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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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A CL65 air carrier flight crew climbed above 10000 ft toward their assigned altitude of 12000 ft when the departure controller asked them about their altitude. The flight crew thought that they had been assigned 12000 ft and the departure controller thought that 10000 ft was the correct altitude. They descended to 10000 ft at the controller's request.
| Attributes | |
| ACN | 381000 |
| Time | |
| Date | 199709 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : cmh |
| State Reference | OH |
| Altitude | msl bound lower : 10000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : cmh tower : lax |
| Operator | common carrier : air carrier |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 250 flight time total : 18500 flight time type : 2500 |
| ASRS Report | 381000 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 7000 flight time type : 2000 |
| ASRS Report | 380930 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to intended course or assigned course other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Climbing to assigned altitude of 12000 ft, PIC as PF. Passing about 11300 ft, departure/cmh asked what altitude we were climbing to and may have said 'going to 12000 ft?' in a question. He then asked what we were assigned. We checked with each other to be certain and replied '12000 ft assigned,' which was also on the autoplt altitude pre-select. He said we should be at 10000 ft and told us to descend to 10000 ft. We complied. ATC again asked if we were assigned 10000 ft and when we responded 12000 ft, he said 'someone made a mistake.' our ATC clearance for the short flight had been '5000 ft expect 10000 ft.' however, when cleared to 12000 ft during climb out, did not think that unusual since 12000 ft is the norm for jet arrs on that STAR into cvg.
Original NASA ASRS Text
Title: A CL65 ACR FLC CLBED ABOVE 10000 FT TOWARD THEIR ASSIGNED ALT OF 12000 FT WHEN THE DEP CTLR ASKED THEM ABOUT THEIR ALT. THE FLC THOUGHT THAT THEY HAD BEEN ASSIGNED 12000 FT AND THE DEP CTLR THOUGHT THAT 10000 FT WAS THE CORRECT ALT. THEY DSNDED TO 10000 FT AT THE CTLR'S REQUEST.
Narrative: CLBING TO ASSIGNED ALT OF 12000 FT, PIC AS PF. PASSING ABOUT 11300 FT, DEP/CMH ASKED WHAT ALT WE WERE CLBING TO AND MAY HAVE SAID 'GOING TO 12000 FT?' IN A QUESTION. HE THEN ASKED WHAT WE WERE ASSIGNED. WE CHKED WITH EACH OTHER TO BE CERTAIN AND REPLIED '12000 FT ASSIGNED,' WHICH WAS ALSO ON THE AUTOPLT ALT PRE-SELECT. HE SAID WE SHOULD BE AT 10000 FT AND TOLD US TO DSND TO 10000 FT. WE COMPLIED. ATC AGAIN ASKED IF WE WERE ASSIGNED 10000 FT AND WHEN WE RESPONDED 12000 FT, HE SAID 'SOMEONE MADE A MISTAKE.' OUR ATC CLRNC FOR THE SHORT FLT HAD BEEN '5000 FT EXPECT 10000 FT.' HOWEVER, WHEN CLRED TO 12000 FT DURING CLBOUT, DID NOT THINK THAT UNUSUAL SINCE 12000 FT IS THE NORM FOR JET ARRS ON THAT STAR INTO CVG.
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.