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ZID controller experienced operational error at 17200 when issuing wrong altitude; FL260 in lieu of 16000; after initial correct blocked clearance.
| Attributes | |
| ACN | 739288 |
| Time | |
| Date | 200705 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : cvg.airport |
| State Reference | OH |
| Altitude | msl single value : 17200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | general aviation : corporate |
| Make Model Name | HS 125 Series |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.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 |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 21 controller time certified in position1 : 10.5 |
| ASRS Report | 739288 |
| 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 : 22200 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft X was initially assigned 16000 ft; but the transmission was blocked. On the second clearance; FL260 was inadvertently issued instead of 16000 ft. Separation was lost with aircraft Y during the climb. At the time aircraft X went through 16000 ft; I was making uret flight plan amendments to another aircraft who was descending into my airspace and diverting due to 'technical difficulties.' after completed this and looking back at my scope; I then noticed aircraft X was climbing through what I thought was his assigned altitude.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT 17200 WHEN ISSUING WRONG ALT; FL260 IN LIEU OF 16000; AFTER INITIAL CORRECT BLOCKED CLRNC.
Narrative: ACFT X WAS INITIALLY ASSIGNED 16000 FT; BUT THE XMISSION WAS BLOCKED. ON THE SECOND CLRNC; FL260 WAS INADVERTENTLY ISSUED INSTEAD OF 16000 FT. SEPARATION WAS LOST WITH ACFT Y DURING THE CLB. AT THE TIME ACFT X WENT THROUGH 16000 FT; I WAS MAKING URET FLT PLAN AMENDMENTS TO ANOTHER ACFT WHO WAS DSNDING INTO MY AIRSPACE AND DIVERTING DUE TO 'TECHNICAL DIFFICULTIES.' AFTER COMPLETED THIS AND LOOKING BACK AT MY SCOPE; I THEN NOTICED ACFT X WAS CLBING THROUGH WHAT I THOUGHT WAS HIS ASSIGNED ALT.
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.