Near midair collision between 2 GA-small aircraft's. Neither saw the other until they were within se...

Attributes
ACN	90572
Time
Date	198807
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : trk
State Reference	CA
Altitude	msl bound lower : 8600 msl bound upper : 8600
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zoa tracon : sac
Operator	other
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Flight Plan	VFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : commercial pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 2600 flight time type : 120
ASRS Report	90572
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

I was maintaining a visual scan while attempting to contact ZOA for VFR advisories while on a VFR flight from rno to woodland watts, ca. I became aware of the small aircraft and at the same instant I passed over the top of him. We were at the same approximately altitude and on the same heading, +/-10 degrees. I believe the small aircraft was partially camouflaged by the mountainous terrain. In any case, there was no silhouette against the sky of his airplane to assist visual contact. There was no time to react or change altitude or flight paths. Corrective action: increased scan. Incident was reported to sac TRACON by second aircraft. Callback conversation with reporter revealed the following: reporter had been terminated by rno center and was in process of contacting ZOA at time of sighting. As he began his descent he was handed off to sac and second aircraft came on frequency with statement, '(identification #) you'll be hearing from me.' supervisor gave reporter phone # and asked to call after landing. Reporter gave supervisor the basic information about the incident and was told it would be sent on to safety officer. To date reporter has heard nothing.

Original NASA ASRS Text

Title: NMAC BETWEEN 2 GA-SMA'S. NEITHER SAW THE OTHER UNTIL THEY WERE WITHIN SECONDS OF MISSING EACH OTHER. NO TIME FOR EVASIVE ACTION.

Narrative: I WAS MAINTAINING A VISUAL SCAN WHILE ATTEMPTING TO CONTACT ZOA FOR VFR ADVISORIES WHILE ON A VFR FLT FROM RNO TO WOODLAND WATTS, CA. I BECAME AWARE OF THE SMA AND AT THE SAME INSTANT I PASSED OVER THE TOP OF HIM. WE WERE AT THE SAME APPROX ALT AND ON THE SAME HDG, +/-10 DEGS. I BELIEVE THE SMA WAS PARTIALLY CAMOUFLAGED BY THE MOUNTAINOUS TERRAIN. IN ANY CASE, THERE WAS NO SILHOUETTE AGAINST THE SKY OF HIS AIRPLANE TO ASSIST VISUAL CONTACT. THERE WAS NO TIME TO REACT OR CHANGE ALT OR FLT PATHS. CORRECTIVE ACTION: INCREASED SCAN. INCIDENT WAS RPTED TO SAC TRACON BY SECOND ACFT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: REPORTER HAD BEEN TERMINATED BY RNO CENTER AND WAS IN PROCESS OF CONTACTING ZOA AT TIME OF SIGHTING. AS HE BEGAN HIS DSCNT HE WAS HANDED OFF TO SAC AND SECOND ACFT CAME ON FREQ WITH STATEMENT, '(ID #) YOU'LL BE HEARING FROM ME.' SUPVR GAVE RPTR PHONE # AND ASKED TO CALL AFTER LNDG. RPTR GAVE SUPVR THE BASIC INFO ABOUT THE INCIDENT AND WAS TOLD IT WOULD BE SENT ON TO SAFETY OFFICER. TO DATE RPTR HAS HEARD NOTHING.

Data retrieved from NASA's ASRS site as of August 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.

Near midair collision between 2 GA-small aircraft's. Neither saw the other until they were within seconds of missing each other. No time for evasive action.