Hs 125-800 captain experienced 2 airborne conflicts in the same relative geographical location in class east airspace just outside of class B airspace of lax, and class C airspace of bur and vny airspaces.

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Attributes
ACN	546630
Time
Date	200205
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	intersection : toaks
State Reference	CA
Altitude	msl bound lower : 5700 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sct.tracon tower : rfd.tower
Operator	general aviation : corporate
Make Model Name	BAe 125 Series 800
Operating Under FAR Part	Part 91
Navigation In Use	other other vortac
Flight Phase	cruise : enroute altitude change cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : sct.tracon
Make Model Name	Caravan 1 208A
Flight Phase	cruise : level
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 2500
ASRS Report	546630
Person 2
Affiliation	company : corporate
Function	flight crew : first officer
Events
Anomaly	conflict : airborne critical other anomaly other
Independent Detector	atc equipment other atc equipment : radar aircraft equipment : tcas other flight crewa
Resolutory Action	controller : issued advisory none taken : anomaly accepted none taken : insufficient time
Miss Distance	vertical : 500
Supplementary
Problem Areas	Airspace Structure ATC Human Performance Flight Crew Human Performance
Primary Problem	Airspace Structure

Narrative:

On arrival to bur near toaks intersection, level at 9000 ft, received RA and aural warning 'monitor vertical speed.' other aircraft was working socal approach, as we were, we each received TA's and had visual contact. Time was about XA00. Departed vny airport. Later that day, was climbing out of 5700 ft MSL for ATC assigned altitude of 6000 ft MSL. Received 'reduce climb' RA. Traffic passed behind us. Were given advisories and other aircraft was with socal approach. Location of this RA was lax 320 degree radial at 17 DME. Lax airspace is very crowded. These 2 resolutions occurred near the same geographical location. This is what got my attention. I have heard in the past of several midairs just west of smo and south of lgb. I'm reporting this in case there is a trend in RA's near this area. Both occurred in class east airspace.

Original NASA ASRS Text

Title: HS 125-800 CAPT EXPERIENCED 2 AIRBORNE CONFLICTS IN THE SAME RELATIVE GEOGRAPHICAL LOCATION IN CLASS E AIRSPACE JUST OUTSIDE OF CLASS B AIRSPACE OF LAX, AND CLASS C AIRSPACE OF BUR AND VNY AIRSPACES.

Narrative: ON ARR TO BUR NEAR TOAKS INTXN, LEVEL AT 9000 FT, RECEIVED RA AND AURAL WARNING 'MONITOR VERT SPD.' OTHER ACFT WAS WORKING SOCAL APCH, AS WE WERE, WE EACH RECEIVED TA'S AND HAD VISUAL CONTACT. TIME WAS ABOUT XA00. DEPARTED VNY ARPT. LATER THAT DAY, WAS CLBING OUT OF 5700 FT MSL FOR ATC ASSIGNED ALT OF 6000 FT MSL. RECEIVED 'REDUCE CLB' RA. TFC PASSED BEHIND US. WERE GIVEN ADVISORIES AND OTHER ACFT WAS WITH SOCAL APCH. LOCATION OF THIS RA WAS LAX 320 DEG RADIAL AT 17 DME. LAX AIRSPACE IS VERY CROWDED. THESE 2 RESOLUTIONS OCCURRED NEAR THE SAME GEOGRAPHICAL LOCATION. THIS IS WHAT GOT MY ATTN. I HAVE HEARD IN THE PAST OF SEVERAL MIDAIRS JUST W OF SMO AND S OF LGB. I'M RPTING THIS IN CASE THERE IS A TREND IN RA'S NEAR THIS AREA. BOTH OCCURRED IN CLASS E AIRSPACE.

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.