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ZOB associate controller described operational error at FL220 resulting from incorrect use of standard phraseology.
| Attributes | |
| ACN | 693768 |
| Time | |
| Date | 200604 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : rod.vortac |
| State Reference | OH |
| Altitude | msl single value : 22000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Turbulence Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : developmental |
| Experience | controller military : 9 controller radar : 9 controller time certified in position2 : 2 |
| ASRS Report | 693768 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| 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 flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12600 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Improper phraseology was used by the other controller and was misunderstood. Use of proper phraseology is a must. WX was without a doubt a factor; too. Especially when aircraft are deviating way off course.
Original NASA ASRS Text
Title: ZOB ASSOCIATE CTLR DESCRIBED OPERROR AT FL220 RESULTING FROM INCORRECT USE OF STANDARD PHRASEOLOGY.
Narrative: IMPROPER PHRASEOLOGY WAS USED BY THE OTHER CTLR AND WAS MISUNDERSTOOD. USE OF PROPER PHRASEOLOGY IS A MUST. WX WAS WITHOUT A DOUBT A FACTOR; TOO. ESPECIALLY WHEN ACFT ARE DEVIATING WAY OFF COURSE.
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.