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Flight crew of a cessna citation V, C560, was given an abrupt stop in their en route climb by ATC. Then subsequently, given a descent and turns to avoid further conflict with aircraft which was level at an altitude in which they had been cleared to climb through.
| Attributes | |
| ACN | 378912 |
| Time | |
| Date | 199709 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : top |
| State Reference | KS |
| Altitude | msl bound lower : 29000 msl bound upper : 30500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zkc tower : mem |
| Operator | common carrier : air carrier |
| Make Model Name | Citation V |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other cruise other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 65 flight time total : 16300 flight time type : 7500 |
| ASRS Report | 378912 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
En route climb to our assigned altitude of FL330. Just before passing FL305, we got an urgent request from ATC to descend immediately to FL290 and turn right to 090 degrees (about a 45 degree turn). Initiated rapid descent and turn toward assigned heading. Passing FL295, controller requested a further turn to 120 degrees. Upon reaching FL290, we were cleared back on course. When my copilot asked what this was all about, we got a mumbled response from ATC about traffic at FL310 deviating for WX. Shortly thereafter, we were switched to another frequency. We never got a visual contact of the traffic at FL310. Flight conditions were thin cirrus with some restr to visibility. There was an area of scattered thunderstorms well south of us, but none to the north of our route where I assumed the conflicting traffic was.
Original NASA ASRS Text
Title: FLC OF A CESSNA CITATION V, C560, WAS GIVEN AN ABRUPT STOP IN THEIR ENRTE CLB BY ATC. THEN SUBSEQUENTLY, GIVEN A DSCNT AND TURNS TO AVOID FURTHER CONFLICT WITH ACFT WHICH WAS LEVEL AT AN ALT IN WHICH THEY HAD BEEN CLRED TO CLB THROUGH.
Narrative: ENRTE CLB TO OUR ASSIGNED ALT OF FL330. JUST BEFORE PASSING FL305, WE GOT AN URGENT REQUEST FROM ATC TO DSND IMMEDIATELY TO FL290 AND TURN R TO 090 DEGS (ABOUT A 45 DEG TURN). INITIATED RAPID DSCNT AND TURN TOWARD ASSIGNED HDG. PASSING FL295, CTLR REQUESTED A FURTHER TURN TO 120 DEGS. UPON REACHING FL290, WE WERE CLRED BACK ON COURSE. WHEN MY COPLT ASKED WHAT THIS WAS ALL ABOUT, WE GOT A MUMBLED RESPONSE FROM ATC ABOUT TFC AT FL310 DEVIATING FOR WX. SHORTLY THEREAFTER, WE WERE SWITCHED TO ANOTHER FREQ. WE NEVER GOT A VISUAL CONTACT OF THE TFC AT FL310. FLT CONDITIONS WERE THIN CIRRUS WITH SOME RESTR TO VISIBILITY. THERE WAS AN AREA OF SCATTERED TSTMS WELL S OF US, BUT NONE TO THE N OF OUR RTE WHERE I ASSUMED THE CONFLICTING TFC WAS.
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.