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ZID controller experienced operational error at FL330 when failing to hear reported altitude that was the same as conflicting traffic; corrective too late.
| Attributes | |
| ACN | 729384 |
| Time | |
| Date | 200702 |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : rod.vortac |
| State Reference | OH |
| Altitude | msl single value : 33000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 700 ER&LR |
| 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 : 1 controller supervisory : 13 |
| ASRS Report | 729384 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : supervisor |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 21 flight time total : 300 |
| ASRS Report | 729094 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert aircraft equipment : tcas other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12000 vertical : 700 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft (DC93/west) called on climbing to FL340. This was not heard; thought aircraft was climbing to FL330. Pilot stated he was receiving an RA with CRJ7/Q at FL340. They were told to descend immediately to FL330.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT FL330 WHEN FAILING TO HEAR REPORTED ALT THAT WAS THE SAME AS CONFLICTING TFC; CORRECTIVE TOO LATE.
Narrative: ACFT (DC93/W) CALLED ON CLBING TO FL340. THIS WAS NOT HEARD; THOUGHT ACFT WAS CLBING TO FL330. PLT STATED HE WAS RECEIVING AN RA WITH CRJ7/Q AT FL340. THEY WERE TOLD TO DSND IMMEDIATELY TO FL330.
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.