C310 pilot departing bdr has an near midair collision with an AA5 entering the traffic pattern.

Attributes
ACN	577258
Time
Date	200303
Day	Tue
Local Time Of Day	1201 To 1800
Place
State Reference	CT
Altitude	msl single value : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bdr.tower
Operator	general aviation : personal
Make Model Name	Cessna 310/T310C
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Flight Plan	None
Aircraft 2
Controlling Facilities	tower : bdr.tower
Operator	general aviation : personal
Make Model Name	Cheetah, Tiger, Traveler
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 55 flight time total : 2700 flight time type : 100
ASRS Report	577258
Person 2
Affiliation	other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac non adherence : published procedure non adherence other
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took evasive action other
Miss Distance	horizontal : 1500 vertical : 0
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance

Narrative:

We were departing runway 6 on a full-length departure. Runway 11 was also in use. During the back taxi, tower spoke to another aircraft, but I didn't really pay too much attention to it, because it was not for our aircraft, and I was confirming takeoff checklist items. During climb out at about 1000 ft MSL/AGL, just before I was going to begin my on course turn northbound, the TCASII system went off yelling 'traffic, traffic.' I quickly glanced at the screen, and noted an intruder aircraft approximately 1/4-1/2 mi away at my 1230 O'clock position and 300 ft from my altitude, and descending. I quickly acquired the aircraft visually, and took evasive action northbound. I called the local controller, and asked if he had any traffic to the east of the field. He said 'yes, a grumman, but he should not be a factor.' I said 'well, he was a factor, because he just blew past our right wing, and the TCASII went off!' the grumman responded that 'it wasn't really that close,' but I found out later why it didn't seem as close to him, because the transmission I heard while on my back taxi, but didn't listen to, was the tower telling the grumman that I was departing runway 6, to look out for me. If the tower said to me he didn't think the grumman would be a factor, why did he issue us as traffic to the grumman? In reflection, the situation would have been a non-event if the local controller had told me about the inbound grumman, so I would have begun my on course turn much sooner.

Original NASA ASRS Text

Title: C310 PLT DEPARTING BDR HAS AN NMAC WITH AN AA5 ENTERING THE TFC PATTERN.

Narrative: WE WERE DEPARTING RWY 6 ON A FULL-LENGTH DEP. RWY 11 WAS ALSO IN USE. DURING THE BACK TAXI, TWR SPOKE TO ANOTHER ACFT, BUT I DIDN'T REALLY PAY TOO MUCH ATTN TO IT, BECAUSE IT WAS NOT FOR OUR ACFT, AND I WAS CONFIRMING TKOF CHKLIST ITEMS. DURING CLBOUT AT ABOUT 1000 FT MSL/AGL, JUST BEFORE I WAS GOING TO BEGIN MY ON COURSE TURN NBOUND, THE TCASII SYS WENT OFF YELLING 'TFC, TFC.' I QUICKLY GLANCED AT THE SCREEN, AND NOTED AN INTRUDER ACFT APPROX 1/4-1/2 MI AWAY AT MY 1230 O'CLOCK POS AND 300 FT FROM MY ALT, AND DSNDING. I QUICKLY ACQUIRED THE ACFT VISUALLY, AND TOOK EVASIVE ACTION NBOUND. I CALLED THE LCL CTLR, AND ASKED IF HE HAD ANY TFC TO THE E OF THE FIELD. HE SAID 'YES, A GRUMMAN, BUT HE SHOULD NOT BE A FACTOR.' I SAID 'WELL, HE WAS A FACTOR, BECAUSE HE JUST BLEW PAST OUR R WING, AND THE TCASII WENT OFF!' THE GRUMMAN RESPONDED THAT 'IT WASN'T REALLY THAT CLOSE,' BUT I FOUND OUT LATER WHY IT DIDN'T SEEM AS CLOSE TO HIM, BECAUSE THE XMISSION I HEARD WHILE ON MY BACK TAXI, BUT DIDN'T LISTEN TO, WAS THE TWR TELLING THE GRUMMAN THAT I WAS DEPARTING RWY 6, TO LOOK OUT FOR ME. IF THE TWR SAID TO ME HE DIDN'T THINK THE GRUMMAN WOULD BE A FACTOR, WHY DID HE ISSUE US AS TFC TO THE GRUMMAN? IN REFLECTION, THE SIT WOULD HAVE BEEN A NON-EVENT IF THE LCL CTLR HAD TOLD ME ABOUT THE INBOUND GRUMMAN, SO I WOULD HAVE BEGUN MY ON COURSE TURN MUCH SOONER.

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.