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ZHU controller expressed operational error at 3000 ft when developmental controller issued conflicting approach clearance before instructor could intercede.
| Attributes | |
| ACN | 720752 |
| Time | |
| Date | 200612 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zhu.artcc airport : rwf.airport |
| State Reference | TX |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | general aviation : personal |
| Make Model Name | Cessna 210 Centurion / Turbo Centurion 210C 210D |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhu.artcc |
| Operator | general aviation : personal |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing : missed approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller limited radar : 3 controller radar : 12.6 |
| ASRS Report | 720752 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| 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 : 28800 vertical : 800 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft Y doing practice approach into rwv was cleared for approach and frequency change was approved. While waiting for the missed approach call; aircraft X was descended to 3000 ft and told to report rwv in sight. The missed approach call came and aircraft Y was asked to identify. At about the same time; aircraft X reported the field (rwv) in sight. The trainee started to clear aircraft X for a visual approach. I tried to cancel aircraft X approach clearance (it was approximately 8 seconds after the clearance was given). But the pilot of aircraft X said he was at 2500 ft. Aircraft X was cleared to climb back to 3000 ft. But the odp was already alerted.
Original NASA ASRS Text
Title: ZHU CTLR EXPRESSED OPERROR AT 3000 FT WHEN DEVELOPMENTAL CTLR ISSUED CONFLICTING APCH CLRNC BEFORE INSTRUCTOR COULD INTERCEDE.
Narrative: ACFT Y DOING PRACTICE APCH INTO RWV WAS CLRED FOR APCH AND FREQ CHANGE WAS APPROVED. WHILE WAITING FOR THE MISSED APCH CALL; ACFT X WAS DSNDED TO 3000 FT AND TOLD TO RPT RWV IN SIGHT. THE MISSED APCH CALL CAME AND ACFT Y WAS ASKED TO IDENT. AT ABOUT THE SAME TIME; ACFT X RPTED THE FIELD (RWV) IN SIGHT. THE TRAINEE STARTED TO CLR ACFT X FOR A VISUAL APCH. I TRIED TO CANCEL ACFT X APCH CLRNC (IT WAS APPROX 8 SECONDS AFTER THE CLRNC WAS GIVEN). BUT THE PLT OF ACFT X SAID HE WAS AT 2500 FT. ACFT X WAS CLRED TO CLB BACK TO 3000 FT. BUT THE ODP WAS ALREADY ALERTED.
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.