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Unauthorized takeoff -- air carrier is told to taxi onto the runway and be prepared for an immediate takeoff and that there was an aircraft on final approach. The flight crew rolled onto the runway and the captain spooled up the engines and said to the first officer 'you got the aircraft.'
| Attributes | |
| ACN | 316040 |
| Time | |
| Date | 199509 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : msp |
| State Reference | MN |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 190 flight time total : 3900 flight time type : 1500 |
| ASRS Report | 316040 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 207 flight time total : 18300 flight time type : 13100 |
| ASRS Report | 316279 |
| Events | |
| Anomaly | incursion : runway non adherence : far non adherence : published procedure |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On taxi out tower changed runway for takeoff from runway 11R to runway 11L. Crew was conducting taxi checklist. So stopped checklist to check runway takeoff weight and recalculate reduced thrust. After that, the taxi checklist was restarted and finished as we approached the runway. First officer switched to tower as the tower controller was calling flight to give it clearance on to runway. Tower controller seemed agitated that our flight was not up on tower sooner and cleared us onto the runway. The crew read back clearance and completed before takeoff checklist. Captain turned over to first officer. Both so and first officer asked captain if flight was cleared for takeoff. Captain said yes, and flight departed airport. Once flight was safely airborne, tower informed crew that they were now cleared for takeoff. The conversation between our flight and the tower as we came up on tower frequency is what led to this problem. The tower controller added his aggravation to the clearance which caused captain to 'think' that the tower wanted flight to takeoff as quick as possible. Both first officer and so were not sure if a takeoff clearance had been received, but captain seemed extra sure that we had. First officer was training instructor who had returned to line after a number of months in training.
Original NASA ASRS Text
Title: UNAUTH TKOF -- ACR IS TOLD TO TAXI ONTO THE RWY AND BE PREPARED FOR AN IMMEDIATE TKOF AND THAT THERE WAS AN ACFT ON FINAL APCH. THE FLC ROLLED ONTO THE RWY AND THE CAPT SPOOLED UP THE ENGS AND SAID TO THE FO 'YOU GOT THE ACFT.'
Narrative: ON TAXI OUT TWR CHANGED RWY FOR TKOF FROM RWY 11R TO RWY 11L. CREW WAS CONDUCTING TAXI CHKLIST. SO STOPPED CHKLIST TO CHK RWY TKOF WT AND RECALCULATE REDUCED THRUST. AFTER THAT, THE TAXI CHKLIST WAS RESTARTED AND FINISHED AS WE APCHED THE RWY. FO SWITCHED TO TWR AS THE TWR CTLR WAS CALLING FLT TO GIVE IT CLRNC ON TO RWY. TWR CTLR SEEMED AGITATED THAT OUR FLT WAS NOT UP ON TWR SOONER AND CLRED US ONTO THE RWY. THE CREW READ BACK CLRNC AND COMPLETED BEFORE TKOF CHKLIST. CAPT TURNED OVER TO FO. BOTH SO AND FO ASKED CAPT IF FLT WAS CLRED FOR TKOF. CAPT SAID YES, AND FLT DEPARTED ARPT. ONCE FLT WAS SAFELY AIRBORNE, TWR INFORMED CREW THAT THEY WERE NOW CLRED FOR TKOF. THE CONVERSATION BTWN OUR FLT AND THE TWR AS WE CAME UP ON TWR FREQ IS WHAT LED TO THIS PROB. THE TWR CTLR ADDED HIS AGGRAVATION TO THE CLRNC WHICH CAUSED CAPT TO 'THINK' THAT THE TWR WANTED FLT TO TKOF AS QUICK AS POSSIBLE. BOTH FO AND SO WERE NOT SURE IF A TKOF CLRNC HAD BEEN RECEIVED, BUT CAPT SEEMED EXTRA SURE THAT WE HAD. FO WAS TRAINING INSTRUCTOR WHO HAD RETURNED TO LINE AFTER A NUMBER OF MONTHS IN TRAINING.
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.