Less than standard separation between 2 air carrier aircraft.

Attributes
ACN	100258
Time
Date	198812
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : oak airport : sfo
State Reference	CA
Altitude	msl bound lower : 2000 msl bound upper : 2200
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : oak tower : pdx
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
ASRS Report	100258
Person 2
Affiliation	government : faa
Function	oversight : coordinator
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other other : unspecified atc
Resolutory Action	controller : issued new clearance none taken : unable none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 12000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Inter Facility Coordination Failure Operational Error

Narrative:

Sfo departing runway 01 oak departing runway 11 right turn to 290 degrees, maintain 2000'. Widebody transport air carrier X was released by the coordinator off sfo heading 030 with medium large transport air carrier Y released off oak runway 11 already released. I had told the coordinator not to release both aircraft at the same time as conflicts happen with those departures on a regular basis. X departed and was slow climbing. Air carrier Y off oak departed and the tower did not accomplish a timely frequency change. I turned X left and told him to expedite through 3000'. The supervisor was standing at the position watching. Air carrier Y told me on initial contact that he did not have his traffic in sight. I informed the supervisor. There was approximately 100' of vertical sep (air carrier X on top) when 3 mi was lost. The supervisor called oak tower and they said Y was maintaining visibility. It was therefore deemed not to be a system's error. I showed the supervisor the requirements for visibility in the 7110.65 but no further action was taken.

Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION BETWEEN 2 ACR ACFT.

Narrative: SFO DEPARTING RWY 01 OAK DEPARTING RWY 11 RIGHT TURN TO 290 DEGS, MAINTAIN 2000'. WDB ACR X WAS RELEASED BY THE COORDINATOR OFF SFO HDG 030 WITH MLG ACR Y RELEASED OFF OAK RWY 11 ALREADY RELEASED. I HAD TOLD THE COORDINATOR NOT TO RELEASE BOTH ACFT AT THE SAME TIME AS CONFLICTS HAPPEN WITH THOSE DEPS ON A REGULAR BASIS. X DEPARTED AND WAS SLOW CLBING. ACR Y OFF OAK DEPARTED AND THE TWR DID NOT ACCOMPLISH A TIMELY FREQ CHANGE. I TURNED X LEFT AND TOLD HIM TO EXPEDITE THROUGH 3000'. THE SUPVR WAS STANDING AT THE POS WATCHING. ACR Y TOLD ME ON INITIAL CONTACT THAT HE DID NOT HAVE HIS TFC IN SIGHT. I INFORMED THE SUPVR. THERE WAS APPROX 100' OF VERT SEP (ACR X ON TOP) WHEN 3 MI WAS LOST. THE SUPVR CALLED OAK TWR AND THEY SAID Y WAS MAINTAINING VIS. IT WAS THEREFORE DEEMED NOT TO BE A SYS'S ERROR. I SHOWED THE SUPVR THE REQUIREMENTS FOR VIS IN THE 7110.65 BUT NO FURTHER ACTION WAS TAKEN.

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.