Altitude deviation altitude overshot in descent.

Attributes
ACN	246404
Time
Date	199306
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : bal
State Reference	MD
Altitude	msl bound lower : 9500 msl bound upper : 10000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca tracon : gjt
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : instrument pilot : commercial
Experience	flight time last 90 days : 120 flight time total : 4000 flight time type : 700
ASRS Report	246404
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance other anomaly other
Independent Detector	other controllera other flight crewa
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Flight on sun (lga-dca) was uneventful until controller asked us to speed up to and maintain 350 KIAS. We were subsequently given clearance to descend to 10000 ft. Upon switching controllers to washington approach, I checked us in passing '10.8 for 10000 ft.' we were still at 350 KIAS which is unusual for us (300 KIAS normal). I turned to discuss something for a second with the flight engineer. We flew through 10000 ft and bottomed at 9500 while the captain was gradually pulling up to 10000 ft. The controller called us to inquire about our altitude and cleared us down to 9000 ft. Contributing factors: unusual airspeed demand for descent (350 KTS). Momentary inattn at level-off altitude by first officer and flight engineer. Pilot error by captain on level-off technique at unusually high airspeed.

Original NASA ASRS Text

Title: ALT DEV ALT OVERSHOT IN DSCNT.

Narrative: FLT ON SUN (LGA-DCA) WAS UNEVENTFUL UNTIL CTLR ASKED US TO SPD UP TO AND MAINTAIN 350 KIAS. WE WERE SUBSEQUENTLY GIVEN CLRNC TO DSND TO 10000 FT. UPON SWITCHING CTLRS TO WASHINGTON APCH, I CHKED US IN PASSING '10.8 FOR 10000 FT.' WE WERE STILL AT 350 KIAS WHICH IS UNUSUAL FOR US (300 KIAS NORMAL). I TURNED TO DISCUSS SOMETHING FOR A SECOND WITH THE FE. WE FLEW THROUGH 10000 FT AND BOTTOMED AT 9500 WHILE THE CAPT WAS GRADUALLY PULLING UP TO 10000 FT. THE CTLR CALLED US TO INQUIRE ABOUT OUR ALT AND CLRED US DOWN TO 9000 FT. CONTRIBUTING FACTORS: UNUSUAL AIRSPD DEMAND FOR DSCNT (350 KTS). MOMENTARY INATTN AT LEVEL-OFF ALT BY FO AND FE. PLT ERROR BY CAPT ON LEVEL-OFF TECHNIQUE AT UNUSUALLY HIGH AIRSPD.

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.