Approach controller turned an air carrier B737 on a missed approach to runway 29 at oak to a 040 degree heading to miss departure traffic off the sfo airport and into the departure path of a C500 off runway 27 at oak. Less than standard separation occurred approximately 1-2 NM from the oak airport.

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Attributes
ACN	403033
Time
Date	199805
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : oak
State Reference	CA
Altitude	msl bound lower : 2200 msl bound upper : 2200
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : oak
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	climbout : intermediate altitude landing : missed approach
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Citation I
Operating Under FAR Part	Part 91
Flight Phase	climbout : takeoff climbout : initial
Route In Use	departure sid : sid
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller non radar : 5 controller radar : 10 controller supervisory : 3
ASRS Report	403033
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	Other
Miss Distance	horizontal : 1935 vertical : 600
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Air carrier X B737 was on a 5 mi final at 4000 ft. Pilot asked if he was cleared for approach. I asked the pilot if he could make it. His reply was I think so. I cleared the air carrier X for a visual approach. The air carrier X was in the clouds. I then cleared the air carrier X for the ILS. After 1 min the air carrier X advised missed approach. I observed traffic off sfo nebound on a conflicting heading. I climbed air carrier X to 3000 ft with a right turn heading 040 degrees. Small transport Y departed oak climbing to 2000 ft. The aircraft passed within 600 ft. When small transport Y departed it was committed with air carrier X already in the turn.

Original NASA ASRS Text

Title: APCH CTLR TURNED AN ACR B737 ON A MISSED APCH TO RWY 29 AT OAK TO A 040 DEG HDG TO MISS DEP TFC OFF THE SFO ARPT AND INTO THE DEP PATH OF A C500 OFF RWY 27 AT OAK. LTSS OCCURRED APPROX 1-2 NM FROM THE OAK ARPT.

Narrative: ACR X B737 WAS ON A 5 MI FINAL AT 4000 FT. PLT ASKED IF HE WAS CLRED FOR APCH. I ASKED THE PLT IF HE COULD MAKE IT. HIS REPLY WAS I THINK SO. I CLRED THE ACR X FOR A VISUAL APCH. THE ACR X WAS IN THE CLOUDS. I THEN CLRED THE ACR X FOR THE ILS. AFTER 1 MIN THE ACR X ADVISED MISSED APCH. I OBSERVED TFC OFF SFO NEBOUND ON A CONFLICTING HDG. I CLBED ACR X TO 3000 FT WITH A R TURN HDG 040 DEGS. SMT Y DEPARTED OAK CLBING TO 2000 FT. THE ACFT PASSED WITHIN 600 FT. WHEN SMT Y DEPARTED IT WAS COMMITTED WITH ACR X ALREADY IN THE TURN.

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