An MD80 flight crew took another aircraft's clearance which was not discovered in the readback.

Attributes
ACN	524330
Time
Date	200108
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : hou.airport
State Reference	TX
Altitude	msl single value : 4000
Environment
Flight Conditions	Mixed
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Flight Phase	descent : approach descent : intermediate altitude
Route In Use	arrival star : rockit
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : flight engineer pilot : commercial pilot : atp pilot : instrument
Experience	flight time last 90 days : 250 flight time total : 8000 flight time type : 2000
ASRS Report	524336
Events
Anomaly	non adherence : clearance other spatial deviation
Resolutory Action	controller : issued advisory flight crew : returned to intended or assigned course
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	ATC Human Performance

Narrative:

Initially told by approach to depart akeem on rockit arrival heading 260 degrees. At akeem we both heard depart akeem heading 290 degrees and acknowledged, later approach said we were supposed to be on 260 degrees and 290 degrees was for another aircraft.

Original NASA ASRS Text

Title: AN MD80 FLT CREW TOOK ANOTHER ACFT'S CLRNC WHICH WAS NOT DISCOVERED IN THE READBACK.

Narrative: INITIALLY TOLD BY APCH TO DEPART AKEEM ON ROCKIT ARR HEADING 260 DEGS. AT AKEEM WE BOTH HEARD DEPART AKEEM HEADING 290 DEGS AND ACKNOWLEDGED, LATER APCH SAID WE WERE SUPPOSED TO BE ON 260 DEGS AND 290 DEGS WAS FOR ANOTHER ACFT.

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.