Potential conflict between air carrier medium large transport and GA small aircraft.

Attributes
ACN	97456
Time
Date	198811
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pmd
State Reference	CA
Altitude	msl bound lower : 8000 msl bound upper : 8800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	military facility : edw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Route In Use	arrival star : star
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	climbout : intermediate altitude
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 140 flight time total : 15000 flight time type : 200
ASRS Report	97456
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	conflict : airborne less severe non adherence : far
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 1500 vertical : 800
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

VFR aircraft heading 090 degree at 8000' (incorrect VFR altitude and even vs. Odd). Traffic initially called at 12 O'clock, 7800' unverified at 6 mi. We reported 'no contact.' traffic then reported at 12 O'clock 8000' and we were given a left 20 degree turn (new heading 225 degree); 15 seconds (approximately) later we were given a heading of 180 degree and 'traffic conflict alert.' at that point other aircraft at 1.5 to 2 mi, I saw other aircraft on a collision bearing. The left turn vector had lined us up perfectly! At that point I disconnected autoplt and autothrottle and made an evasive maneuver in the vertical and a turn reversal to the right. We passed 800' (8800' MSL) above and approximately 1/4 mi south of the small aircraft. We immediately advised approach of our deviation and rejoined the arrival course and altitude as cleared. The eastern portion of the la basin continues to be the most dangerous airspace on our system.

Original NASA ASRS Text

Title: POTENTIAL CONFLICT BETWEEN ACR MLG AND GA SMA.

Narrative: VFR ACFT HDG 090 DEG AT 8000' (INCORRECT VFR ALT AND EVEN VS. ODD). TFC INITIALLY CALLED AT 12 O'CLOCK, 7800' UNVERIFIED AT 6 MI. WE RPTED 'NO CONTACT.' TFC THEN RPTED AT 12 O'CLOCK 8000' AND WE WERE GIVEN A LEFT 20 DEG TURN (NEW HDG 225 DEG); 15 SECONDS (APPROX) LATER WE WERE GIVEN A HDG OF 180 DEG AND 'TFC CONFLICT ALERT.' AT THAT POINT OTHER ACFT AT 1.5 TO 2 MI, I SAW OTHER ACFT ON A COLLISION BEARING. THE L TURN VECTOR HAD LINED US UP PERFECTLY! AT THAT POINT I DISCONNECTED AUTOPLT AND AUTOTHROTTLE AND MADE AN EVASIVE MANEUVER IN THE VERT AND A TURN REVERSAL TO THE R. WE PASSED 800' (8800' MSL) ABOVE AND APPROX 1/4 MI S OF THE SMA. WE IMMEDIATELY ADVISED APCH OF OUR DEVIATION AND REJOINED THE ARR COURSE AND ALT AS CLRED. THE EASTERN PORTION OF THE LA BASIN CONTINUES TO BE THE MOST DANGEROUS AIRSPACE ON OUR SYS.

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.