Near midair collision between 2 air carrier part 121 commuters.

Attributes
ACN	307294
Time
Date	199506
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bdr airport : pvd
State Reference	CT
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	common carrier : air carrier
Make Model Name	SF 340A
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	ATR 42
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 250 flight time total : 9300 flight time type : 900
ASRS Report	307294
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : nmac other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Bradley controller vectored intruder aircraft into our path of flight (V-167 wbound). Because of marginal visibility, TCASII was the first warning of a conflict at approximately 5 mi. I instructed the first officer to get ready to disconnect the autoplt. At approximately 2 mi we received an RA to climb. I did not sight the intruder aircraft until it had passed behind us. It had been at 6000 ft and received an RA to descend. I try to keep a picture of what the aircraft around me have been instructed to do. In this incident the intruder aircraft had initially been ahead of us on the airway. For whatever reasons the controller elected to vector the aircraft off the airway to let us pass. She then forgot to turn us to the next airway (see diagram) and turned the intruder tack into our path. I should have picked up on this sooner but did not. TCASII once again proved its value in preventing possible mid- air collision. Note: I believe controller had intended to vector us to V-1 and became distracted by other responsibilities. Our clearance (V-167 hfd, V-1 mad) led us into a conflict with aircraft #2 being vectored back at hfd.

Original NASA ASRS Text

Title: NMAC BTWN 2 ACR PART 121 COMMUTERS.

Narrative: BRADLEY CTLR VECTORED INTRUDER ACFT INTO OUR PATH OF FLT (V-167 WBOUND). BECAUSE OF MARGINAL VISIBILITY, TCASII WAS THE FIRST WARNING OF A CONFLICT AT APPROX 5 MI. I INSTRUCTED THE FO TO GET READY TO DISCONNECT THE AUTOPLT. AT APPROX 2 MI WE RECEIVED AN RA TO CLB. I DID NOT SIGHT THE INTRUDER ACFT UNTIL IT HAD PASSED BEHIND US. IT HAD BEEN AT 6000 FT AND RECEIVED AN RA TO DSND. I TRY TO KEEP A PICTURE OF WHAT THE ACFT AROUND ME HAVE BEEN INSTRUCTED TO DO. IN THIS INCIDENT THE INTRUDER ACFT HAD INITIALLY BEEN AHEAD OF US ON THE AIRWAY. FOR WHATEVER REASONS THE CTLR ELECTED TO VECTOR THE ACFT OFF THE AIRWAY TO LET US PASS. SHE THEN FORGOT TO TURN US TO THE NEXT AIRWAY (SEE DIAGRAM) AND TURNED THE INTRUDER TACK INTO OUR PATH. I SHOULD HAVE PICKED UP ON THIS SOONER BUT DID NOT. TCASII ONCE AGAIN PROVED ITS VALUE IN PREVENTING POSSIBLE MID- AIR COLLISION. NOTE: I BELIEVE CTLR HAD INTENDED TO VECTOR US TO V-1 AND BECAME DISTRACTED BY OTHER RESPONSIBILITIES. OUR CLRNC (V-167 HFD, V-1 MAD) LED US INTO A CONFLICT WITH ACFT #2 BEING VECTORED BACK AT HFD.

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.