TCASII RA. - NASA ASRS

Attributes
ACN	278631
Time
Date	199407
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sjc
State Reference	CA
Altitude	msl bound lower : 800 msl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sjc
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	approach : straight in approach : visual
Flight Plan	IFR
Aircraft 2
Operator	general aviation : instructional
Make Model Name	Cessna Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 160 flight time total : 10000
ASRS Report	278631
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action flight crew : exited adverse environment other
Consequence	Other
Miss Distance	horizontal : 1000
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

We were on a straight-in, visual approach to runway 30L at sjc airport, cleared by sjc tower (ajc). Our distance on final approach was about 2-4 mi from the runway. Tower had informed us that we would see traffic (cessna sel) on a left base leg turning final approach for runway 29. The 'WX' conditions were real good VFR and good visibility. The time of day was about XA20 pm local with the sun low in the sky. This worsened our slant visibility. Anyway, we're lined up with the runway, stabilized in the landing confign and 'cleared to land on runway 30L.' the cessna was either on his left base leg turning final to runway 29 or already on final drifting over our direction. We had him in sight. Next our TCASII was blaring 'climb, climb, climb' RA following the TA, 'traffic, traffic, traffic.' we followed the RA maneuver and advised the tower we were 'going around' in an evasive climbing right turn. The cessna appeared to be 1000-1300 ft, horizontal to our left. Too close for safety and comfort. Everything worked out fine, but recommend better traffic staggering and separation with closely spaced parallel runways.

Original NASA ASRS Text

Title: TCASII RA.

Narrative: WE WERE ON A STRAIGHT-IN, VISUAL APCH TO RWY 30L AT SJC ARPT, CLRED BY SJC TWR (AJC). OUR DISTANCE ON FINAL APCH WAS ABOUT 2-4 MI FROM THE RWY. TWR HAD INFORMED US THAT WE WOULD SEE TFC (CESSNA SEL) ON A L BASE LEG TURNING FINAL APCH FOR RWY 29. THE 'WX' CONDITIONS WERE REAL GOOD VFR AND GOOD VISIBILITY. THE TIME OF DAY WAS ABOUT XA20 PM LCL WITH THE SUN LOW IN THE SKY. THIS WORSENED OUR SLANT VISIBILITY. ANYWAY, WE'RE LINED UP WITH THE RWY, STABILIZED IN THE LNDG CONFIGN AND 'CLRED TO LAND ON RWY 30L.' THE CESSNA WAS EITHER ON HIS L BASE LEG TURNING FINAL TO RWY 29 OR ALREADY ON FINAL DRIFTING OVER OUR DIRECTION. WE HAD HIM IN SIGHT. NEXT OUR TCASII WAS BLARING 'CLB, CLB, CLB' RA FOLLOWING THE TA, 'TFC, TFC, TFC.' WE FOLLOWED THE RA MANEUVER AND ADVISED THE TWR WE WERE 'GOING AROUND' IN AN EVASIVE CLBING R TURN. THE CESSNA APPEARED TO BE 1000-1300 FT, HORIZ TO OUR L. TOO CLOSE FOR SAFETY AND COMFORT. EVERYTHING WORKED OUT FINE, BUT RECOMMEND BETTER TFC STAGGERING AND SEPARATION WITH CLOSELY SPACED PARALLEL RWYS.

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.