B737-300 crew and a single engine cessna had an near midair collision going into bur.

Attributes
ACN	604355
Time
Date	200401
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bur.airport
State Reference	CA
Altitude	msl single value : 2700
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bur.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : 8
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : bur.tower
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Person 1
Affiliation	company : air carrier
Function	controller : local flight crew : first officer
Qualification	pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 240 flight time total : 15000 flight time type : 3700
ASRS Report	604355
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 275 flight time total : 9000 flight time type : 7000
ASRS Report	604547
Events
Anomaly	conflict : nmac non adherence : required legal separation non adherence : published procedure non adherence : far
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	flight crew : took evasive action other
Consequence	other
Miss Distance	horizontal : 400 vertical : 300
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Just after checking with bur tower (118.7) and receiving our landing clearance, descending from 3000 ft at approximately 2700 ft, we received a TA (monitor vertical speed) and almost immediately an RA (climb), showing traffic at zero altitude deviation and climbing. We climbed to approximately 3050 ft and turned 20 degrees to the right to avoid the collision. After that, we started our descent and landed on runway 8 with no further incident. Supplemental information from acn 604547: received a TA 'monitor vertical speed.' looked to determine location of threat and saw it was reported at zero altitude difference, climbing, to immediate 9 O'clock position. In that approximately 2 seconds, received an RA commanding a climb. I initiated a climb (approximately 350 ft) and approximately 20 degree right turn while looking out the left side. A light single engine cessna passed just below and aft.

Original NASA ASRS Text

Title: B737-300 CREW AND A SINGLE ENG CESSNA HAD AN NMAC GOING INTO BUR.

Narrative: JUST AFTER CHKING WITH BUR TWR (118.7) AND RECEIVING OUR LNDG CLRNC, DSNDING FROM 3000 FT AT APPROX 2700 FT, WE RECEIVED A TA (MONITOR VERT SPD) AND ALMOST IMMEDIATELY AN RA (CLB), SHOWING TFC AT ZERO ALTDEV AND CLBING. WE CLBED TO APPROX 3050 FT AND TURNED 20 DEGS TO THE R TO AVOID THE COLLISION. AFTER THAT, WE STARTED OUR DSCNT AND LANDED ON RWY 8 WITH NO FURTHER INCIDENT. SUPPLEMENTAL INFO FROM ACN 604547: RECEIVED A TA 'MONITOR VERT SPD.' LOOKED TO DETERMINE LOCATION OF THREAT AND SAW IT WAS RPTED AT ZERO ALT DIFFERENCE, CLBING, TO IMMEDIATE 9 O'CLOCK POS. IN THAT APPROX 2 SECONDS, RECEIVED AN RA COMMANDING A CLB. I INITIATED A CLB (APPROX 350 FT) AND APPROX 20 DEG R TURN WHILE LOOKING OUT THE L SIDE. A LIGHT SINGLE ENG CESSNA PASSED JUST BELOW AND AFT.

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.