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E145 flight crew executes TCASII maneuver as ZOB controller issues traffic alert and turns. Other aircraft complains.
| Attributes | |
| ACN | 514101 |
| Time | |
| Date | 200106 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : djb.vortac |
| State Reference | OH |
| Altitude | msl bound lower : 10000 msl bound upper : 12000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc tower : iad.tower |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude descent : approach |
| Route In Use | arrival star : wakem 2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | general aviation : personal |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : enroute altitude change |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 4700 flight time type : 800 |
| ASRS Report | 514101 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac inflight encounter : weather |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued alert controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 300 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
We were given the crossing restr and wakem intersection 250 KTS and 10000 ft on the wakem 2 arrival into cle on the descent. Passing through 12000 ft for 10000 ft, TA came up on TCASII stating traffic at 2 O'clock 1000 ft below. We, therefore, stopped our descent, and next came the RA climb 7000 FPM. ATC mentioned our traffic right as we started the climb. ATC also pointed out the traffic prior to the TA, but we did not have him in sight since we were IMC. After climbing and clear of conflict, the other aircraft started questioning the ATC controller's ability to separate us. I think in order to prevent this from happening again, maybe the controller could have turned the other aircraft one way or the other. I am not sure whether the other aircraft was just receiving TA's and even if he was on an IFR flight plan. If he was VFR, the aircraft was obviously in IFR conditions and totally not ATC controller's problem.
Original NASA ASRS Text
Title: E145 FLC EXECUTES TCASII MANEUVER AS ZOB CTLR ISSUES TFC ALERT AND TURNS. OTHER ACFT COMPLAINS.
Narrative: WE WERE GIVEN THE XING RESTR AND WAKEM INTXN 250 KTS AND 10000 FT ON THE WAKEM 2 ARR INTO CLE ON THE DSCNT. PASSING THROUGH 12000 FT FOR 10000 FT, TA CAME UP ON TCASII STATING TFC AT 2 O'CLOCK 1000 FT BELOW. WE, THEREFORE, STOPPED OUR DSCNT, AND NEXT CAME THE RA CLB 7000 FPM. ATC MENTIONED OUR TFC RIGHT AS WE STARTED THE CLB. ATC ALSO POINTED OUT THE TFC PRIOR TO THE TA, BUT WE DID NOT HAVE HIM IN SIGHT SINCE WE WERE IMC. AFTER CLBING AND CLR OF CONFLICT, THE OTHER ACFT STARTED QUESTIONING THE ATC CTLR'S ABILITY TO SEPARATE US. I THINK IN ORDER TO PREVENT THIS FROM HAPPENING AGAIN, MAYBE THE CTLR COULD HAVE TURNED THE OTHER ACFT ONE WAY OR THE OTHER. I AM NOT SURE WHETHER THE OTHER ACFT WAS JUST RECEIVING TA'S AND EVEN IF HE WAS ON AN IFR FLT PLAN. IF HE WAS VFR, THE ACFT WAS OBVIOUSLY IN IFR CONDITIONS AND TOTALLY NOT ATC CTLR'S PROB.
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.