Narrative:

We had just departed ptk airport for roc and were being vectored for climb by dtw departure. We were on an easterly assigned heading at 5000 ft. A climb was issued to 8000 ft and we initiated the climb. After we had initiated the climb, departure issued us opposite direction traffic which I believe was at 6000 ft. A TA was also issued by our TCASII at about this same time, followed within a few seconds by an RA to reduce our climb rate. We visually spotted this traffic at about this same time 2-3 mi ahead, just above our altitude (a single engine plane). With our reduced climb rate, the traffic passed directly above us with the TCASII showing 400 ft separation. It would seem that ATC improperly issued us a climb clearance with this traffic in front of us. Had we not had the TCASII system to alert us, the situation could have been much more serious as we didn't have to make any violent maneuvers to avoid the traffic. It appeared that ATC lost sight momentarily that this traffic was in conflict with us with the issuance of a further climb and was very matter of fact about calling the traffic to us as we were climbing.

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Original NASA ASRS Text

Title: CPR JET REDUCED CLB RATE WHILE IN CLB FROM 5000 FT TO 8000 FT AFTER RECEIVING A TCASII RA ON APPARENT VFR TFC. RPTR SIGHTED TFC AND PASSED UNDER IT.

Narrative: WE HAD JUST DEPARTED PTK ARPT FOR ROC AND WERE BEING VECTORED FOR CLB BY DTW DEP. WE WERE ON AN EASTERLY ASSIGNED HDG AT 5000 FT. A CLB WAS ISSUED TO 8000 FT AND WE INITIATED THE CLB. AFTER WE HAD INITIATED THE CLB, DEP ISSUED US OPPOSITE DIRECTION TFC WHICH I BELIEVE WAS AT 6000 FT. A TA WAS ALSO ISSUED BY OUR TCASII AT ABOUT THIS SAME TIME, FOLLOWED WITHIN A FEW SECONDS BY AN RA TO REDUCE OUR CLB RATE. WE VISUALLY SPOTTED THIS TFC AT ABOUT THIS SAME TIME 2-3 MI AHEAD, JUST ABOVE OUR ALT (A SINGLE ENG PLANE). WITH OUR REDUCED CLB RATE, THE TFC PASSED DIRECTLY ABOVE US WITH THE TCASII SHOWING 400 FT SEPARATION. IT WOULD SEEM THAT ATC IMPROPERLY ISSUED US A CLB CLRNC WITH THIS TFC IN FRONT OF US. HAD WE NOT HAD THE TCASII SYS TO ALERT US, THE SIT COULD HAVE BEEN MUCH MORE SERIOUS AS WE DIDN'T HAVE TO MAKE ANY VIOLENT MANEUVERS TO AVOID THE TFC. IT APPEARED THAT ATC LOST SIGHT MOMENTARILY THAT THIS TFC WAS IN CONFLICT WITH US WITH THE ISSUANCE OF A FURTHER CLB AND WAS VERY MATTER OF FACT ABOUT CALLING THE TFC TO US AS WE WERE CLBING.

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.