A P210 has a conflict after receiving a tcad warning when following a PA28 on departure from lex, ky...

Attributes
ACN	620299
Time
Date	200406
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : lex.airport
State Reference	KY
Altitude	msl single value : 3350
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lex.tower
Operator	general aviation : personal
Make Model Name	Cessna 210 Centurion / Turbo Centurion 210C, 210D
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : lex.tower
Make Model Name	PA-28 Cherokee/Archer II/Dakota/Pillan/Warrior
Flight Phase	climbout : intermediate altitude
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : cfi pilot : atp pilot : instrument pilot : flight engineer pilot : multi engine
Experience	flight time last 90 days : 36 flight time total : 25200 flight time type : 2800
ASRS Report	620299
Events
Anomaly	conflict : airborne less severe
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : separated traffic controller : issued new clearance controller : issued advisory flight crew : took evasive action
Miss Distance	horizontal : 4500 vertical : 300
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure

Narrative:

We were cleared for takeoff from lex, runway 22. We were the 3RD aircraft of 3 cleared for takeoff in a quick sequence. The aircraft in front of us was a cherokee. We were cleared runway heading and up to 2500 ft. I used a slower than normal climb speed to avoid overtaking the cherokee. I asked where the traffic was and was told it was 12 O'clock position, and they asked if I had it in sight. I replied that it was not in sight. We then were assigned a heading of 200 degrees and cleared up to 10000 ft. At about 3350 ft, my tcad called traffic 12 O'clock position, +300 ft. About the same time, departure gave us a 070 degree heading. I started a turn and a descent to avoid the traffic on the tcad. My descent took me to about 2900 ft. I rolled out on a 070 degree heading and resumed my climb. Lex departure then requested that I climb to and maintain 5000 ft on a 070 degree heading.

Original NASA ASRS Text

Title: A P210 HAS A CONFLICT AFTER RECEIVING A TCAD WARNING WHEN FOLLOWING A PA28 ON DEP FROM LEX, KY.

Narrative: WE WERE CLRED FOR TKOF FROM LEX, RWY 22. WE WERE THE 3RD ACFT OF 3 CLRED FOR TKOF IN A QUICK SEQUENCE. THE ACFT IN FRONT OF US WAS A CHEROKEE. WE WERE CLRED RWY HDG AND UP TO 2500 FT. I USED A SLOWER THAN NORMAL CLB SPD TO AVOID OVERTAKING THE CHEROKEE. I ASKED WHERE THE TFC WAS AND WAS TOLD IT WAS 12 O'CLOCK POS, AND THEY ASKED IF I HAD IT IN SIGHT. I REPLIED THAT IT WAS NOT IN SIGHT. WE THEN WERE ASSIGNED A HDG OF 200 DEGS AND CLRED UP TO 10000 FT. AT ABOUT 3350 FT, MY TCAD CALLED TFC 12 O'CLOCK POS, +300 FT. ABOUT THE SAME TIME, DEP GAVE US A 070 DEG HDG. I STARTED A TURN AND A DSCNT TO AVOID THE TFC ON THE TCAD. MY DSCNT TOOK ME TO ABOUT 2900 FT. I ROLLED OUT ON A 070 DEG HDG AND RESUMED MY CLB. LEX DEP THEN REQUESTED THAT I CLB TO AND MAINTAIN 5000 FT ON A 070 DEG HDG.

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.