Altitude deviation altitude overshot in descent. Altitude excursion. Non adherence to ATC clearance.

Attributes
ACN	305980
Time
Date	199505
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dus
State Reference	FO
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dus
Operator	common carrier : air carrier
Make Model Name	B767-300 and 300 ER
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	305980
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
Resolutory Action	controller : issued new clearance other
Consequence	Other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	Pilot Deviation

Narrative:

Letdown into dus, dus control instructed us to descend to FL100. Instruction was repeated by first officer and 10000 ft set and confirmed by captain, per air carrier operations. Passing 10500 ft dus control stated was cleared to FL110 and to continue now to FL100. No traffic was observed or told about by dus control.

Original NASA ASRS Text

Title: ALTDEV ALT OVERSHOT IN DSCNT. ALT EXCURSION. NON ADHERENCE TO ATC CLRNC.

Narrative: LETDOWN INTO DUS, DUS CTL INSTRUCTED US TO DSND TO FL100. INSTRUCTION WAS REPEATED BY FO AND 10000 FT SET AND CONFIRMED BY CAPT, PER ACR OPS. PASSING 10500 FT DUS CTL STATED WAS CLRED TO FL110 AND TO CONTINUE NOW TO FL100. NO TFC WAS OBSERVED OR TOLD ABOUT BY DUS CTL.

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.