LJ24 and airbus have an near midair collision in ZLA class east.

Attributes
ACN	520251
Time
Date	200108
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zla.artcc
State Reference	CA
Altitude	msl bound lower : 16000 msl bound upper : 16500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla.artcc
Operator	general aviation : corporate
Make Model Name	Learjet 24
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Route In Use	enroute other
Flight Plan	None
Aircraft 2
Controlling Facilities	artcc : zla.artcc
Operator	common carrier : air carrier
Make Model Name	Airbus Industrie Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain
Qualification	pilot : multi engine pilot : atp pilot : instrument
Experience	flight time last 90 days : 60 flight time total : 6700 flight time type : 700
ASRS Report	520251
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac
Independent Detector	atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory flight crew : took evasive action flight crew : took precautionary avoidance action
Miss Distance	horizontal : 100 vertical : 100
Supplementary
Problem Areas	FAA Airspace Structure Flight Crew Human Performance
Primary Problem	Airspace Structure

Narrative:

While at 16500 ft at cruise flight, we received from ATC a report of traffic, an airbus at 11 O'clock position, and 15 mi and climbing. Also, ATC advised the airbus of our position. The airbus acknowledged and stated that he had the traffic on TCASII, but not in sight and that they were going to level off at 16000 ft. ATC acknowledged the transmission and advised the airbus that once he had us in sight, he was cleared to continue with his climb. Around under 1 min, we saw the airbus approaching us between 9-12 O'clock position and about 3 mi from our position, and what it looked to be right at our altitude. About 20 seconds passed and I started to make a 30 degree bank left turn, and as the turn progressed the airbus continued to become closer, so a 90 degree bank was made to avoid a collision. I calculate that the estimated distance between the 2 aircraft was approximately 100 ft. After we passed the airbus, the airbus crew started complaining to ATC of the incident. The only thing that we stated to ATC was that a 90 degree bank left turn had to be made to avoid the collision.

Original NASA ASRS Text

Title: LJ24 AND AIRBUS HAVE AN NMAC IN ZLA CLASS E.

Narrative: WHILE AT 16500 FT AT CRUISE FLT, WE RECEIVED FROM ATC A RPT OF TFC, AN AIRBUS AT 11 O'CLOCK POS, AND 15 MI AND CLBING. ALSO, ATC ADVISED THE AIRBUS OF OUR POS. THE AIRBUS ACKNOWLEDGED AND STATED THAT HE HAD THE TFC ON TCASII, BUT NOT IN SIGHT AND THAT THEY WERE GOING TO LEVEL OFF AT 16000 FT. ATC ACKNOWLEDGED THE XMISSION AND ADVISED THE AIRBUS THAT ONCE HE HAD US IN SIGHT, HE WAS CLRED TO CONTINUE WITH HIS CLB. AROUND UNDER 1 MIN, WE SAW THE AIRBUS APCHING US BTWN 9-12 O'CLOCK POS AND ABOUT 3 MI FROM OUR POS, AND WHAT IT LOOKED TO BE RIGHT AT OUR ALT. ABOUT 20 SECONDS PASSED AND I STARTED TO MAKE A 30 DEG BANK L TURN, AND AS THE TURN PROGRESSED THE AIRBUS CONTINUED TO BECOME CLOSER, SO A 90 DEG BANK WAS MADE TO AVOID A COLLISION. I CALCULATE THAT THE ESTIMATED DISTANCE BTWN THE 2 ACFT WAS APPROX 100 FT. AFTER WE PASSED THE AIRBUS, THE AIRBUS CREW STARTED COMPLAINING TO ATC OF THE INCIDENT. THE ONLY THING THAT WE STATED TO ATC WAS THAT A 90 DEG BANK L TURN HAD TO BE MADE TO AVOID THE COLLISION.

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.