Close proximity 2 GA small aircraft's 8 north of crq.

Attributes
ACN	182647
Time
Date	199106
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ocn
State Reference	CA
Altitude	msl bound lower : 5100 msl bound upper : 5500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zse
Operator	general aviation : instructional
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	other
Route In Use	enroute airway : v208
Flight Plan	None
Aircraft 2
Make Model Name	Small Aircraft, Low Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Flight Plan	None
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 80 flight time total : 450
ASRS Report	182647
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : student
Events
Anomaly	conflict : nmac non adherence : far other spatial deviation
Independent Detector	other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We were on an IFR training flight holding in VFR conditions at 5500' MSL over vista intersection. We had just turned on the outbnd leg when I saw the other aircraft approaching at approximately 80 degree angle from the right also at 5500'. He was westbound and about 1/2 mi away. We waited before turning see his intentions, but he never saw us. We did a hard, negative-G dive to avoid collision. Closest approach was approximately 300' horizontal, unknown vertical. We recovered from the dive at 5100' MSL and began to circle to find the small aircraft Y. He continued westbound, course and altitude unchanged. Primary cause was probably failure of both pilots to see and avoid in perfect VFR conditions (30 mi visibility, no clouds). Also, the other aircraft was at an odd + 500 altitude and westbound.

Original NASA ASRS Text

Title: CLOSE PROX 2 GA SMA'S 8 NORTH OF CRQ.

Narrative: WE WERE ON AN IFR TRNING FLT HOLDING IN VFR CONDITIONS AT 5500' MSL OVER VISTA INTXN. WE HAD JUST TURNED ON THE OUTBND LEG WHEN I SAW THE OTHER ACFT APCHING AT APPROX 80 DEG ANGLE FROM THE RIGHT ALSO AT 5500'. HE WAS WBND AND ABOUT 1/2 MI AWAY. WE WAITED BEFORE TURNING SEE HIS INTENTIONS, BUT HE NEVER SAW US. WE DID A HARD, NEGATIVE-G DIVE TO AVOID COLLISION. CLOSEST APCH WAS APPROX 300' HORIZ, UNKNOWN VERT. WE RECOVERED FROM THE DIVE AT 5100' MSL AND BEGAN TO CIRCLE TO FIND THE SMA Y. HE CONTINUED WBND, COURSE AND ALT UNCHANGED. PRIMARY CAUSE WAS PROBABLY FAILURE OF BOTH PLTS TO SEE AND AVOID IN PERFECT VFR CONDITIONS (30 MI VISIBILITY, NO CLOUDS). ALSO, THE OTHER ACFT WAS AT AN ODD + 500 ALT AND WBND.

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.