B737-800
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 150; Flight Crew Total 1256; Flight Crew Type 950
Confusion; Situational Awareness; Time Pressure; Workload
ATC Issue All Types; Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew FLC complied w / Automation / Advisory
Airspace Structure; Procedure
ATC instructed us to accelerate to 280 kts as soon as possible on FIXIT departure off of 24L at LAX (straight west ground track). We are not sure whether or not we were outside the 12 NM national airspace buffer prior to accelerating above 250 kts.
B737-800 First Officer reported SCT requested their flight accelerate to 280 kts as soon as possible after departing on the LAX FIXIT RNAV. The crew was uncertain if they were outside the 12 NM US airspace buffer and legal to exceed 250 kts below 10;000 FT.