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C550 PIC questions first officer perception of receiving takeoff clearance when first officer applies power. PIC asks tower, who advises 'you weren't.' takeoff clearance received as C550 is rolling down the runway.
| Attributes | |
| ACN | 429296 |
| Time | |
| Date | 199902 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bos.airport |
| State Reference | MA |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : bos.tower |
| Operator | general aviation : corporate |
| Make Model Name | Citation II S2/Bravo |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 3700 flight time type : 500 |
| ASRS Report | 429296 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were cleared into position and hold. We continued through the checklist and the PF said we were cleared for takeoff. I, at that moment, wasn't sure. He was confident we were and pushed the power up. We started rolling and I queried ATC about takeoff clearance. At this point we were probably about 200 ft down the 7000 ft runway. ATC's response was something like, 'well, you weren't, but I guess you are now -- cleared for takeoff.' I read back, 'cleared for takeoff' and we continued uneventfully. This was a classic case of bad CRM. I should have queried the PF and ATC before we got that far. There is no reason for a mistake of that nature to have been made.
Original NASA ASRS Text
Title: C550 PIC QUESTIONS FO PERCEPTION OF RECEIVING TKOF CLRNC WHEN FO APPLIES PWR. PIC ASKS TWR, WHO ADVISES 'YOU WEREN'T.' TKOF CLRNC RECEIVED AS C550 IS ROLLING DOWN THE RWY.
Narrative: WE WERE CLRED INTO POS AND HOLD. WE CONTINUED THROUGH THE CHKLIST AND THE PF SAID WE WERE CLRED FOR TKOF. I, AT THAT MOMENT, WASN'T SURE. HE WAS CONFIDENT WE WERE AND PUSHED THE PWR UP. WE STARTED ROLLING AND I QUERIED ATC ABOUT TKOF CLRNC. AT THIS POINT WE WERE PROBABLY ABOUT 200 FT DOWN THE 7000 FT RWY. ATC'S RESPONSE WAS SOMETHING LIKE, 'WELL, YOU WEREN'T, BUT I GUESS YOU ARE NOW -- CLRED FOR TKOF.' I READ BACK, 'CLRED FOR TKOF' AND WE CONTINUED UNEVENTFULLY. THIS WAS A CLASSIC CASE OF BAD CRM. I SHOULD HAVE QUERIED THE PF AND ATC BEFORE WE GOT THAT FAR. THERE IS NO REASON FOR A MISTAKE OF THAT NATURE TO HAVE BEEN MADE.
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.