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A C650 departed CTAF sdl IFR without an ATC release because the first officer misunderstood ATC's departure release.
| Attributes | |
| ACN | 723728 |
| Time | |
| Date | 200701 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sdl.airport |
| State Reference | AZ |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Citation III VI VII |
| Operating Under FAR Part | Part 91 |
| Flight Phase | ground : taxi |
| Route In Use | departure sid : n/s |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 7800 flight time type : 1000 |
| ASRS Report | 723728 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Events | |
| Anomaly | airspace violation : entry non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
The tower had closed for the night; however; as we taxied our citation III for departure at sdl there were still 4 or 5 airplanes taking off or landing at the now-uncontrolled airport. I wanted to remain situationally-aware of the traffic at the airport; so I remained on CTAF and had my copilot go off on the other radio and call phx approach control for an IFR departure release. My copilot came back and said we were 'cleared to go' behind a landing hawker jet. After the hawker landed we departed but when we contacted departure control and reported airborne climbing to 5000 ft the controller was surprised and asked if we had departed VFR. It occurred to me that a departure release should have included a time and void time. I suspect what the approach controller told my copilot was to 'expect to depart' behind the hawker; which is not a departure release. Later in the flight we discussed my concern and my copilot wasn't able to tell me what the controller's words were; so that made me even more suspicious. Fortunately; conditions were VFR. In the future I'll monitor the other radio with the copilot.
Original NASA ASRS Text
Title: A C650 DEPARTED CTAF SDL IFR WITHOUT AN ATC RELEASE BECAUSE THE FO MISUNDERSTOOD ATC'S DEP RELEASE.
Narrative: THE TWR HAD CLOSED FOR THE NIGHT; HOWEVER; AS WE TAXIED OUR CITATION III FOR DEP AT SDL THERE WERE STILL 4 OR 5 AIRPLANES TAKING OFF OR LNDG AT THE NOW-UNCTLED ARPT. I WANTED TO REMAIN SITUATIONALLY-AWARE OF THE TFC AT THE ARPT; SO I REMAINED ON CTAF AND HAD MY COPLT GO OFF ON THE OTHER RADIO AND CALL PHX APCH CTL FOR AN IFR DEP RELEASE. MY COPLT CAME BACK AND SAID WE WERE 'CLRED TO GO' BEHIND A LNDG HAWKER JET. AFTER THE HAWKER LANDED WE DEPARTED BUT WHEN WE CONTACTED DEP CTL AND RPTED AIRBORNE CLBING TO 5000 FT THE CTLR WAS SURPRISED AND ASKED IF WE HAD DEPARTED VFR. IT OCCURRED TO ME THAT A DEP RELEASE SHOULD HAVE INCLUDED A TIME AND VOID TIME. I SUSPECT WHAT THE APCH CTLR TOLD MY COPLT WAS TO 'EXPECT TO DEPART' BEHIND THE HAWKER; WHICH IS NOT A DEP RELEASE. LATER IN THE FLT WE DISCUSSED MY CONCERN AND MY COPLT WASN'T ABLE TO TELL ME WHAT THE CTLR'S WORDS WERE; SO THAT MADE ME EVEN MORE SUSPICIOUS. FORTUNATELY; CONDITIONS WERE VFR. IN THE FUTURE I'LL MONITOR THE OTHER RADIO WITH THE COPLT.
Data retrieved from NASA's ASRS site as of January 2009 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.