B737-700 flight crew exceeds speed restr below 10000 ft and class B airspace.

Attributes
ACN	701793
Time
Date	200606
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : sli.vortac
State Reference	CA
Altitude	agl single value : 13 msl single value : 5000
Environment
Flight Conditions	Mixed
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : sct.tracon
Operator	common carrier : air carrier
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 8500
ASRS Report	701793
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 240 flight time total : 8000 flight time type : 4210
ASRS Report	701792
Events
Anomaly	non adherence : far other anomaly
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented
Supplementary
Problem Areas	Airspace Structure Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Flying to sna via coast 5 departure. 37 mins late due to unscheduled aircraft swap. Cleared to descend to 5000 ft approaching sxc. The first officer asked if he could keep his cruise descent speed up below 10000 ft since we were more than 12 mi offshore. I said 'good idea.' it was a bad idea. As we were given a vector toward sna; we were given a frequency change and received pop-up TCAS traffic at the same time. I bumbled the frequency change while looking for VFR traffic and by the time I got us on the correct frequency; the controller asked us on initial call if we were a life flight. I knew then that we had forgotten to slow as we were turned toward the shore. We immediately slowed to 200 KTS. While both of us were looking for the VFR traffic and I was trying to fix my mistake with the radio frequency; we had forgotten to slow to 250 KTS prior to 12 mi from the shore and were about to fly under lax class B airspace. In retrospect; the time savings by exceeding 250 KTS below 10000 ft more than 12 mi offshore on that route is minimal and not worth the added workload in the high workload environment of southern california. Supplemental information from acn 701792: self-induced hurry-up offense mode. Increased workload below 10000 ft; flying fast below 10000 ft more than 12 mi from coastline.

Original NASA ASRS Text

Title: B737-700 FLT CREW EXCEEDS SPD RESTR BELOW 10000 FT AND CLASS B AIRSPACE.

Narrative: FLYING TO SNA VIA COAST 5 DEP. 37 MINS LATE DUE TO UNSCHEDULED ACFT SWAP. CLRED TO DSND TO 5000 FT APCHING SXC. THE FO ASKED IF HE COULD KEEP HIS CRUISE DSCNT SPD UP BELOW 10000 FT SINCE WE WERE MORE THAN 12 MI OFFSHORE. I SAID 'GOOD IDEA.' IT WAS A BAD IDEA. AS WE WERE GIVEN A VECTOR TOWARD SNA; WE WERE GIVEN A FREQ CHANGE AND RECEIVED POP-UP TCAS TFC AT THE SAME TIME. I BUMBLED THE FREQ CHANGE WHILE LOOKING FOR VFR TFC AND BY THE TIME I GOT US ON THE CORRECT FREQ; THE CTLR ASKED US ON INITIAL CALL IF WE WERE A LIFE FLT. I KNEW THEN THAT WE HAD FORGOTTEN TO SLOW AS WE WERE TURNED TOWARD THE SHORE. WE IMMEDIATELY SLOWED TO 200 KTS. WHILE BOTH OF US WERE LOOKING FOR THE VFR TFC AND I WAS TRYING TO FIX MY MISTAKE WITH THE RADIO FREQ; WE HAD FORGOTTEN TO SLOW TO 250 KTS PRIOR TO 12 MI FROM THE SHORE AND WERE ABOUT TO FLY UNDER LAX CLASS B AIRSPACE. IN RETROSPECT; THE TIME SAVINGS BY EXCEEDING 250 KTS BELOW 10000 FT MORE THAN 12 MI OFFSHORE ON THAT RTE IS MINIMAL AND NOT WORTH THE ADDED WORKLOAD IN THE HIGH WORKLOAD ENVIRONMENT OF SOUTHERN CALIFORNIA. SUPPLEMENTAL INFO FROM ACN 701792: SELF-INDUCED HURRY-UP OFFENSE MODE. INCREASED WORKLOAD BELOW 10000 FT; FLYING FAST BELOW 10000 FT MORE THAN 12 MI FROM COASTLINE.

Data retrieved from NASA's ASRS site as of January 2009 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.