GA-small transport unauthorized taxi and close proximity with GA-small aircraft after takeoff.

Attributes
ACN	105807
Time
Date	198903
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sba
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 1500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sba
Operator	general aviation : instructional
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : intermediate altitude ground other : taxi
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	cruise other
Person 1
Affiliation	Other
Function	flight crew : first officer instruction : instructor
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 30 flight time total : 4600
ASRS Report	105807
Person 2
Affiliation	Other
Function	flight crew : captain instruction : trainee
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 50 flight time total : 6010
ASRS Report	105755
Events
Anomaly	conflict : nmac non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 200 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Upon taxi out I called ground control (sba) stating that I was out of FBO with information X with clearance. The ground controller then queried us, 'are you sure you have clearance?' I responded, 'affirmative, squawking abfe.' the next several xmissions volleyed back and forth as to the effect that he had no strip on us. While this occurred we had proceeded into taxiway B and were proceeding to runway 25. The controller then instructed us to 'stop' and then inquired as to whether we had clearance to taxi onto taxiway B. I responded, 'I don't recall with all of our conversation.' the sba controller responded, 'I didn't give you clearance, hold your position while I find your clearance strip.' finally the controller found his strip and we proceeded to runway 25. Sba tower cleared us for takeoff on runway 25 with a right downwind departure. I was flying right seat overseeing the pilot in the left seat for instructional purposes. Just prior to our starting the right downwind leg the tower advised us of traffic entering on a right downwind leg at our 11 O'clock position. I looked over the glare shield and saw the traffic and proceeded to start immediate evasive maneuvers. On the preceding trajectory we would have collided west/O evasive acton and secondarily would have collided during my downwind turn. This maneuver required full aileron deflection with the appropriate rudder response. The other aircraft was a single engine small aircraft. I had initially spotted the aircraft at approximately 150 yds. I notified the tower of the near miss. This incident was followed with a phone conversation to sbo tower personnel. Supplemental information from acn 105755: as we taxied into our transient parking area I called clearance delivery and received departure clearance, 'sba to oxnard VFR.' the clearance received was, 'depart runway 25 with a right downwind departure, squawk abfe.' we advised we would shut down for about 15-20 mins, then back up for departure. The controller again acknowledged.

Original NASA ASRS Text

Title: GA-SMT UNAUTH TAXI AND CLOSE PROX WITH GA-SMA AFTER TKOF.

Narrative: UPON TAXI OUT I CALLED GND CTL (SBA) STATING THAT I WAS OUT OF FBO WITH INFO X WITH CLRNC. THE GND CTLR THEN QUERIED US, 'ARE YOU SURE YOU HAVE CLRNC?' I RESPONDED, 'AFFIRMATIVE, SQUAWKING ABFE.' THE NEXT SEVERAL XMISSIONS VOLLEYED BACK AND FORTH AS TO THE EFFECT THAT HE HAD NO STRIP ON US. WHILE THIS OCCURRED WE HAD PROCEEDED INTO TXWY B AND WERE PROCEEDING TO RWY 25. THE CTLR THEN INSTRUCTED US TO 'STOP' AND THEN INQUIRED AS TO WHETHER WE HAD CLRNC TO TAXI ONTO TXWY B. I RESPONDED, 'I DON'T RECALL WITH ALL OF OUR CONVERSATION.' THE SBA CTLR RESPONDED, 'I DIDN'T GIVE YOU CLRNC, HOLD YOUR POS WHILE I FIND YOUR CLRNC STRIP.' FINALLY THE CTLR FOUND HIS STRIP AND WE PROCEEDED TO RWY 25. SBA TWR CLRED US FOR TKOF ON RWY 25 WITH A RIGHT DOWNWIND DEP. I WAS FLYING RIGHT SEAT OVERSEEING THE PLT IN THE LEFT SEAT FOR INSTRUCTIONAL PURPOSES. JUST PRIOR TO OUR STARTING THE RIGHT DOWNWIND LEG THE TWR ADVISED US OF TFC ENTERING ON A RIGHT DOWNWIND LEG AT OUR 11 O'CLOCK POS. I LOOKED OVER THE GLARE SHIELD AND SAW THE TFC AND PROCEEDED TO START IMMEDIATE EVASIVE MANEUVERS. ON THE PRECEDING TRAJECTORY WE WOULD HAVE COLLIDED W/O EVASIVE ACTON AND SECONDARILY WOULD HAVE COLLIDED DURING MY DOWNWIND TURN. THIS MANEUVER REQUIRED FULL AILERON DEFLECTION WITH THE APPROPRIATE RUDDER RESPONSE. THE OTHER ACFT WAS A SINGLE ENG SMA. I HAD INITIALLY SPOTTED THE ACFT AT APPROX 150 YDS. I NOTIFIED THE TWR OF THE NEAR MISS. THIS INCIDENT WAS FOLLOWED WITH A PHONE CONVERSATION TO SBO TWR PERSONNEL. SUPPLEMENTAL INFO FROM ACN 105755: AS WE TAXIED INTO OUR TRANSIENT PARKING AREA I CALLED CLRNC DELIVERY AND RECEIVED DEP CLRNC, 'SBA TO OXNARD VFR.' THE CLRNC RECEIVED WAS, 'DEPART RWY 25 WITH A RIGHT DOWNWIND DEP, SQUAWK ABFE.' WE ADVISED WE WOULD SHUT DOWN FOR ABOUT 15-20 MINS, THEN BACK UP FOR DEP. THE CTLR AGAIN ACKNOWLEDGED.

Data retrieved from NASA's ASRS site as of August 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.