Distraction by a route discontinuity in the FMS, a B777 crew fails to slow to 250 KTS below 10000 ft...

Attributes
ACN	510900
Time
Date	200105
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lax.airport
State Reference	CA
Altitude	msl single value : 8000
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 57 flight time total : 13000 flight time type : 57
ASRS Report	510900
Events
Anomaly	non adherence : far other anomaly
Resolutory Action	flight crew : became reoriented other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On tnp transition pdx 4 runway 25L lax, ATC slowed us to 250 KTS, disconnected autoplt, leveled and slowed. Then ATC speed increased to 280 KTS. Had route discontinuity at arnes intersection. Left it open until cleared for approach. Had to close it quickly to intercept rest of arrival, as clearance limit is fuelr intersection. As we descended through arnes, checking clearance limits, was still at 280 KTS below 10000 ft. Immediately slowed to 250 KTS. Why is route discontinuity not at fuelr, the end of the arrival? Getting distraction by that and hand flying to quickly accommodate ATC contributed to this.

Original NASA ASRS Text

Title: DISTR BY A RTE DISCONTINUITY IN THE FMS, A B777 CREW FAILS TO SLOW TO 250 KTS BELOW 10000 FT.

Narrative: ON TNP TRANSITION PDX 4 RWY 25L LAX, ATC SLOWED US TO 250 KTS, DISCONNECTED AUTOPLT, LEVELED AND SLOWED. THEN ATC SPD INCREASED TO 280 KTS. HAD RTE DISCONTINUITY AT ARNES INTXN. LEFT IT OPEN UNTIL CLRED FOR APCH. HAD TO CLOSE IT QUICKLY TO INTERCEPT REST OF ARR, AS CLRNC LIMIT IS FUELR INTXN. AS WE DSNDED THROUGH ARNES, CHKING CLRNC LIMITS, WAS STILL AT 280 KTS BELOW 10000 FT. IMMEDIATELY SLOWED TO 250 KTS. WHY IS RTE DISCONTINUITY NOT AT FUELR, THE END OF THE ARR? GETTING DISTR BY THAT AND HAND FLYING TO QUICKLY ACCOMMODATE ATC CONTRIBUTED TO THIS.

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.