Sfo controller described a possible loss of separation event when departure traffic crossing at the ...

Attributes
ACN	935913
Time
Date	201103
Local Time Of Day	0001-0600
Place
Locale Reference	SFO.Airport
State Reference	CA
Aircraft 1
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Aircraft 2
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

Aircraft X departed runway 1R; then aircraft Y departed runway 28L. Aircraft X rotated in the intersection of the runways 1R/28L; aircraft Y rotated in the intersection of the runways as well. Earlier in the session; aircraft Z(B763) and aircraft west(B772) both departing runway 28L; in the same meteorological conditions; rotated after passing through runway 1/right. I believed that aircraft Y would rotate even further down field. Recommendation; I do not know how much more information we can get from the pilots that would provide accurate feedback to expectation of their performance. This has blurred the ability to do the job straightforward; and creates a question of the expected outcome results. I do not know what would bring about a change that needs to happen.

Original NASA ASRS Text

Title: SFO Controller described a possible loss of separation event when departure traffic crossing at the runway intersections may have been technically airborne bring into play additional wake separation criteria.

Narrative: Aircraft X departed Runway 1R; then Aircraft Y departed Runway 28L. Aircraft X rotated in the intersection of the Runways 1R/28L; Aircraft Y rotated in the intersection of the runways as well. Earlier in the session; Aircraft Z(B763) and Aircraft W(B772) both departing Runway 28L; in the same meteorological conditions; rotated after passing through Runway 1/R. I believed that Aircraft Y would rotate even further down field. Recommendation; I do not know how much more information we can get from the pilots that would provide accurate feedback to expectation of their performance. This has blurred the ability to do the job straightforward; and creates a question of the expected outcome results. I do not know what would bring about a change that needs to happen.

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.

Sfo controller described a possible loss of separation event when departure traffic crossing at the runway intersections may have been technically airborne bring into play additional wake separation criteria.