Near midair collision in proximity of class B airspace.

Attributes
ACN	313805
Time
Date	199508
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : vny airport : bur
State Reference	CA
Altitude	msl bound lower : 3800 msl bound upper : 3800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lax tower : vny
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	313805
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	313804
Events
Anomaly	conflict : nmac non adherence : far non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 200 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

At PM48 local, we almost had a mid air collision 4 DME northwest vny VOR at 3800 ft MSL. We were descending to 3500 ft, heading 140 degree for a left base to a visual approach runway 8 at bur. We were at 200 KTS, descending through 4000 ft (altimeter 29.87) and received a TA on TCASII, 12 O'clock, 2.5 mi, 1000 ft below us and he was climbing. ATC pointed out the traffic as a pop-up VFR departure off vny that had us in sight. We still had not seen him. We got an RA to climb, the captain (PF) disconnected autoplt and initiated a climb. The RA showed the other aircraft as climbing through our altitude and head- on (approximately 340 degree heading). The PF saw the aircraft and leveled off so as to not climb into the other aircraft's flight path. The learjet passed off our left about 200 ft. Supplemental information from acn 313804: we saw a learjet at 1130 and .5 mi rapidly climbing on a 320 degree heading. I aborted the climb and leveled off at 3800 ft. The lear passed off our left 200 ft horizontally and 200 ft vertically. We inquired about the lear and approach said he was a VFR departure off vny.

Original NASA ASRS Text

Title: NMAC IN PROX OF CLASS B AIRSPACE.

Narrative: AT PM48 LCL, WE ALMOST HAD A MID AIR COLLISION 4 DME NW VNY VOR AT 3800 FT MSL. WE WERE DSNDING TO 3500 FT, HDG 140 DEG FOR A L BASE TO A VISUAL APCH RWY 8 AT BUR. WE WERE AT 200 KTS, DSNDING THROUGH 4000 FT (ALTIMETER 29.87) AND RECEIVED A TA ON TCASII, 12 O'CLOCK, 2.5 MI, 1000 FT BELOW US AND HE WAS CLBING. ATC POINTED OUT THE TFC AS A POP-UP VFR DEP OFF VNY THAT HAD US IN SIGHT. WE STILL HAD NOT SEEN HIM. WE GOT AN RA TO CLB, THE CAPT (PF) DISCONNECTED AUTOPLT AND INITIATED A CLB. THE RA SHOWED THE OTHER ACFT AS CLBING THROUGH OUR ALT AND HEAD- ON (APPROX 340 DEG HDG). THE PF SAW THE ACFT AND LEVELED OFF SO AS TO NOT CLB INTO THE OTHER ACFT'S FLT PATH. THE LEARJET PASSED OFF OUR L ABOUT 200 FT. SUPPLEMENTAL INFO FROM ACN 313804: WE SAW A LEARJET AT 1130 AND .5 MI RAPIDLY CLBING ON A 320 DEG HDG. I ABORTED THE CLB AND LEVELED OFF AT 3800 FT. THE LEAR PASSED OFF OUR L 200 FT HORIZLY AND 200 FT VERTLY. WE INQUIRED ABOUT THE LEAR AND APCH SAID HE WAS A VFR DEP OFF VNY.

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.