DC10 flight crew took clearance of another aircraft.

Attributes
ACN	453861
Time
Date	199911
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mco.airport
State Reference	FL
Altitude	msl bound lower : 4000 msl bound upper : 8000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mco.tracon
Operator	common carrier : air carrier
Make Model Name	DC-10 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mco.tracon
Operator	general aviation : corporate
Make Model Name	Gates Learjet Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : vacating altitude
Route In Use	departure : on vectors
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : commercial pilot : instrument pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 13000 flight time type : 6000
ASRS Report	453861
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 50 flight time total : 6000 flight time type : 200
ASRS Report	453860
Events
Anomaly	non adherence : published procedure non adherence : far other spatial deviation
Independent Detector	other controllerb
Resolutory Action	controller : issued alert controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Heard and read back clearance 'turn left heading 270 degrees, climb and maintain 8000 ft.' climbing out of 6500 ft, departure controller said 'maintain 7000 ft' and said we took a learjet's clearance. All 3 crew members heard the same clearance. Supplemental information from acn 453860: after takeoff, ATC gave us a clearance up to 8000 ft and a heading of 270 degrees. We made the turn after acknowledging the call. After making the turn and climbing from approximately 4500 ft to 7000 ft, we were informed by ATC that we were not given the clearance that I had read back and we had flown. We were given a new vector and speed restr so that we would not interfere with other traffic. We were then told of a learjet with a similar call sign.

Original NASA ASRS Text

Title: DC10 FLC TOOK CLRNC OF ANOTHER ACFT.

Narrative: HEARD AND READ BACK CLRNC 'TURN L HDG 270 DEGS, CLB AND MAINTAIN 8000 FT.' CLBING OUT OF 6500 FT, DEP CTLR SAID 'MAINTAIN 7000 FT' AND SAID WE TOOK A LEARJET'S CLRNC. ALL 3 CREW MEMBERS HEARD THE SAME CLRNC. SUPPLEMENTAL INFO FROM ACN 453860: AFTER TKOF, ATC GAVE US A CLRNC UP TO 8000 FT AND A HDG OF 270 DEGS. WE MADE THE TURN AFTER ACKNOWLEDGING THE CALL. AFTER MAKING THE TURN AND CLBING FROM APPROX 4500 FT TO 7000 FT, WE WERE INFORMED BY ATC THAT WE WERE NOT GIVEN THE CLRNC THAT I HAD READ BACK AND WE HAD FLOWN. WE WERE GIVEN A NEW VECTOR AND SPD RESTR SO THAT WE WOULD NOT INTERFERE WITH OTHER TFC. WE WERE THEN TOLD OF A LEARJET WITH A SIMILAR CALL SIGN.

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.