Small aircraft Y non adherence to ATC clearance had near midair collision with air carrier X. Pilot ...

Attributes
ACN	201449
Time
Date	199202
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : srq
State Reference	NY
Altitude	msl bound lower : 1300 msl bound upper : 1300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : srq
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	other
Route In Use	approach : visual
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 120 flight time total : 5000 flight time type : 400
ASRS Report	201449
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 300 vertical : 100
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier X in run up block for runway 32, we heard the tower ask an small aircraft Y to state request. She replied with, 'would like to circle the field at 1500' on left turns 2 times.' shortly after that, we were cleared for takeoff runway 32. Our departure instructions were to turn left at the MM and intercept the srq 295 vectors. There was no mention to us about any conflict with other traffic. At about 500 ft MSL our TCASII issued a TA and displayed a target at out 2 O'clock position, level above us. I immediately lowered the nose and acquired small aircraft Y visually. I consequently, lightened the left turn (approximately 45-50 degree bank) and began a descent away from it. As this was happening, TCASII gave an RA 'monitor vertical speed' and commanded a climb of 3000-3500 FPM. Compliance with that did not appear to be a good idea because it would have given us less separation then we were already getting. We continued the left turn and leveled off. After this, the tower advised us that small aircraft Y had not complied with instructions to 'remain north of runway 32' which she had accepted with a 'roger.' subsequently we were handed off to tpa departure and continued with a normal flight. I credit TCASII with enabling us to be aware of potential conflict so rapidly, and also with helping me to be aware of potential conflict so rapidly and also with helping me acquire the target visually very fast. However, the TCASII logic for commanding avoidance may not have been the best choice. I called the srq tower upon landing in clt and spoke with the tower supervisor on duty at the time. He said 'it was a learning experience for the tower personnel and the small aircraft Y driver, but that she had us in sight at all times.' a small consolation knowing that she would have watched us all the way to impact! I was taken by the fact that this occurred in an air traffic area, the last place I would expect to encounter unannounced traffic.

Original NASA ASRS Text

Title: SMA Y NON ADHERENCE TO ATC CLRNC HAD NMAC WITH ACR X. PLTDEV. ACR X TCASII TA RA EVASIVE ACTION TAKEN.

Narrative: ACR X IN RUN UP BLOCK FOR RWY 32, WE HEARD THE TWR ASK AN SMA Y TO STATE REQUEST. SHE REPLIED WITH, 'WOULD LIKE TO CIRCLE THE FIELD AT 1500' ON L TURNS 2 TIMES.' SHORTLY AFTER THAT, WE WERE CLRED FOR TKOF RWY 32. OUR DEP INSTRUCTIONS WERE TO TURN L AT THE MM AND INTERCEPT THE SRQ 295 VECTORS. THERE WAS NO MENTION TO US ABOUT ANY CONFLICT WITH OTHER TFC. AT ABOUT 500 FT MSL OUR TCASII ISSUED A TA AND DISPLAYED A TARGET AT OUT 2 O'CLOCK POS, LEVEL ABOVE US. I IMMEDIATELY LOWERED THE NOSE AND ACQUIRED SMA Y VISUALLY. I CONSEQUENTLY, LIGHTENED THE L TURN (APPROX 45-50 DEG BANK) AND BEGAN A DSCNT AWAY FROM IT. AS THIS WAS HAPPENING, TCASII GAVE AN RA 'MONITOR VERT SPD' AND COMMANDED A CLB OF 3000-3500 FPM. COMPLIANCE WITH THAT DID NOT APPEAR TO BE A GOOD IDEA BECAUSE IT WOULD HAVE GIVEN US LESS SEPARATION THEN WE WERE ALREADY GETTING. WE CONTINUED THE L TURN AND LEVELED OFF. AFTER THIS, THE TWR ADVISED US THAT SMA Y HAD NOT COMPLIED WITH INSTRUCTIONS TO 'REMAIN N OF RWY 32' WHICH SHE HAD ACCEPTED WITH A 'ROGER.' SUBSEQUENTLY WE WERE HANDED OFF TO TPA DEP AND CONTINUED WITH A NORMAL FLT. I CREDIT TCASII WITH ENABLING US TO BE AWARE OF POTENTIAL CONFLICT SO RAPIDLY, AND ALSO WITH HELPING ME TO BE AWARE OF POTENTIAL CONFLICT SO RAPIDLY AND ALSO WITH HELPING ME ACQUIRE THE TARGET VISUALLY VERY FAST. HOWEVER, THE TCASII LOGIC FOR COMMANDING AVOIDANCE MAY NOT HAVE BEEN THE BEST CHOICE. I CALLED THE SRQ TWR UPON LNDG IN CLT AND SPOKE WITH THE TWR SUPVR ON DUTY AT THE TIME. HE SAID 'IT WAS A LEARNING EXPERIENCE FOR THE TWR PERSONNEL AND THE SMA Y DRIVER, BUT THAT SHE HAD US IN SIGHT AT ALL TIMES.' A SMALL CONSOLATION KNOWING THAT SHE WOULD HAVE WATCHED US ALL THE WAY TO IMPACT! I WAS TAKEN BY THE FACT THAT THIS OCCURRED IN AN ATA, THE LAST PLACE I WOULD EXPECT TO ENCOUNTER UNANNOUNCED TFC.

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.

Small aircraft Y non adherence to ATC clearance had near midair collision with air carrier X. Pilot deviation. Air carrier X TCASII TA RA evasive action taken.