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Air carrier at cle advised to expect holding, overflies the holding pattern and conflicts with air carrier in adjacent sector.
| Attributes | |
| ACN | 493788 |
| Time | |
| Date | 200012 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : djb.vortac |
| State Reference | OH |
| Altitude | msl single value : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Route In Use | arrival : holding pattern |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Saab-Scania Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : vacating altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller limited radar : 1 controller time certified in position2 : 6 |
| ASRS Report | 493788 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne critical non adherence : required legal separation non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert other controllera other controllerb other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | horizontal : 23400 vertical : 800 |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was holding at the cle arrival fix wakem. 4 flts were established in the hold and cle called to say I was released from the hold. Air carrier X was the next cle arrival entering the sector and was told to expect holding at wakem. I issued numerous descent clrncs to air carrier X to insure vertical separation from a chq flight at 17000 ft also nebound. Because of these descent clrncs, I was distraction from issuing the holding instructions to air carrier X prior to the fix. Air carrier X overflew wake, at 13000 ft and continued nebound. The sector north of mine was working air carrier Y into dtw and descended the flight to 13000 ft. The conflict alert activated for these flts and I looked to see if lower was available for air carrier X. Due to other aircraft in the holding stack, I was unable to issue further descent, but issued a right turn (as did the other sector). When asked to verify they were entering holding the air carrier X stated they weren't given holding instructions, they were only told to expect holding.
Original NASA ASRS Text
Title: ACR AT CLE ADVISED TO EXPECT HOLDING, OVERFLIES THE HOLDING PATTERN AND CONFLICTS WITH ACR IN ADJACENT SECTOR.
Narrative: I WAS HOLDING AT THE CLE ARR FIX WAKEM. 4 FLTS WERE ESTABLISHED IN THE HOLD AND CLE CALLED TO SAY I WAS RELEASED FROM THE HOLD. ACR X WAS THE NEXT CLE ARR ENTERING THE SECTOR AND WAS TOLD TO EXPECT HOLDING AT WAKEM. I ISSUED NUMEROUS DSCNT CLRNCS TO ACR X TO INSURE VERT SEPARATION FROM A CHQ FLT AT 17000 FT ALSO NEBOUND. BECAUSE OF THESE DSCNT CLRNCS, I WAS DISTR FROM ISSUING THE HOLDING INSTRUCTIONS TO ACR X PRIOR TO THE FIX. ACR X OVERFLEW WAKE, AT 13000 FT AND CONTINUED NEBOUND. THE SECTOR N OF MINE WAS WORKING ACR Y INTO DTW AND DSNDED THE FLT TO 13000 FT. THE CONFLICT ALERT ACTIVATED FOR THESE FLTS AND I LOOKED TO SEE IF LOWER WAS AVAILABLE FOR ACR X. DUE TO OTHER ACFT IN THE HOLDING STACK, I WAS UNABLE TO ISSUE FURTHER DSCNT, BUT ISSUED A R TURN (AS DID THE OTHER SECTOR). WHEN ASKED TO VERIFY THEY WERE ENTERING HOLDING THE ACR X STATED THEY WEREN'T GIVEN HOLDING INSTRUCTIONS, THEY WERE ONLY TOLD TO EXPECT HOLDING.
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.