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ZOB controller experienced operational error when coordination failed with another sector regarding an intermediate altitude stop clearance.
| Attributes | |
| ACN | 623858 |
| Time | |
| Date | 200407 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : mfd.vortac |
| State Reference | OH |
| Altitude | msl single value : 23500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 8 controller time certified in position1 : 8 |
| ASRS Report | 623858 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 22 flight time total : 1900 |
| ASRS Report | 623857 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera other controllerb |
| Resolutory Action | controller : issued alert flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 25800 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft #1 had checked on frequency and due to complexity he was answered. Coordination was then issued to a sector to stop aircraft #1 at lower altitude. They acknowledged and thought I was talking about a separate aircraft. They did not follow up and I thought aircraft was stopped at lower altitude. Supplemental information from acn 623857: we thought aircraft Y was stopped at FL220 but he was actually climbing to FL240.
Original NASA ASRS Text
Title: ZOB CTLR EXPERIENCED OPERROR WHEN COORD FAILED WITH ANOTHER SECTOR REGARDING AN INTERMEDIATE ALT STOP CLRNC.
Narrative: ACFT #1 HAD CHKED ON FREQ AND DUE TO COMPLEXITY HE WAS ANSWERED. COORD WAS THEN ISSUED TO A SECTOR TO STOP ACFT #1 AT LOWER ALT. THEY ACKNOWLEDGED AND THOUGHT I WAS TALKING ABOUT A SEPARATE ACFT. THEY DID NOT FOLLOW UP AND I THOUGHT ACFT WAS STOPPED AT LOWER ALT. SUPPLEMENTAL INFO FROM ACN 623857: WE THOUGHT ACFT Y WAS STOPPED AT FL220 BUT HE WAS ACTUALLY CLBING TO FL240.
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.