Two IFR aircraft departing different airports came in close proximity to each other.

Attributes
ACN	119260
Time
Date	198908
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : pom airport : ont
State Reference	CA
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : ont artcc : zid
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
ASRS Report	119260
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact other
Consequence	Other
Miss Distance	horizontal : 5000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

2 aircraft got somewhat close on departure from 2 different airports. The departure procedures off each airport conflict with each other. The pomona VOR was out of service at the time, increasing workload and altering departure procedures. No evasive action was taken. By the time it was observed on radar the 2 aircraft were already less than 1 mile and 2 hundred feet vertically apart. Both aircraft were released on converging courses without insuring separation. Perhaps as well, with the VOR being out of service, it would be wise to slow down the pace of traffic somewhat.

Original NASA ASRS Text

Title: TWO IFR ACFT DEPARTING DIFFERENT ARPTS CAME IN CLOSE PROX TO EACH OTHER.

Narrative: 2 ACFT GOT SOMEWHAT CLOSE ON DEP FROM 2 DIFFERENT ARPTS. THE DEP PROCS OFF EACH ARPT CONFLICT WITH EACH OTHER. THE POMONA VOR WAS OUT OF SERVICE AT THE TIME, INCREASING WORKLOAD AND ALTERING DEP PROCS. NO EVASIVE ACTION WAS TAKEN. BY THE TIME IT WAS OBSERVED ON RADAR THE 2 ACFT WERE ALREADY LESS THAN 1 MILE AND 2 HUNDRED FEET VERTICALLY APART. BOTH ACFT WERE RELEASED ON CONVERGING COURSES WITHOUT INSURING SEPARATION. PERHAPS AS WELL, WITH THE VOR BEING OUT OF SERVICE, IT WOULD BE WISE TO SLOW DOWN THE PACE OF TFC SOMEWHAT.

Data retrieved from NASA's ASRS site as of August 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.