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Preplanned coordination for lower altitude is issued to wrong aircraft by ZID controller resulting in an operational error.
| Attributes | |
| ACN | 538693 |
| Time | |
| Date | 200202 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : cmh.airport |
| State Reference | OH |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc tower : dtw.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 7 |
| ASRS Report | 538693 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 4200 vertical : 1800 |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X was level at FL350, on indianapolis arrival. I had crossing traffic at FL310, air carrier Y. I needed to start the arrival down, so I assigned FL330 -- I thought -- but I actually gave him FL230. Prior to this clearance, I went to the low side to request lower on a cvg inbound. He gave me FL220. I assigned it to the air carrier Z going into cvg and then issued the wrong clearance to my air carrier X into indianapolis instead of FL330, I said FL230. Told air carrier X to climb back to FL330.
Original NASA ASRS Text
Title: PREPLANNED COORD FOR LOWER ALT IS ISSUED TO WRONG ACFT BY ZID CTLR RESULTING IN AN OPERROR.
Narrative: ACR X WAS LEVEL AT FL350, ON INDIANAPOLIS ARR. I HAD XING TFC AT FL310, ACR Y. I NEEDED TO START THE ARR DOWN, SO I ASSIGNED FL330 -- I THOUGHT -- BUT I ACTUALLY GAVE HIM FL230. PRIOR TO THIS CLRNC, I WENT TO THE LOW SIDE TO REQUEST LOWER ON A CVG INBOUND. HE GAVE ME FL220. I ASSIGNED IT TO THE ACR Z GOING INTO CVG AND THEN ISSUED THE WRONG CLRNC TO MY ACR X INTO INDIANAPOLIS INSTEAD OF FL330, I SAID FL230. TOLD ACR X TO CLB BACK TO FL330.
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.