Near midair collision in VFR conditions. No radar advisory.

Attributes
ACN	258218
Time
Date	199312
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : eca
State Reference	CA
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : smf tracon : sck
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Route In Use	approach : visual
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	other personnel other
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 65 flight time total : 7000 flight time type : 600
ASRS Report	258218
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 300 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were doing timed turns north/south and south/north. Rolling out of one of the turns to the north, I saw the high wing small aircraft at 12 O'clock about 500 ft away. The small aircraft turned right and we descended. TRACON was being monitored and the small aircraft pilot informed TRACON of the event. Neither stockton nor sacramento tracons pointed us out to the small aircraft. The stockton controller said he saw no other aircraft in the vicinity of the small aircraft. We had left holding at orang intersection and terminated contact with stockton approximately 10 mins previously. This is the same location of a midair about a yr ago. The small aircraft pilot said on the phone that he had another near midair collision at wager intersection later in the day that we had the near midair collision. Maybe there is a problem with radar coverage in that area, as it is on the dividing line between sac/sck tracons.

Original NASA ASRS Text

Title: NMAC IN VFR CONDITIONS. NO RADAR ADVISORY.

Narrative: WE WERE DOING TIMED TURNS N/S AND S/N. ROLLING OUT OF ONE OF THE TURNS TO THE N, I SAW THE HIGH WING SMA AT 12 O'CLOCK ABOUT 500 FT AWAY. THE SMA TURNED R AND WE DSNDED. TRACON WAS BEING MONITORED AND THE SMA PLT INFORMED TRACON OF THE EVENT. NEITHER STOCKTON NOR SACRAMENTO TRACONS POINTED US OUT TO THE SMA. THE STOCKTON CTLR SAID HE SAW NO OTHER ACFT IN THE VICINITY OF THE SMA. WE HAD LEFT HOLDING AT ORANG INTXN AND TERMINATED CONTACT WITH STOCKTON APPROX 10 MINS PREVIOUSLY. THIS IS THE SAME LOCATION OF A MIDAIR ABOUT A YR AGO. THE SMA PLT SAID ON THE PHONE THAT HE HAD ANOTHER NMAC AT WAGER INTXN LATER IN THE DAY THAT WE HAD THE NMAC. MAYBE THERE IS A PROB WITH RADAR COVERAGE IN THAT AREA, AS IT IS ON THE DIVIDING LINE BTWN SAC/SCK TRACONS.

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.