PPRuNe Forums - View Single Post - Near miss with 5 airliners waiting for T/O on taxiway "C" in SFO!
Old 19th Aug 2017, 20:52
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peekay4
 
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CSPR is the concept, it has been around for many years in several different formats and names
What? CSPR is not a "concept". CSPR just means Closely Spaced Parallel Runways, defined as parallel runways closer than 2,500ft.

And .308 did not define a new approach concept, just a change in policy (authorization) on conducting dependent approaches on CSPR pairs, specifically allowing 1.5nm parallel aircraft separation on dependent approaches to CSPRs.

Notice the phrasings in .308 (quoting the latest revision):

Simultaneous Dependent Approaches to Closely Spaced Parallel Runways[/B] ...
7. Procedures.
a. Airport Criteria Allowing Conduct of Simultaneous Dependent Approaches on CSPR ...
b. Procedures for Dependent Approaches to CSPRs. ...
Specific Airports/Runway Geometries Approved for Dependent Approaches to CSPRs
You'll find the same definition used by ICAO, Eurocontrol, etc.

so yes, if you were in there since about 2000, you did fly one of the variants.
Umm, no. Dependent approaches have been around since at least the 1970s, but until 2008 they were not authorized on runways spaced closer than 2,500 ft. The old separation criteria meant approaches to close parallel runways were effectively equivalent to conducting approaches to a single runway only.

And at SFO the 1.5nm separation did not take effect until 28L glideslope changes were made in 2013, as previously discussed.

Different interpretation of DA from the FAA AIM...(SAMUL would be the DA on FMS Bridge Visual)
DA on a visual approach... right...
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