There are two procedures for reduced spacing of aircraft on parallel final approaches at sfo. The re...

Attributes
ACN	1303361
Time
Date	201510
Local Time Of Day	1801-2400
Place
Locale Reference	SFO.Airport
State Reference	CA
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Make Model Name	Citationjet (C525/C526) - CJ I / II / III / IV
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	IFR
Aircraft 2
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 129
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	IFR
Person 1
Function	Local
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 15.8
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance

Narrative:

We were advertising simultaneous offset instrument approaches runway 28L&right. We were able to see the arrivals around the san mateo bridge during the session. There were aircraft lining up on final to ILS runway 28 right and left instead of the offset localizer runway 28R. While I was writing down the call-signs; the finals controller called and said this pair were on closely spaced parallel (csp) approaches - meaning the two could reduce to 1.5 miles staggered ILS approaches. I really don't think this was legal as we are required to advertise particular language on the ATIS notifying the pilots of the reduced separation. With that; I acknowledged the call as opposed to arguing about it. Based on csp arrivals separation; they were good all the way down. Not make up the approaches along the way to accommodate a situation that just isn't working.

Original NASA ASRS Text

Title: There are two procedures for reduced spacing of aircraft on parallel final approaches at SFO. The reporter stated the TRACON changed from one procedure to the other without the proper ATIS broadcast.

Narrative: We were advertising Simultaneous Offset Instrument Approaches Runway 28L&R. We were able to see the arrivals around the San Mateo Bridge during the session. There were aircraft lining up on final to ILS Runway 28 Right and Left instead of the offset Localizer Runway 28R. While I was writing down the call-signs; the finals controller called and said this pair were on Closely Spaced Parallel (CSP) approaches - meaning the two could reduce to 1.5 miles staggered ILS approaches. I really don't think this was legal as we are required to advertise particular language on the ATIS notifying the pilots of the reduced separation. With that; I acknowledged the call as opposed to arguing about it. Based on CSP arrivals separation; they were good all the way down. Not make up the approaches along the way to accommodate a situation that just isn't working.

Data retrieved from NASA's ASRS site 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.

There are two procedures for reduced spacing of aircraft on parallel final approaches at sfo. The reporter stated the TRACON changed from one procedure to the other without the proper ATIS broadcast.