Air carrier climbing to assigned altitude has TCASII TA then RA. Responds.

Attributes
ACN	189829
Time
Date	199109
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hfd
State Reference	CT
Altitude	msl bound lower : 9400 msl bound upper : 9800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bdl
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
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 8000 flight time type : 800
ASRS Report	189829
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 150 flight time total : 3000 flight time type : 100
ASRS Report	189509
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : returned to intended course or assigned course flight crew : took evasive action other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

TCASII gave TA. I noted the traffic on the TCASII screen at 10 O'clock and +800 ft, then I noted the traffic visually. Next, TCASII gave an RA with verbal 'descend' instruction. At this point the traffic I saw did not appear to be a problem to us. Then, hartford departure called the traffic to us and instructed us to turn to a 160 degree heading. The turn would cause more of a conflict by my perception so I took the airplane and descended while making the turn. We advised departure of the TCASII RA and the descent. Departure gave us a frequency change to boston center and advised us of VFR traffic at 8500 ft in our general direction of flight. This caused confusion at a busy time -- change of frequency was not a good idea at this time, but we changed frequency. We descended from approximately 9800 ft to approximately 9400 ft while the conflict was resolved. We never saw and TCASII never reported the second traffic. TCASII seemed to work as it should except that a level off should have resolved the conflict and TCASII verbally called for a descent. No green lights were noted. Hartford departure and boston center, it would seem, could have coordinated the traffic and us better. They certainly could have been more clear about the traffic and could have avoided a frequency change during TCASII resolution.

Original NASA ASRS Text

Title: ACR CLBING TO ASSIGNED ALT HAS TCASII TA THEN RA. RESPONDS.

Narrative: TCASII GAVE TA. I NOTED THE TFC ON THE TCASII SCREEN AT 10 O'CLOCK AND +800 FT, THEN I NOTED THE TFC VISUALLY. NEXT, TCASII GAVE AN RA WITH VERBAL 'DSND' INSTRUCTION. AT THIS POINT THE TFC I SAW DID NOT APPEAR TO BE A PROBLEM TO US. THEN, HARTFORD DEP CALLED THE TFC TO US AND INSTRUCTED US TO TURN TO A 160 DEG HDG. THE TURN WOULD CAUSE MORE OF A CONFLICT BY MY PERCEPTION SO I TOOK THE AIRPLANE AND DSNDED WHILE MAKING THE TURN. WE ADVISED DEP OF THE TCASII RA AND THE DSCNT. DEP GAVE US A FREQ CHANGE TO BOSTON CENTER AND ADVISED US OF VFR TFC AT 8500 FT IN OUR GENERAL DIRECTION OF FLT. THIS CAUSED CONFUSION AT A BUSY TIME -- CHANGE OF FREQ WAS NOT A GOOD IDEA AT THIS TIME, BUT WE CHANGED FREQ. WE DSNDED FROM APPROX 9800 FT TO APPROX 9400 FT WHILE THE CONFLICT WAS RESOLVED. WE NEVER SAW AND TCASII NEVER RPTED THE SECOND TFC. TCASII SEEMED TO WORK AS IT SHOULD EXCEPT THAT A LEVEL OFF SHOULD HAVE RESOLVED THE CONFLICT AND TCASII VERBALLY CALLED FOR A DSCNT. NO GREEN LIGHTS WERE NOTED. HARTFORD DEP AND BOSTON CENTER, IT WOULD SEEM, COULD HAVE COORDINATED THE TFC AND US BETTER. THEY CERTAINLY COULD HAVE BEEN MORE CLR ABOUT THE TFC AND COULD HAVE AVOIDED A FREQ CHANGE DURING TCASII RESOLUTION.

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.