West coast to the Hawaiian islands require 180 ETOPS. (2 Eng.) If your departing Southern California your ETP airports will usually be KSFO and PHTO but there is always the exception with unusual winds that might bring you back to KLAX. Leaving KSEA or KPDX you would have KPDX as your first ETP alternte and then for a period time KSFO would be the active alternate. Finally PHOG would show up as the final ETP alternate. Again unusual winds can cause these alternate to chnange.
Some Honeywell FMC's will allow you to display the Lat/Long on the FIX page, others will not. You can always build the ETPs on the ROUTE Page 2 in that case. The 737 uses a Smiths FMC so I don't know what works best for that airplane.
Use of a plotting chart is beneficial in plotting both the ETPs along with the ETP entry points.
Last edited by Spooky 2; 11th Feb 2012 at 18:47.