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A JS41 crew at cho airport inadvertently taxied into position and started to takeoff without a tower clearance.
| Attributes | |
| ACN | 627549 |
| Time | |
| Date | 200408 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cho.airport |
| State Reference | VA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Jetstream 41 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : multi engine pilot : cfi pilot : instrument |
| Experience | flight time last 90 days : 220 flight time total : 5250 flight time type : 2000 |
| ASRS Report | 627549 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : rejected takeoff |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
All pretkof checklists complete. Cho tower asked preceding aircraft (C172) in position on runway 3 what they wanted to do because field went IFR. They requested to go back to gate. They taxied off runway. We called ready. Cho tower apparently told us to taxi into position and hold. Upon completing before takeoff checklist, I xferred controls to copilot. He ran up engine to target EPR at my request and then began to accelerate down the runway. ATC (tower), shortly after takeoff roll, idented us and told us to 'cancel takeoff clearance,' that we 'weren't given a takeoff clearance.' we immediately stopped our roll and exited the runway. I am unsure why I believed we had a takeoff clearance. My first officer on taxi back reflected and said he did say position and hold. We apologized and proceeded to destination without further incident. Not sleeping well the night before might have played a part in why I was inattentive.
Original NASA ASRS Text
Title: A JS41 CREW AT CHO ARPT INADVERTENTLY TAXIED INTO POS AND STARTED TO TKOF WITHOUT A TWR CLRNC.
Narrative: ALL PRETKOF CHKLISTS COMPLETE. CHO TWR ASKED PRECEDING ACFT (C172) IN POS ON RWY 3 WHAT THEY WANTED TO DO BECAUSE FIELD WENT IFR. THEY REQUESTED TO GO BACK TO GATE. THEY TAXIED OFF RWY. WE CALLED READY. CHO TWR APPARENTLY TOLD US TO TAXI INTO POS AND HOLD. UPON COMPLETING BEFORE TKOF CHKLIST, I XFERRED CTLS TO COPLT. HE RAN UP ENG TO TARGET EPR AT MY REQUEST AND THEN BEGAN TO ACCELERATE DOWN THE RWY. ATC (TWR), SHORTLY AFTER TKOF ROLL, IDENTED US AND TOLD US TO 'CANCEL TKOF CLRNC,' THAT WE 'WEREN'T GIVEN A TKOF CLRNC.' WE IMMEDIATELY STOPPED OUR ROLL AND EXITED THE RWY. I AM UNSURE WHY I BELIEVED WE HAD A TKOF CLRNC. MY FO ON TAXI BACK REFLECTED AND SAID HE DID SAY POS AND HOLD. WE APOLOGIZED AND PROCEEDED TO DEST WITHOUT FURTHER INCIDENT. NOT SLEEPING WELL THE NIGHT BEFORE MIGHT HAVE PLAYED A PART IN WHY I WAS INATTENTIVE.
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.