TCASII RA caused pilot to exercise an evasive maneuver dive level off to avoid crossing traffic.

Attributes
ACN	206268
Time
Date	199204
Day	Thu
Place
Locale Reference	airport : bur
State Reference	CA
Altitude	msl bound lower : 7700 msl bound upper : 7800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bur tower : spi
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial
Experience	flight time last 90 days : 240 flight time total : 8000 flight time type : 1000
ASRS Report	206268
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : nmac
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation
Situations
ATC Facility	procedure or policy : unspecified

Narrative:

Departing bur airport. ATC advised of traffic at 8500 ft. The TCASII advised of 'traffic' and finally a RA was commanded to 'descend.' aircraft was maneuvered down and under aircraft approaching from our 10 O'clock position. Last TCASII display was a red square with 300 ft vertical separation before aircraft was spotted, an small transport. Targets merged as aircraft flew directly overhead. Due to steep climbing vector, our aircraft 'ballooned' during push over and vertical separation was less than 200 ft. ATC advised to save tapes for near midair collision report.

Original NASA ASRS Text

Title: TCASII RA CAUSED PLT TO EXERCISE AN EVASIVE MANEUVER DIVE LEVEL OFF TO AVOID XING TFC.

Narrative: DEPARTING BUR ARPT. ATC ADVISED OF TFC AT 8500 FT. THE TCASII ADVISED OF 'TFC' AND FINALLY A RA WAS COMMANDED TO 'DSND.' ACFT WAS MANEUVERED DOWN AND UNDER ACFT APCHING FROM OUR 10 O'CLOCK POS. LAST TCASII DISPLAY WAS A RED SQUARE WITH 300 FT VERT SEPARATION BEFORE ACFT WAS SPOTTED, AN SMT. TARGETS MERGED AS ACFT FLEW DIRECTLY OVERHEAD. DUE TO STEEP CLBING VECTOR, OUR ACFT 'BALLOONED' DURING PUSH OVER AND VERT SEPARATION WAS LESS THAN 200 FT. ATC ADVISED TO SAVE TAPES FOR NMAC RPT.

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.