Sct controller described separation event when ont tower departed two successive departures with les...

Narrative:

Aircraft X and aircraft Y were both released via the ARTS run-down. Both were assigned heading 255 climbing to 4000. Ont cab coordinator called via the voice line and stated that aircraft Y (second departure) would be requesting VFR-on-top. I acknowledged the information. Aircraft X departed; followed by aircraft Y with less than standard (3NM) separation. Aircraft Y requested VFR-on-top on initial check-in. Recommendation; ont ATCT should use standard separation or visual separation in cases such as this. Visual separation must be coordinated with pomona radar in this case per the LOA. This would have been the most effective way to handle situations such as this since the weather conditions were VMC.

Original NASA ASRS Text

Title: SCT Controller described separation event when ONT Tower departed two successive departures with less than required separation; the second aircraft requesting a VFR ON TOP clearance.

Narrative: Aircraft X and Aircraft Y were both released via the ARTS run-down. Both were assigned heading 255 climbing to 4000. ONT Cab Coordinator called via the voice line and stated that Aircraft Y (second departure) would be requesting VFR-on-top. I acknowledged the information. Aircraft X departed; followed by Aircraft Y with less than standard (3NM) separation. Aircraft Y requested VFR-on-top on initial check-in. Recommendation; ONT ATCT should use standard separation or visual separation in cases such as this. Visual separation must be coordinated with Pomona Radar in this case per the LOA. This would have been the most effective way to handle situations such as this since the weather conditions were VMC.

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.

Attributes
ACN	862906
Time
Date	200912
Local Time Of Day	1201-1800
Place
Locale Reference	SCT.TRACON
State Reference	CA
Aircraft 1
Make Model Name	Caravan 208A
Flight Phase	Initial Climb
Flight Plan	IFR
Aircraft 2
Make Model Name	Caravan 208A
Flight Phase	Initial Climb
Flight Plan	IFR
Person 1
Function	Approach Departure
Events
Anomaly	ATC Issue All Types

Sct controller described separation event when ont tower departed two successive departures with less than required separation; the second aircraft requesting a VFR on top clearance.