARTED RYAN FIELD ON RWY 6, I HEARD AN ACFT, EXPERIMENTAL SMA Y, CALL THE TWR ADVISING THAT HE WAS 10 MI SE OF RYAN INBOUND. I HAD REQUESTED AND RECEIVED A R- HAND DEP SBOUND. SMA Y WAS INSTRUCTED TO ENTER R TFC FOR RWY 6R, WITH A 45 DEG ENTRY. AFTER DEPARTING ON A 45 DEG TURN, I CLBED TO 3200 FT (PATTERN ALT) THEN TURNED TO A HDG OF 180 DEGS STILL CLBING. AT ABOUT 4000 FT, I FINALLY SAW SMA Y ABOUT 500 FT OR MORE FROM ME AND ABOUT 100 FT HIGHER. AT THAT POINT, HE WAS MAKING A SHARP TURN TO THE R TO AVOID MY FLT PATH AND I DID LIKEWISE TO MAKE SURE HE SAW ME. SHORTLY THEREAFTER, I OVERHEARD THE PLT OF THE SMA Y ADVISE THE TWR THAT HE HAD MISSED ME BY 200 FT. I DO NOT BELIEVE WE WERE THAT CLOSE AND THAT WE WERE 500 FT OR MORE APART WHEN EVASIVE ACTION WAS TAKEN. PERHAPS THIS SIT COULD HAVE BEEN AVOIDED HAD RYAN TWR HAD RADAR CAPABILITY. I HAD NOT CONTACTED TUCSON APCH AS I WAS MORE THAN 10 SM FROM TUCSON INTL AND WAS STILL MONITORING RYAN TWR AT THE TIME OF THE INCIDENT.

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.