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Controller experienced operational error at FL290 when misjudging spacing between two climbing aircraft in opposite directions.
| Attributes | |
| ACN | 703330 |
| Time | |
| Date | 200607 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : alb.airport |
| State Reference | NY |
| Altitude | msl single value : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zny.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : enroute altitude change |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | pilot : instrument |
| Experience | controller limited radar : 4 controller radar : 11 flight time total : 1000 |
| ASRS Report | 703330 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24000 vertical : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier Y was climbing sbound. I took the handoff on air carrier X 15 NM north of alb VORTAC. The aircraft showed FL270 and climbing to FL300. Air carrier Y was climbing nwbound from center direct syr. The aircraft was climbing to FL290. Air carrier X was only climbing at 500 FPM at best. I did not notice this at first because there was an aircraft of suspect on frequency and I was trying to obtain company information and phone numbers. I asked air carrier X his rate of climb. He replied 500 FPM. I told him to increase to at least 1000 FPM to top the air carrier Y who was also climbing. Air carrier X did not climb fast enough to top the air carrier Y. Separation was lost.
Original NASA ASRS Text
Title: CTLR EXPERIENCED OPERROR AT FL290 WHEN MISJUDGING SPACING BTWN TWO CLBING ACFT IN OPPOSITE DIRECTIONS.
Narrative: ACR Y WAS CLBING SBOUND. I TOOK THE HDOF ON ACR X 15 NM N OF ALB VORTAC. THE ACFT SHOWED FL270 AND CLBING TO FL300. ACR Y WAS CLBING NWBOUND FROM CTR DIRECT SYR. THE ACFT WAS CLBING TO FL290. ACR X WAS ONLY CLBING AT 500 FPM AT BEST. I DID NOT NOTICE THIS AT FIRST BECAUSE THERE WAS AN ACFT OF SUSPECT ON FREQ AND I WAS TRYING TO OBTAIN COMPANY INFO AND PHONE NUMBERS. I ASKED ACR X HIS RATE OF CLB. HE REPLIED 500 FPM. I TOLD HIM TO INCREASE TO AT LEAST 1000 FPM TO TOP THE ACR Y WHO WAS ALSO CLBING. ACR X DID NOT CLB FAST ENOUGH TO TOP THE ACR Y. SEPARATION WAS LOST.
Data retrieved from NASA's ASRS site as of January 2009 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.