Speed deviation below 10000 ft.

Attributes
ACN	308862
Time
Date	199506
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : lax
State Reference	CA
Altitude	msl bound lower : 7000 msl bound upper : 8000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : lax
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	approach : straight in arrival other arrival star : star enroute airway : zla
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	other other : other pilot : atp
Experience	flight time last 90 days : 220 flight time total : 10000 flight time type : 1200
ASRS Report	309862
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 17500 flight time type : 1600
ASRS Report	308550
Events
Anomaly	non adherence : far other anomaly
Independent Detector	other controllera
Resolutory Action	flight crew : became reoriented other
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Late evening arrival to lax from east coast. Crew is east coast based and body time was XA20. Crew was quite fatigued due to the late hour and not used to being awake at that time. Cleared on civet arrival to maintain 320 KTS or greater. At arnes, cleared for ILS runway 25L. Autoplt was on and approach mode was selected. GS and localizer were captured, airspeed 320 KTS. I became boresighted upon xchking ILS DME and altitudes after crossing arnes. Aircraft was clean, idle power and stable on GS at 320 IAS. Approach questioned our airspeed and we suddenly realized I had forgotten to slow at 10000 ft. I had tunnel vision on maintaining GS and complying with altitude stepdowns. We immediately slowed down. No conflict occurred. Extreme fatigue was the primary cause of this situation. Perhaps the airline should schedule west coast based crews on this leg.

Original NASA ASRS Text

Title: SPD DEV BELOW 10000 FT.

Narrative: LATE EVENING ARR TO LAX FROM E COAST. CREW IS E COAST BASED AND BODY TIME WAS XA20. CREW WAS QUITE FATIGUED DUE TO THE LATE HR AND NOT USED TO BEING AWAKE AT THAT TIME. CLRED ON CIVET ARR TO MAINTAIN 320 KTS OR GREATER. AT ARNES, CLRED FOR ILS RWY 25L. AUTOPLT WAS ON AND APCH MODE WAS SELECTED. GS AND LOC WERE CAPTURED, AIRSPD 320 KTS. I BECAME BORESIGHTED UPON XCHKING ILS DME AND ALTS AFTER XING ARNES. ACFT WAS CLEAN, IDLE PWR AND STABLE ON GS AT 320 IAS. APCH QUESTIONED OUR AIRSPD AND WE SUDDENLY REALIZED I HAD FORGOTTEN TO SLOW AT 10000 FT. I HAD TUNNEL VISION ON MAINTAINING GS AND COMPLYING WITH ALT STEPDOWNS. WE IMMEDIATELY SLOWED DOWN. NO CONFLICT OCCURRED. EXTREME FATIGUE WAS THE PRIMARY CAUSE OF THIS SIT. PERHAPS THE AIRLINE SHOULD SCHEDULE W COAST BASED CREWS ON THIS LEG.

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.