B727 crew advised that they did not adhere to speed restr in ZLA airspace.

Attributes
ACN	420210
Time
Date	199811
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bty
State Reference	NV
Altitude	msl bound lower : 16000 msl bound upper : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zla
Operator	common carrier : air carrier
Make Model Name	B727-200
Flight Phase	descent other
Route In Use	arrival star : star
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent other
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 190 flight time total : 13200 flight time type : 3200
ASRS Report	420210
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 170 flight time total : 21000 flight time type : 6000
ASRS Report	420209
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

At FL290 we were instructed to maintain 290 KTS. 15 mi after beatty (bty) we were told to cross fuzzy at 16000 ft and 280 KTS. At this point we figured our 290 KT restr had been lifted for several reasons. 1) we would not have been able to make our crossing altitude under normal descent profiles unless we exceeded 290 KTS. 2) we were not asked to maintain either 290 KTS or 280 KTS in the descent. 3) an entirely new clearance had been issued, ie, 'cleared to cross fuzzy at 16000 ft 280 KTS' which we made. On final approach into las we were to call ZLA after landing. When we called we were told there had been a conflict with traffic in front of us. We had the traffic in sight (as we were following it into las vegas) and at no time did we seem to be at its altitude or any closer than 3-4 mi from it.

Original NASA ASRS Text

Title: B727 CREW ADVISED THAT THEY DID NOT ADHERE TO SPD RESTR IN ZLA AIRSPACE.

Narrative: AT FL290 WE WERE INSTRUCTED TO MAINTAIN 290 KTS. 15 MI AFTER BEATTY (BTY) WE WERE TOLD TO CROSS FUZZY AT 16000 FT AND 280 KTS. AT THIS POINT WE FIGURED OUR 290 KT RESTR HAD BEEN LIFTED FOR SEVERAL REASONS. 1) WE WOULD NOT HAVE BEEN ABLE TO MAKE OUR XING ALT UNDER NORMAL DSCNT PROFILES UNLESS WE EXCEEDED 290 KTS. 2) WE WERE NOT ASKED TO MAINTAIN EITHER 290 KTS OR 280 KTS IN THE DSCNT. 3) AN ENTIRELY NEW CLRNC HAD BEEN ISSUED, IE, 'CLRED TO CROSS FUZZY AT 16000 FT 280 KTS' WHICH WE MADE. ON FINAL APCH INTO LAS WE WERE TO CALL ZLA AFTER LNDG. WHEN WE CALLED WE WERE TOLD THERE HAD BEEN A CONFLICT WITH TFC IN FRONT OF US. WE HAD THE TFC IN SIGHT (AS WE WERE FOLLOWING IT INTO LAS VEGAS) AND AT NO TIME DID WE SEEM TO BE AT ITS ALT OR ANY CLOSER THAN 3-4 MI FROM IT.

Data retrieved from NASA's ASRS site as of July 2007 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.