Altitude overshot. ARTCC radar controller hearback.

Attributes
ACN	163431
Time
Date	199011
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : den
State Reference	CO
Altitude	msl bound lower : 15800 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent other
Route In Use	arrival : profile descent
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 7000 flight time type : 100
ASRS Report	163431
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	altitude deviation : overshoot non adherence : clearance
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

At about XA20, denver time we were cleared from 260 to cross kenna intersection, the center says they cleared us to 17000' at kenna. I understood the clearance to be cross kenna at 11000'. I read back 'cross kenna at 11000'.' as we descended through 15800', denver told us to climb to 17000' and that was our clearance altitude. We told them we understood it to be 11000' and that we had read back 11000' to him at the time of the original descent clearance. Center told us to climb back to 17000' but there was no traffic and no conflict. The problem arose because denver didn't hear or didn't respond to our readback of 11000' descent.

Original NASA ASRS Text

Title: ALT OVERSHOT. ARTCC RADAR CTLR HEARBACK.

Narrative: AT ABOUT XA20, DENVER TIME WE WERE CLRED FROM 260 TO CROSS KENNA INTXN, THE CTR SAYS THEY CLRED US TO 17000' AT KENNA. I UNDERSTOOD THE CLRNC TO BE CROSS KENNA AT 11000'. I READ BACK 'CROSS KENNA AT 11000'.' AS WE DSNDED THROUGH 15800', DENVER TOLD US TO CLB TO 17000' AND THAT WAS OUR CLRNC ALT. WE TOLD THEM WE UNDERSTOOD IT TO BE 11000' AND THAT WE HAD READ BACK 11000' TO HIM AT THE TIME OF THE ORIGINAL DSNT CLRNC. CTR TOLD US TO CLB BACK TO 17000' BUT THERE WAS NO TFC AND NO CONFLICT. THE PROB AROSE BECAUSE DENVER DIDN'T HEAR OR DIDN'T RESPOND TO OUR READBACK OF 11000' DSNT.

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.