A B737 flight crew is cleared for a visual approach into bur. The flight crew received a GPWS and a ...

Attributes
ACN	599856
Time
Date	200311
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bur.airport
State Reference	CA
Altitude	msl single value : 5000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	approach : visual arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : sct.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise : level
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 190 flight time total : 5500 flight time type : 1800
ASRS Report	599856
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : nmac other spatial deviation
Independent Detector	aircraft equipment : gpws aircraft equipment : tcas other controllera other flight crewa other flight crewb other other : 3
Resolutory Action	flight crew : took evasive action flight crew : took precautionary avoidance action
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

On heading 110 degrees by socal at 5000 ft we were told to expect visual approach in 5 mi. The captain had the terrain display on. I could see the mountains out the right side with city lights in the background. I made a comment to the captain that we looked close to the mountains. We had runway 15 and the VASI in sight. Socal cleared us for the visual approach to runway 15 and I started a right turn to follow a road with lights that set us up for a dogleg to runway 15. I looked down at the radar and saw the top number red 53. I had not started to descend yet. We got a terrain followed by a climb command while I was looking at the radar. This all took place within 5 seconds after socal cleared us for the visual approach. The captain immediately took the aircraft and did a maximum climb and right turn until we could no longer see the mountains and the display was green again. He stopped the climb and gave me the aircraft. He told socal what just happened. I could still see the runway and that we were indeed clear of the mountains. I asked for flaps 5 degrees and gear down. We then got a TA with an RA and climb command. The captain again took the aircraft and did a maximum climb. I heard socal tell an aircraft of our position and the aircraft said he had company in sight and were turning right. I looked at the TCASII display and saw the red with a 3. I told the captain it looked like the conflict aircraft was passing just behind us. I never saw the conflict aircraft visually, but the captain said he had him. The captain stopped the climb after the aircraft passed behind us and again gave me the controls. He told ATC to mark the tape for review once we were on the ground and asked for vectors to join the ILS to runway 8. Upon landing, after the checklist was completed, the captain told the passenger what went on. He called socal and asked me to get the chief pilot on call through dispatch. The equipment (ground proximity and TCASII) worked perfectly as did CRM with the two of us.

Original NASA ASRS Text

Title: A B737 FLT CREW IS CLRED FOR A VISUAL APCH INTO BUR. THE FLT CREW RECEIVED A GPWS AND A TCASII WARNING.

Narrative: ON HEADING 110 DEGS BY SOCAL AT 5000 FT WE WERE TOLD TO EXPECT VISUAL APCH IN 5 MI. THE CAPT HAD THE TERRAIN DISPLAY ON. I COULD SEE THE MOUNTAINS OUT THE R SIDE WITH CITY LIGHTS IN THE BACKGROUND. I MADE A COMMENT TO THE CAPT THAT WE LOOKED CLOSE TO THE MOUNTAINS. WE HAD RWY 15 AND THE VASI IN SIGHT. SOCAL CLRED US FOR THE VISUAL APCH TO RWY 15 AND I STARTED A R TURN TO FOLLOW A ROAD WITH LIGHTS THAT SET US UP FOR A DOGLEG TO RWY 15. I LOOKED DOWN AT THE RADAR AND SAW THE TOP NUMBER RED 53. I HAD NOT STARTED TO DSND YET. WE GOT A TERRAIN FOLLOWED BY A CLB COMMAND WHILE I WAS LOOKING AT THE RADAR. THIS ALL TOOK PLACE WITHIN 5 SECONDS AFTER SOCAL CLRED US FOR THE VISUAL APCH. THE CAPT IMMEDIATELY TOOK THE ACFT AND DID A MAX CLB AND R TURN UNTIL WE COULD NO LONGER SEE THE MOUNTAINS AND THE DISPLAY WAS GREEN AGAIN. HE STOPPED THE CLB AND GAVE ME THE ACFT. HE TOLD SOCAL WHAT JUST HAPPENED. I COULD STILL SEE THE RWY AND THAT WE WERE INDEED CLR OF THE MOUNTAINS. I ASKED FOR FLAPS 5 DEGS AND GEAR DOWN. WE THEN GOT A TA WITH AN RA AND CLB COMMAND. THE CAPT AGAIN TOOK THE ACFT AND DID A MAX CLB. I HEARD SOCAL TELL AN ACFT OF OUR POS AND THE ACFT SAID HE HAD COMPANY IN SIGHT AND WERE TURNING R. I LOOKED AT THE TCASII DISPLAY AND SAW THE RED WITH A 3. I TOLD THE CAPT IT LOOKED LIKE THE CONFLICT ACFT WAS PASSING JUST BEHIND US. I NEVER SAW THE CONFLICT ACFT VISUALLY, BUT THE CAPT SAID HE HAD HIM. THE CAPT STOPPED THE CLB AFTER THE ACFT PASSED BEHIND US AND AGAIN GAVE ME THE CTLS. HE TOLD ATC TO MARK THE TAPE FOR REVIEW ONCE WE WERE ON THE GND AND ASKED FOR VECTORS TO JOIN THE ILS TO RWY 8. UPON LNDG, AFTER THE CHKLIST WAS COMPLETED, THE CAPT TOLD THE PAX WHAT WENT ON. HE CALLED SOCAL AND ASKED ME TO GET THE CHIEF PLT ON CALL THROUGH DISPATCH. THE EQUIP (GND PROX AND TCASII) WORKED PERFECTLY AS DID CRM WITH THE TWO OF US.

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.

A B737 flight crew is cleared for a visual approach into bur. The flight crew received a GPWS and a TCASII warning.