Cpr X had airborne conflict with air carrier X. Possible less than standard separation system error.

Attributes
ACN	177905
Time
Date	199105
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sxc
State Reference	CA
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sna tracon : n90
Operator	general aviation : corporate
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 8300 flight time type : 1500
ASRS Report	177950
Person 2
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 18000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

TCAS development flight for installation on cpr X. We were cleared from lax to wjf via flipr departure sxc control extension 1177, ficky, 1177 sxc, lax, pmd, wjf. We had completed our TCAS testing and we were proceeding via our filed flight plan at 10000'. Approach sxc, center asked if we were returning to lax. We said no, we are going to wjf. Center acknowledged and handed us off to coast approach. As we turned on the sxc-lax leg, air carrier Y passed left to right at about 3 NM in front of us at our altitude. As air carrier Y passed off our right, coast approach wanted to confirm that we had a visibility on the aircraft. After the MD80 cleared we were given a right turn and a reclrnc to wjf via sli V459, expect V459 berri pmd. Obviously coast didn't expect us to turn left on our filed route nor did he know we were going to wjf!

Original NASA ASRS Text

Title: CPR X HAD AIRBORNE CONFLICT WITH ACR X. POSSIBLE LESS THAN STANDARD SEPARATION SYSTEM ERROR.

Narrative: TCAS DEVELOPMENT FLT FOR INSTALLATION ON CPR X. WE WERE CLRED FROM LAX TO WJF VIA FLIPR DEP SXC CTL EXTENSION 1177, FICKY, 1177 SXC, LAX, PMD, WJF. WE HAD COMPLETED OUR TCAS TESTING AND WE WERE PROCEEDING VIA OUR FILED FLT PLAN AT 10000'. APCH SXC, CENTER ASKED IF WE WERE RETURNING TO LAX. WE SAID NO, WE ARE GOING TO WJF. CENTER ACKNOWLEDGED AND HANDED US OFF TO COAST APCH. AS WE TURNED ON THE SXC-LAX LEG, ACR Y PASSED LEFT TO RIGHT AT ABOUT 3 NM IN FRONT OF US AT OUR ALT. AS ACR Y PASSED OFF OUR RIGHT, COAST APCH WANTED TO CONFIRM THAT WE HAD A VIS ON THE ACFT. AFTER THE MD80 CLRED WE WERE GIVEN A RIGHT TURN AND A RECLRNC TO WJF VIA SLI V459, EXPECT V459 BERRI PMD. OBVIOUSLY COAST DIDN'T EXPECT US TO TURN LEFT ON OUR FILED RTE NOR DID HE KNOW WE WERE GOING TO WJF!

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.