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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier X uncoordinated climb to occupied altitude had less than standard separation from air carrier Y. System error.
| Attributes | |
| ACN | 211442 |
| Time | |
| Date | 199206 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ewc |
| State Reference | PA |
| Altitude | msl bound lower : 35000 msl bound upper : 35000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 211442 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure |
| Independent Detector | other other : unspecified atc |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 11400 vertical : 1500 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I worked bkl sector light/moderate traffic/complexity (just finished a rush). Sbound air carrier X en route yyz-mia over ewc, climbing. I climbed air carrier X to FL310 as temporary altitude, flashed the aircraft to my south high sector fkl looking for higher. I climbed X to FL330 (I thought I saw fkl put in as T altitude.) fkl pointed X out to 67 (verbally told this by fkl-D). I saw 68 had the handoff. I started switching X to 68 frequency saw FL350 in data block as a temporary altitude, I thought I erroneously stopped X at FL330 so I told X to climb to FL350, then changed his frequency to 68 (agc) sector X, then I am told had air carrier Y at FL350 wbound. I thought 59 wanted X to climb to FL350 and is why I climbed him. I also thought sector 59 was the person who put FL350 in as a temporary altitude.
Original NASA ASRS Text
Title: ACR X UNCOORDINATED CLB TO OCCUPIED ALT HAD LTSS FROM ACR Y. SYS ERROR.
Narrative: I WORKED BKL SECTOR LIGHT/MODERATE TFC/COMPLEXITY (JUST FINISHED A RUSH). SBOUND ACR X ENRTE YYZ-MIA OVER EWC, CLBING. I CLBED ACR X TO FL310 AS TEMPORARY ALT, FLASHED THE ACFT TO MY S HIGH SECTOR FKL LOOKING FOR HIGHER. I CLBED X TO FL330 (I THOUGHT I SAW FKL PUT IN AS T ALT.) FKL POINTED X OUT TO 67 (VERBALLY TOLD THIS BY FKL-D). I SAW 68 HAD THE HDOF. I STARTED SWITCHING X TO 68 FREQ SAW FL350 IN DATA BLOCK AS A TEMPORARY ALT, I THOUGHT I ERRONEOUSLY STOPPED X AT FL330 SO I TOLD X TO CLB TO FL350, THEN CHANGED HIS FREQ TO 68 (AGC) SECTOR X, THEN I AM TOLD HAD ACR Y AT FL350 WBOUND. I THOUGHT 59 WANTED X TO CLB TO FL350 AND IS WHY I CLBED HIM. I ALSO THOUGHT SECTOR 59 WAS THE PERSON WHO PUT FL350 IN AS A TEMPORARY ALT.
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.