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ZKC controller experienced operational error at FL310 when climbing aircraft was issued intermediate altitude; but aircraft misunderstood the clearance.
| Attributes | |
| ACN | 685598 |
| Time | |
| Date | 200601 |
| Place | |
| Locale Reference | navaid : cnu.vor |
| State Reference | KS |
| Altitude | msl single value : 31000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | general aviation : corporate |
| Make Model Name | HS 125 Series |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zkc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 685598 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 14400 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
H25 initially was climbed to FL310 on a radar vector behind additional traffic descending into mci. When it became apparent that this vector would not take him behind this traffic; I issued clearance to H25; revised altitude maintain FL300. Pilot's readback was 'ok will check with you.' at FL300 pilot continued climb to FL310 when questioned further stated he understood advise FL300.
Original NASA ASRS Text
Title: ZKC CTLR EXPERIENCED OPERROR AT FL310 WHEN CLBING ACFT WAS ISSUED INTERMEDIATE ALT; BUT ACFT MISUNDERSTOOD THE CLRNC.
Narrative: H25 INITIALLY WAS CLBED TO FL310 ON A RADAR VECTOR BEHIND ADDITIONAL TFC DSNDING INTO MCI. WHEN IT BECAME APPARENT THAT THIS VECTOR WOULD NOT TAKE HIM BEHIND THIS TFC; I ISSUED CLRNC TO H25; REVISED ALT MAINTAIN FL300. PLT'S READBACK WAS 'OK WILL CHK WITH YOU.' AT FL300 PLT CONTINUED CLB TO FL310 WHEN QUESTIONED FURTHER STATED HE UNDERSTOOD ADVISE FL300.
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.