Air carrier on departure is given vectors for avoidance of traffic.

Attributes
ACN	551222
Time
Date	200206
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lan.airport
State Reference	MI
Altitude	msl single value : 4000
Environment
Flight Conditions	Mixed
Weather Elements	Turbulence Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : lan.tracon
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : lan.tracon
Operator	general aviation : personal
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 3000
ASRS Report	557222
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : issued alert controller : issued new clearance flight crew : took precautionary avoidance action
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Weather
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation

Narrative:

On departure from ZZZ runway 10, we requested 120 degree heading to avoid thunderstorms off departure end and to north. A C172 had just done a touch-and-go and appeared to be departing in the same direction. On our first call to departure control, we were instructed to join ZZZ2 (as filed). We replied that we couldn't due to thunderstorms. Departure control never acknowledged our report. At the time of this clearance, we were passing the 075 degree radial off lan VOR. I instructed the first officer (PF) to begin a left turn to join and again tried to inform departure of the WX problem. Departure then issued traffic alerts and headings to separate us from the C172. We saw the C172 on TCASII but never received an advisory. We also had the C172 visually and reported same, but because departure was rapidly giving out headings, I don't think they heard our report. This could all have been avoided if tower had delayed our departure a little longer or if departure control would have acknowledged our first reply that V133 was not usable due to WX. As it was, we were in moderate turbulence skirting the WX until adequate separation was obtained and we were allowed to fly clear of the WX.

Original NASA ASRS Text

Title: ACR ON DEP IS GIVEN VECTORS FOR AVOIDANCE OF TFC.

Narrative: ON DEP FROM ZZZ RWY 10, WE REQUESTED 120 DEG HDG TO AVOID TSTMS OFF DEP END AND TO N. A C172 HAD JUST DONE A TOUCH-AND-GO AND APPEARED TO BE DEPARTING IN THE SAME DIRECTION. ON OUR FIRST CALL TO DEP CTL, WE WERE INSTRUCTED TO JOIN ZZZ2 (AS FILED). WE REPLIED THAT WE COULDN'T DUE TO TSTMS. DEP CTL NEVER ACKNOWLEDGED OUR RPT. AT THE TIME OF THIS CLRNC, WE WERE PASSING THE 075 DEG RADIAL OFF LAN VOR. I INSTRUCTED THE FO (PF) TO BEGIN A L TURN TO JOIN AND AGAIN TRIED TO INFORM DEP OF THE WX PROB. DEP THEN ISSUED TFC ALERTS AND HDGS TO SEPARATE US FROM THE C172. WE SAW THE C172 ON TCASII BUT NEVER RECEIVED AN ADVISORY. WE ALSO HAD THE C172 VISUALLY AND RPTED SAME, BUT BECAUSE DEP WAS RAPIDLY GIVING OUT HDGS, I DON'T THINK THEY HEARD OUR RPT. THIS COULD ALL HAVE BEEN AVOIDED IF TWR HAD DELAYED OUR DEP A LITTLE LONGER OR IF DEP CTL WOULD HAVE ACKNOWLEDGED OUR FIRST REPLY THAT V133 WAS NOT USABLE DUE TO WX. AS IT WAS, WE WERE IN MODERATE TURB SKIRTING THE WX UNTIL ADEQUATE SEPARATION WAS OBTAINED AND WE WERE ALLOWED TO FLY CLR OF THE WX.

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.