Narrative:

Aircraft X on a bay tour southeast to northwest at 3500 ft to pass about 1 mi west of sfo VOR. Aircraft X was pointed out to me (sfo) by nct (sutro) as 'miss my traffic by stopping conflicting departures at 3000 ft.' when I cleared aircraft Y; a B737; for takeoff runway 28L; he was on the cuit 2 departure; to turn right heading 030 degrees to intercept and proceed sfo 342 degree radial. When I cleared the B737 aircraft Y for takeoff; aircraft X was at 3500 ft and I was monitoring the ground track to see if the 2 aircraft would conflict. When the B737 aircraft Y became airborne; the ground track of aircraft X dictated the need to altitude restrict the B737 aircraft Y. The problem is that nct descended aircraft X; so I had the B737 aircraft Y stopping at 3000 ft; with aircraft X descending through 3200 ft; to meet/merge at the 342 degree radial 2.5 DME. I solved the conflict via visual separation and instructed the B737 aircraft Y to continue heading 030 degrees not to intercept and proceed the sfo 342 radial. When my supervisor inquired with the controller in charge for the area at nct; he found out the controller in charge was the one working the sector; and didn't think we were on the noise abatement procedures; rather the shoreline 1.

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Original NASA ASRS Text

Title: SFO LCL CTLR INITIATED TWR VISUAL SEPARATION BTWN OVERFLT AND RWY 28 DEP ACFT WHEN NCT CTLR ISSUED AN UNEXPECTED DSCNT CLRNC.

Narrative: ACFT X ON A BAY TOUR SE TO NW AT 3500 FT TO PASS ABOUT 1 MI W OF SFO VOR. ACFT X WAS POINTED OUT TO ME (SFO) BY NCT (SUTRO) AS 'MISS MY TFC BY STOPPING CONFLICTING DEPS AT 3000 FT.' WHEN I CLRED ACFT Y; A B737; FOR TKOF RWY 28L; HE WAS ON THE CUIT 2 DEP; TO TURN R HDG 030 DEGS TO INTERCEPT AND PROCEED SFO 342 DEG RADIAL. WHEN I CLRED THE B737 ACFT Y FOR TKOF; ACFT X WAS AT 3500 FT AND I WAS MONITORING THE GND TRACK TO SEE IF THE 2 ACFT WOULD CONFLICT. WHEN THE B737 ACFT Y BECAME AIRBORNE; THE GND TRACK OF ACFT X DICTATED THE NEED TO ALT RESTRICT THE B737 ACFT Y. THE PROB IS THAT NCT DSNDED ACFT X; SO I HAD THE B737 ACFT Y STOPPING AT 3000 FT; WITH ACFT X DSNDING THROUGH 3200 FT; TO MEET/MERGE AT THE 342 DEG RADIAL 2.5 DME. I SOLVED THE CONFLICT VIA VISUAL SEPARATION AND INSTRUCTED THE B737 ACFT Y TO CONTINUE HDG 030 DEGS NOT TO INTERCEPT AND PROCEED THE SFO 342 RADIAL. WHEN MY SUPVR INQUIRED WITH THE CIC FOR THE AREA AT NCT; HE FOUND OUT THE CIC WAS THE ONE WORKING THE SECTOR; AND DIDN'T THINK WE WERE ON THE NOISE ABATEMENT PROCS; RATHER THE SHORELINE 1.

Data retrieved from NASA's ASRS site as of January 2009 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.