While flying the channel 1 SID from sna; the flight crew of a g-ii received a TCAS RA with respect t...

Attributes
ACN	951882
Time
Date	201105
Local Time Of Day	1201-1800
Place
Locale Reference	SNA.Airport
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Gulfstream G200 (IAI 1126 Galaxy)
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Route In Use	SID CHANNEL 1
Flight Plan	IFR
Aircraft 2
Make Model Name	Bonanza 35
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Instructor Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 10875 Flight Crew Type 1200
Events
Anomaly	ATC Issue All Types Conflict Airborne Conflict Deviation - Altitude Excursion From Assigned Altitude
Miss Distance	Horizontal 12000 Vertical 500

Narrative:

I was departing on runway 19R. I was assigned the channel 1 departure procedure but; just prior to take off; the tower re-assigned a level off altitude of 4;000 MSL. After departing and leveling off at the assigned altitude; it was evident that a bonanza at a 10 to 11 o'clock position at 4;500 MSL would be an issue. ATC assigned an immediate heading change to 220 to avoid the traffic. In the turn; the bonanza traffic became a TA; then an RA and just as quickly was no longer a factor. The bonanza traffic appeared to be on flight following with TRACON. Why would TRACON or even the tower allow jet traffic to depart and follow the departure when there is known traffic crossing the path of the departure procedure with numerous jets departing john wayne airport? Even with ATC calling out the traffic for visual confirmation; a clearance still has to be obtained to depart from the clearance unless a 'resolution advisory' is experienced. The idea behind a departure procedure is to expedite the flow of traffic; and it would have made more sense to assign a substantially higher altitude than one which puts low performance aircraft on top of high performance aircraft. Poor coordination on the part of the tower and departure control were the direct cause of this resolution advisory.

Original NASA ASRS Text

Title: While flying the Channel 1 SID from SNA; the flight crew of a G-II received a TCAS RA with respect to a Bonanza traversing the departure corridor utilizing flight following.

Narrative: I was departing on Runway 19R. I was assigned the Channel 1 Departure Procedure but; just prior to take off; the Tower re-assigned a level off altitude of 4;000 MSL. After departing and leveling off at the assigned altitude; it was evident that a Bonanza at a 10 to 11 o'clock position at 4;500 MSL would be an issue. ATC assigned an immediate heading change to 220 to avoid the traffic. In the turn; the Bonanza traffic became a TA; then an RA and just as quickly was no longer a factor. The Bonanza traffic appeared to be on flight following with TRACON. Why would TRACON or even the Tower allow jet traffic to depart and follow the departure when there is known traffic crossing the path of the departure procedure with numerous jets departing John Wayne airport? Even with ATC calling out the traffic for visual confirmation; a clearance still has to be obtained to depart from the clearance unless a 'resolution advisory' is experienced. The idea behind a departure procedure is to expedite the flow of traffic; and it would have made more sense to assign a substantially higher altitude than one which puts low performance aircraft on top of high performance aircraft. Poor coordination on the part of the Tower and Departure Control were the direct cause of this resolution advisory.

Data retrieved from NASA's ASRS site as of April 2012 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.

While flying the channel 1 SID from sna; the flight crew of a g-ii received a TCAS RA with respect to a bonanza traversing the departure corridor utilizing flight following.