B767 crew crossed morry above the cleared altitude at runway 13R at dfw.

Attributes
ACN	475319
Time
Date	200006
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl bound lower : 4000 msl bound upper : 5000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d10.tracon
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer only : 13r
Flight Phase	descent : approach
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	475319
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial pilot : multi engine
ASRS Report	475320
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : far non adherence : clearance other anomaly other
Independent Detector	other controllera
Resolutory Action	controller : issued alert
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Crossing altitude misunderstanding. At 5000 ft on approach to dfw runway 13R, ATC gave us clearance for the runway 13R approach. I was flying and engaged approach mode to intercept the GS. As we started out of 5000 ft, the controller said that he told us to cross morry at 4000 ft -- we heard at or above 4000 ft.

Original NASA ASRS Text

Title: B767 CREW CROSSED MORRY ABOVE THE CLRED ALT AT RWY 13R AT DFW.

Narrative: XING ALT MISUNDERSTANDING. AT 5000 FT ON APCH TO DFW RWY 13R, ATC GAVE US CLRNC FOR THE RWY 13R APCH. I WAS FLYING AND ENGAGED APCH MODE TO INTERCEPT THE GS. AS WE STARTED OUT OF 5000 FT, THE CTLR SAID THAT HE TOLD US TO CROSS MORRY AT 4000 FT -- WE HEARD AT OR ABOVE 4000 FT.

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.