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ZJX controller issues expedite climb clearance to cargo L1011, but still loses separation with level, en route B733.
| Attributes | |
| ACN | 504905 |
| Time | |
| Date | 200103 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : crg.vortac |
| State Reference | FL |
| Altitude | msl bound lower : 30300 msl bound upper : 31000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Thunderstorm Turbulence Rain |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011 Tri-Star All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zjx.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : combined radar controller : handoff position |
| Qualification | controller : radar |
| Experience | controller radar : 15 controller time certified in position1 : 15 |
| ASRS Report | 504905 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert atc equipment other atc equipment : radar aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 6000 vertical : 600 |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
Approximately 3 mins into my shift, working R49 combined with R50, R65, R66, handling approximately 25 tracks, complaints of chop/turbulence at many altitudes, and an aircraft lost looking for the correct frequency. I observed a conflict between air carrier X climbing through FL310 to FL330 and air carrier Y level at FL310. I cleared air carrier Y to expedite a descent to FL280. The pilot acknowledged the clearance, but evidently never descended. Then I turned air carrier Y to the right. Air carrier X then advised of a TCASII resolution and began a descent back down through FL310 to FL303 (approximately). I turned air carrier X to the right.
Original NASA ASRS Text
Title: ZJX CTLR ISSUES EXPEDITE CLB CLRNC TO CARGO L1011, BUT STILL LOSES SEPARATION WITH LEVEL, ENRTE B733.
Narrative: APPROX 3 MINS INTO MY SHIFT, WORKING R49 COMBINED WITH R50, R65, R66, HANDLING APPROX 25 TRACKS, COMPLAINTS OF CHOP/TURB AT MANY ALTS, AND AN ACFT LOST LOOKING FOR THE CORRECT FREQ. I OBSERVED A CONFLICT BTWN ACR X CLBING THROUGH FL310 TO FL330 AND ACR Y LEVEL AT FL310. I CLRED ACR Y TO EXPEDITE A DSCNT TO FL280. THE PLT ACKNOWLEDGED THE CLRNC, BUT EVIDENTLY NEVER DSNDED. THEN I TURNED ACR Y TO THE R. ACR X THEN ADVISED OF A TCASII RESOLUTION AND BEGAN A DSCNT BACK DOWN THROUGH FL310 TO FL303 (APPROX). I TURNED ACR X TO THE R.
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.