 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
CL65 flight crew makes aggressive turn when complying with ZID instructions due to same altitude traffic.
| Attributes | |
| ACN | 547006 |
| Time | |
| Date | 200205 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mie.vor |
| State Reference | IN |
| Altitude | msl bound lower : 27000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 17000 flight time type : 3000 |
| ASRS Report | 547006 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance controller : separated traffic flight crew : overrode automation flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 12000 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Over mie VOR at FL270, ZAU requested us to climb to FL280. While complying with climb clearance, crew observed traffic on TCASII within 2-3 mi of them, within 200-300 ft and converging vertically and horizontally. Crew was receiving yellow traffic alert as ATC gave us an immediate turn from 180 degrees to 90 degrees. Crew heard ATC questioning other aircraft and ATC realized a conflict was occurring. We disconnected autoplt and did an immediate steep turn to 090 degrees to avoid traffic. ATC seemed confused as to what our altitude was and the other aircraft's altitude. Upon confirmation of our altitude of FL280 and traffic clearance, we were cleared back on course. Appeared ATC and aircraft involved were unclr as to everyone's position and altitude for a very short time.
Original NASA ASRS Text
Title: CL65 FLC MAKES AGGRESSIVE TURN WHEN COMPLYING WITH ZID INSTRUCTIONS DUE TO SAME ALT TFC.
Narrative: OVER MIE VOR AT FL270, ZAU REQUESTED US TO CLB TO FL280. WHILE COMPLYING WITH CLB CLRNC, CREW OBSERVED TFC ON TCASII WITHIN 2-3 MI OF THEM, WITHIN 200-300 FT AND CONVERGING VERTLY AND HORIZLY. CREW WAS RECEIVING YELLOW TFC ALERT AS ATC GAVE US AN IMMEDIATE TURN FROM 180 DEGS TO 90 DEGS. CREW HEARD ATC QUESTIONING OTHER ACFT AND ATC REALIZED A CONFLICT WAS OCCURRING. WE DISCONNECTED AUTOPLT AND DID AN IMMEDIATE STEEP TURN TO 090 DEGS TO AVOID TFC. ATC SEEMED CONFUSED AS TO WHAT OUR ALT WAS AND THE OTHER ACFT'S ALT. UPON CONFIRMATION OF OUR ALT OF FL280 AND TFC CLRNC, WE WERE CLRED BACK ON COURSE. APPEARED ATC AND ACFT INVOLVED WERE UNCLR AS TO EVERYONE'S POS AND ALT FOR A VERY SHORT TIME.
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.