|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1801 To 2400|
|Locale Reference||airport : ord.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||EMB ERJ 145 ER&LR|
|Flight Phase||ground : position and hold|
ground : takeoff roll
|Affiliation||company : air carrier|
|Function||flight crew : first officer|
|Qualification||pilot : instrument|
pilot : multi engine
pilot : private
pilot : commercial
pilot : cfi
|Experience||flight time last 90 days : 250|
flight time total : 2600
flight time type : 800
|Anomaly||conflict : ground less severe|
non adherence : clearance
non adherence : published procedure
|Problem Areas||ATC Human Performance|
|Primary Problem||ATC Human Performance|
We were told to taxi into position and hold and another aircraft was on a 2.5 mi final and an aircraft had just landed on our runway. Once the aircraft on the runway was clear we were to be ready for an immediate takeoff. Our before takeoff checklist was completed and the captain gave me control of the aircraft. As the aircraft cleared, tower cleared us for takeoff with a left turn. However he confused our call sign on our flight number. He was only operating that runway and cleared us for the immediate takeoff he had previously told us about on runway 27L. Knowing the plane coming in was on short final on our TCASII I advanced the thrust levers forward to avoid a possible situation of trying to decipher who was on the runway. The controller just got confused and said the wrong flight number. As we started to roll the captain keyed the microphone and said our call sign and flight number is rolling for takeoff on runway 27L. The tower came back and said, 'ok, continue, you are cleared.' as we switched to departure they took a normal handoff and the aircraft behind us was able to land safely.
Original NASA ASRS Text
Title: IN POS AND HOLD WITH AN EXPECT IMMEDIATE TKOF CLRNC BECAUSE OF AN ACFT ON FINAL AND ONE ROLLING OUT ON THE SAME RWY AN ATCT LCL CTLR USES THE WRONG CALL SIGN WHEN ISSUING THE CLRNC. NOTING THE APCHING TFC ON HIS TCASII THE HOLDING PLT ELECTS TO BEGIN THE TKOF WHILE ANNOUNCING HIS INTENTION. THE CTLR ACKNOWLEDGES THE TKOF WITH 'CONTINUE, YOU ARE CLRED.'
Narrative: WE WERE TOLD TO TAXI INTO POS AND HOLD AND ANOTHER ACFT WAS ON A 2.5 MI FINAL AND AN ACFT HAD JUST LANDED ON OUR RWY. ONCE THE ACFT ON THE RWY WAS CLR WE WERE TO BE READY FOR AN IMMEDIATE TKOF. OUR BEFORE TKOF CHKLIST WAS COMPLETED AND THE CAPT GAVE ME CTL OF THE ACFT. AS THE ACFT CLRED, TWR CLRED US FOR TKOF WITH A L TURN. HOWEVER HE CONFUSED OUR CALL SIGN ON OUR FLT NUMBER. HE WAS ONLY OPERATING THAT RWY AND CLRED US FOR THE IMMEDIATE TKOF HE HAD PREVIOUSLY TOLD US ABOUT ON RWY 27L. KNOWING THE PLANE COMING IN WAS ON SHORT FINAL ON OUR TCASII I ADVANCED THE THRUST LEVERS FORWARD TO AVOID A POSSIBLE SIT OF TRYING TO DECIPHER WHO WAS ON THE RWY. THE CTLR JUST GOT CONFUSED AND SAID THE WRONG FLT NUMBER. AS WE STARTED TO ROLL THE CAPT KEYED THE MIKE AND SAID OUR CALL SIGN AND FLT NUMBER IS ROLLING FOR TKOF ON RWY 27L. THE TWR CAME BACK AND SAID, 'OK, CONTINUE, YOU ARE CLRED.' AS WE SWITCHED TO DEP THEY TOOK A NORMAL HDOF AND THE ACFT BEHIND US WAS ABLE TO LAND SAFELY.
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.