Corporate jet departing sus experienced a TCAS TA/RA with a preceding C172 departure and then with a...

Narrative:

First come first served in the ATC environment is not always the safest method to apply; but ATC can't seem to get around this. Had the sus tower delayed a C-172 departure one minute; this incident would not have happened. Three airplanes were waiting to depart from sus. A C-172; a cessna caravan; and our G-550. We were to be number three. The cessna 172 was cleared to takeoff first off runway 26R; with a straight out departure; with suitable spacing; the caravan was cleared to takeoff next from runway 26R with a left turnout. Even though there is a noise abatement restriction that delays the left turnout; the caravan was asked to expedite his turn so that we could be released; as stated by the tower. As soon as he turned away; we were cleared for takeoff. Now the interesting part. Our clearance off runway 26L was runway heading and maintain 2;500 ft. We took off and complied with the clearance. We set the autothrottles to maintain 200 KTS and engaged the autopilot to fly the runway heading. As we climbed; we got a TA on the cessna 172; who was drifting in front of us. I turned a little left to avoid it. The TA went away as we passed the 172. He was also apparently supposed to level at 2;000 ft but did not; and we got another TA. This quickly went away as we gained distance from the cessna 172. We were then handed off to [T75] (st. Louis) departure. This controller told us to maintain 2;500 ft; and to turn right to a 360 degree heading. He also told us to watch for 3;000 foot traffic inbound to stl. Well; the right turn put us in conflict with the cessna 172 again; who apparently had started a climb; and resulted in yet another TA with it. As this was happening we then got a TA on the 3;000 foot traffic. Then a monitor vertical speed RA on the C-172. I turned away from the cessna 172; stayed under the 3;000 foot traffic; a twin engine of some kind and cleared the traffic. Shortly there after we were cleared higher and on our way.

Original NASA ASRS Text

Title: Corporate jet departing SUS experienced a TCAS TA/RA with a preceding C172 departure and then with a STL inbound; the reporter listing ATC's 'first come first serve' procedure as problematic.

Narrative: First come first served in the ATC environment is not always the safest method to apply; but ATC can't seem to get around this. Had the SUS Tower delayed a C-172 departure one minute; this incident would not have happened. Three airplanes were waiting to depart from SUS. A C-172; a Cessna Caravan; and our G-550. We were to be number three. The Cessna 172 was cleared to takeoff first off Runway 26R; with a straight out departure; with suitable spacing; the Caravan was cleared to takeoff next from Runway 26R with a left turnout. Even though there is a noise abatement restriction that delays the left turnout; the Caravan was asked to expedite his turn so that we could be released; as stated by the Tower. As soon as he turned away; we were cleared for takeoff. Now the interesting part. Our clearance off Runway 26L was runway heading and maintain 2;500 FT. We took off and complied with the clearance. We set the autothrottles to maintain 200 KTS and engaged the autopilot to fly the runway heading. As we climbed; we got a TA on the Cessna 172; who was drifting in front of us. I turned a little left to avoid it. The TA went away as we passed the 172. He was also apparently supposed to level at 2;000 FT but did not; and we got another TA. This quickly went away as we gained distance from the Cessna 172. We were then handed off to [T75] (St. Louis) Departure. This Controller told us to maintain 2;500 FT; and to turn right to a 360 degree heading. He also told us to watch for 3;000 foot traffic inbound to STL. Well; the right turn put us in conflict with the Cessna 172 again; who apparently had started a climb; and resulted in yet another TA with it. As this was happening we then got a TA on the 3;000 foot traffic. Then a monitor vertical speed RA on the C-172. I turned away from the Cessna 172; stayed under the 3;000 foot traffic; a twin engine of some kind and cleared the traffic. Shortly there after we were cleared higher and on our way.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1113325
Time
Date	201308
Local Time Of Day	0001-0600
Place
Locale Reference	SUS.Airport
State Reference	MO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Gulfstream V / G500 / G550
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	Vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Glider
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 23500 Flight Crew Type 8500
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Altitude Excursion From Assigned Altitude
Miss Distance	Horizontal 0 Vertical 500

Corporate jet departing sus experienced a TCAS TA/RA with a preceding C172 departure and then with a stl inbound; the reporter listing ATC's 'first come first serve' procedure as problematic.