Aircraft X had near midair collision with aircraft Y in VFR tower air traffic area.

Attributes
ACN	129607
Time
Date	198912
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bed
State Reference	MA
Altitude	msl bound lower : 1200 msl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : bed artcc : zmp
Operator	other
Make Model Name	Small Transport
Flight Phase	descent other other
Flight Plan	None
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : initial other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 64 flight time total : 5300 flight time type : 147
ASRS Report	129607
Person 2
Affiliation	Other
Function	flight crew : single pilot
Events
Anomaly	conflict : nmac
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 500 vertical : 200
Supplementary
Primary Problem	Ambiguous

Narrative:

Aircraft Y had just departed the active runway and the control tower told him to 'maintain runway heading, contact departure.' when I next looked he had made a right turn. The aircraft was climbing and was already above aircraft X altitude. Aircraft X was descending into traffic area for a right downwind. Aircraft Y crossed above and behind us. No evasive action was necessary. Since aircraft Y was switched to departure control I did not hear him get cleared for a right turn. I think this type situation could be prevented better if aircraft operating in the same airspace (an air traffic area in this situation) could remain on the same frequency. In this situation an aircraft still well inside the air traffic area and below the traffic pattern altitude had already left the control tower frequency and a controller on departure control is directing an airplane in the air traffic area in VMC. I was squawking XXXX with altitude on and operating.

Original NASA ASRS Text

Title: ACFT X HAD NMAC WITH ACFT Y IN VFR TWR ATA.

Narrative: ACFT Y HAD JUST DEPARTED THE ACTIVE RWY AND THE CTL TWR TOLD HIM TO 'MAINTAIN RWY HDG, CONTACT DEP.' WHEN I NEXT LOOKED HE HAD MADE A RIGHT TURN. THE ACFT WAS CLBING AND WAS ALREADY ABOVE ACFT X ALT. ACFT X WAS DSNDING INTO TFC AREA FOR A RIGHT DOWNWIND. ACFT Y CROSSED ABOVE AND BEHIND US. NO EVASIVE ACTION WAS NECESSARY. SINCE ACFT Y WAS SWITCHED TO DEP CTL I DID NOT HEAR HIM GET CLRED FOR A RIGHT TURN. I THINK THIS TYPE SITUATION COULD BE PREVENTED BETTER IF ACFT OPERATING IN THE SAME AIRSPACE (AN ATA IN THIS SITUATION) COULD REMAIN ON THE SAME FREQ. IN THIS SITUATION AN ACFT STILL WELL INSIDE THE ATA AND BELOW THE TFC PATTERN ALT HAD ALREADY LEFT THE CTL TWR FREQ AND A CTLR ON DEP CTL IS DIRECTING AN AIRPLANE IN THE ATA IN VMC. I WAS SQUAWKING XXXX WITH ALT ON AND OPERATING.

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.