B777 crew had altitude overshoot in ZDC class a.

Attributes
ACN	475260
Time
Date	200006
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : emi.vortac
State Reference	MD
Altitude	msl bound lower : 34000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc.artcc
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other other vortac
Flight Phase	cruise : enroute altitude change
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : multi engine
Experience	flight time last 90 days : 150 flight time total : 21000 flight time type : 900
ASRS Report	475260
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	altitude deviation : overshoot non adherence : company policies non adherence : published procedure non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued alert controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Approximately 20 mi southwest EMI at FL310 mach .84 ZDC told us to fly 250 degree heading climb and maintain FL350. First officer asked me if the altitude was FL350 and I said yes. At approximately FL340 center called and said our assigned altitude was FL330. We started to descend and immediately was reclred to FL390.

Original NASA ASRS Text

Title: B777 CREW HAD ALT OVERSHOOT IN ZDC CLASS A.

Narrative: APPROX 20 MI SW EMI AT FL310 MACH .84 ZDC TOLD US TO FLY 250 DEG HDG CLB AND MAINTAIN FL350. FO ASKED ME IF THE ALT WAS FL350 AND I SAID YES. AT APPROX FL340 CTR CALLED AND SAID OUR ASSIGNED ALT WAS FL330. WE STARTED TO DSND AND IMMEDIATELY WAS RECLRED TO FL390.

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.