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Flight crew of a canadair CL65 climbed in response to a TCASII RA when head-on traffic 2000 ft below began climb to their altitude. ARTCC radar controller subsequently issued a climb to a higher altitude since their assigned altitude was now being used by another aircraft.
| Attributes | |
| ACN | 419965 |
| Time | |
| Date | 199811 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : jst |
| State Reference | PA |
| Altitude | msl bound lower : 27000 msl bound upper : 27000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob tower : ewr |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : zob |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : student pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 3200 flight time type : 350 |
| ASRS Report | 419965 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action other |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Possible cause: ZAU gave us an amended altitude from FL290 to stop at FL270 then handed us over to ZOB. It was not much later that the following occurred: level cruise flight at FL270, oncoming traffic at FL250. Head-on traffic climbed to our altitude, received TA/RA on TCASII with a 3000 ft climb advisory. Came within 1000 ft during situation. Once descended per TA/RA, ZOB told us to climb to FL290. Occurred 300 mi west of johnstown jst direct from djb in air carrier X CL65 aircraft.
Original NASA ASRS Text
Title: FLC OF A CANADAIR CL65 CLBED IN RESPONSE TO A TCASII RA WHEN HEAD-ON TFC 2000 FT BELOW BEGAN CLB TO THEIR ALT. ARTCC RADAR CTLR SUBSEQUENTLY ISSUED A CLB TO A HIGHER ALT SINCE THEIR ASSIGNED ALT WAS NOW BEING USED BY ANOTHER ACFT.
Narrative: POSSIBLE CAUSE: ZAU GAVE US AN AMENDED ALT FROM FL290 TO STOP AT FL270 THEN HANDED US OVER TO ZOB. IT WAS NOT MUCH LATER THAT THE FOLLOWING OCCURRED: LEVEL CRUISE FLT AT FL270, ONCOMING TFC AT FL250. HEAD-ON TFC CLBED TO OUR ALT, RECEIVED TA/RA ON TCASII WITH A 3000 FT CLB ADVISORY. CAME WITHIN 1000 FT DURING SIT. ONCE DSNDED PER TA/RA, ZOB TOLD US TO CLB TO FL290. OCCURRED 300 MI W OF JOHNSTOWN JST DIRECT FROM DJB IN ACR X CL65 ACFT.
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.