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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A commuter aircraft taxied onto the active runway thinking they had a takeoff clearance. Once on the runway the flight crew had second thoughts and reconfirmed their takeoff clearance with the tower and were told to takeoff or clear the runway. Reporter thinks he'll doublechk with the tower prior to entering the runway if this happens again.
| Attributes | |
| ACN | 356754 |
| Time | |
| Date | 199612 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : tpa |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : den |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : takeoff ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 170 flight time total : 3700 flight time type : 890 |
| ASRS Report | 354754 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance other other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
While proceeding to runway 36L we realized that we needed a revision to our flight plan. Reaching the holding point of runway 36L we advised tower that we needed to readjust our flight plan with clearance delivery requiring approximately 2 mins. After the flight plan adjustment we advised tower that we were ready for departure. At this time it was noted that there was an aircraft on approximately three and a half mi final. We also observed that we were the only aircraft at the departure end of runway 36L. Tower then made a transmission of which the first part was blocked, the second part read 'runway 36L cleared for takeoff.' again noting we were the only aircraft at runway 36L we then responded 'roger flight xyz cleared for takeoff.' we then proceeded to take the runway for immediate departure. At this time my copilot suggested that we reconfirm our clearance for takeoff, I agreed to his suggestion. He then said 'tower reconfirm flight xyz cleared for takeoff.' tower then informed: 'flight xyz cleared for immediate takeoff or clear the runway immediately.' we then made a normal takeoff without incident. In retrospect it may have been better to refuse the takeoff clearance until after the approaching aircraft had already landed. In the future this will be my course of action.
Original NASA ASRS Text
Title: A COMMUTER ACFT TAXIED ONTO THE ACTIVE RWY THINKING THEY HAD A TKOF CLRNC. ONCE ON THE RWY THE FLC HAD SECOND THOUGHTS AND RECONFIRMED THEIR TKOF CLRNC WITH THE TWR AND WERE TOLD TO TKOF OR CLR THE RWY. RPTR THINKS HE'LL DOUBLECHK WITH THE TWR PRIOR TO ENTERING THE RWY IF THIS HAPPENS AGAIN.
Narrative: WHILE PROCEEDING TO RWY 36L WE REALIZED THAT WE NEEDED A REVISION TO OUR FLT PLAN. REACHING THE HOLDING POINT OF RWY 36L WE ADVISED TWR THAT WE NEEDED TO READJUST OUR FLT PLAN WITH CLRNC DELIVERY REQUIRING APPROX 2 MINS. AFTER THE FLT PLAN ADJUSTMENT WE ADVISED TWR THAT WE WERE READY FOR DEP. AT THIS TIME IT WAS NOTED THAT THERE WAS AN ACFT ON APPROX THREE AND A HALF MI FINAL. WE ALSO OBSERVED THAT WE WERE THE ONLY ACFT AT THE DEP END OF RWY 36L. TWR THEN MADE A XMISSION OF WHICH THE FIRST PART WAS BLOCKED, THE SECOND PART READ 'RWY 36L CLRED FOR TKOF.' AGAIN NOTING WE WERE THE ONLY ACFT AT RWY 36L WE THEN RESPONDED 'ROGER FLT XYZ CLRED FOR TKOF.' WE THEN PROCEEDED TO TAKE THE RWY FOR IMMEDIATE DEP. AT THIS TIME MY COPLT SUGGESTED THAT WE RECONFIRM OUR CLRNC FOR TKOF, I AGREED TO HIS SUGGESTION. HE THEN SAID 'TWR RECONFIRM FLT XYZ CLRED FOR TKOF.' TWR THEN INFORMED: 'FLT XYZ CLRED FOR IMMEDIATE TKOF OR CLR THE RWY IMMEDIATELY.' WE THEN MADE A NORMAL TKOF WITHOUT INCIDENT. IN RETROSPECT IT MAY HAVE BEEN BETTER TO REFUSE THE TKOF CLRNC UNTIL AFTER THE APCHING ACFT HAD ALREADY LANDED. IN THE FUTURE THIS WILL BE MY COURSE OF ACTION.
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.