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Cga BE40 PIC took evasive action, with ATC altitude change assignment, due to conflicting traffic. Approach controller states that conflict initiated from ARTCC controller, assigning same, conflicting altitude with other traffic. PIC advised difficult situation was presented to him, either turn in thunderstorm activity or allow TCASII the ability to resolve the traffic conflict. This time PIC turned into WX.
| Attributes | |
| ACN | 411018 |
| Time | |
| Date | 199808 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ves airport : day |
| State Reference | OH |
| Altitude | msl bound lower : 11200 msl bound upper : 12500 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid tracon : day |
| Operator | general aviation : corporate |
| Make Model Name | Beechjet 400 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 80 flight time total : 6600 flight time type : 1200 |
| ASRS Report | 411018 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 12000 vertical : 600 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We (aircraft #1) were assigned descent to 11000 ft by ZID. We were handed off to day approach at approximately 12500 ft. Day approach told us at 11200 ft, with no reason or sense of urgency, to climb back to 12000 ft and turn right to 360 degrees. PNF asked if we could have something different and said we'd be unable that heading due to a thunderstorm cell off to our immediate right. I began climb back to 12000 ft. ATC repeated instructions -- no reason or urgency. I complied with turn. ATC then gave us a descent back to 11000 ft. TCASII TA (aircraft #2) was received. ATC then advised us (apologetically) that the center controller made an error and caused the conflict (he admitted that ATC caused the situation). He offered a phone number if wanted an explanation. It is a difficult situation when ATC needs to turn you into a thunderstorm to avoid traffic. The thunderstorm is probably more risky than the conflict especially with TCASII available. Regardless of our turn time, we could not have avoided conflict.
Original NASA ASRS Text
Title: CGA BE40 PIC TOOK EVASIVE ACTION, WITH ATC ALT CHANGE ASSIGNMENT, DUE TO CONFLICTING TFC. APCH CTLR STATES THAT CONFLICT INITIATED FROM ARTCC CTLR, ASSIGNING SAME, CONFLICTING ALT WITH OTHER TFC. PIC ADVISED DIFFICULT SIT WAS PRESENTED TO HIM, EITHER TURN IN TSTM ACTIVITY OR ALLOW TCASII THE ABILITY TO RESOLVE THE TFC CONFLICT. THIS TIME PIC TURNED INTO WX.
Narrative: WE (ACFT #1) WERE ASSIGNED DSCNT TO 11000 FT BY ZID. WE WERE HANDED OFF TO DAY APCH AT APPROX 12500 FT. DAY APCH TOLD US AT 11200 FT, WITH NO REASON OR SENSE OF URGENCY, TO CLB BACK TO 12000 FT AND TURN R TO 360 DEGS. PNF ASKED IF WE COULD HAVE SOMETHING DIFFERENT AND SAID WE'D BE UNABLE THAT HEADING DUE TO A TSTM CELL OFF TO OUR IMMEDIATE R. I BEGAN CLB BACK TO 12000 FT. ATC REPEATED INSTRUCTIONS -- NO REASON OR URGENCY. I COMPLIED WITH TURN. ATC THEN GAVE US A DSCNT BACK TO 11000 FT. TCASII TA (ACFT #2) WAS RECEIVED. ATC THEN ADVISED US (APOLOGETICALLY) THAT THE CTR CTLR MADE AN ERROR AND CAUSED THE CONFLICT (HE ADMITTED THAT ATC CAUSED THE SIT). HE OFFERED A PHONE NUMBER IF WANTED AN EXPLANATION. IT IS A DIFFICULT SIT WHEN ATC NEEDS TO TURN YOU INTO A TSTM TO AVOID TFC. THE TSTM IS PROBABLY MORE RISKY THAN THE CONFLICT ESPECIALLY WITH TCASII AVAILABLE. REGARDLESS OF OUR TURN TIME, WE COULD NOT HAVE AVOIDED CONFLICT.
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.