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ZID controller experienced operational error at FL280 neglecting to increase required separation for flight formation.
| Attributes | |
| ACN | 632463 |
| Time | |
| Date | 200409 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : cvg.vortac |
| State Reference | KY |
| Altitude | msl single value : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc tower : ord.tower |
| Operator | other |
| Make Model Name | Hornet (F-18) |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | general aviation : corporate |
| Make Model Name | HS 125 Series 1-600 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : instructor |
| Qualification | controller : radar pilot : private |
| Experience | controller radar : 15 flight time total : 380 |
| ASRS Report | 632463 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar instruction : trainee |
| Qualification | controller : developmental |
| Experience | controller military : 7.5 controller radar : 0.5 |
| ASRS Report | 632476 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera other controllerb |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 33000 vertical : 200 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Conducting radar training, trainee misjudged vector distance. I instructed trainee to turn aircraft Y 30 degrees left. Separation was achieved. Awareness that 2 F-18's was a formation flight was recognized too late to achieve additional separation required for formation flight. Enhancement to our display could have helped. My trainee displays the type of aircraft in the data block. Simply allowing this display to show number of aircraft when applicable would have avoided this error.
Original NASA ASRS Text
Title: ZID CTLR EXPERIENCED OPERROR AT FL280 NEGLECTING TO INCREASE REQUIRED SEPARATION FOR FLT FORMATION.
Narrative: CONDUCTING RADAR TRAINING, TRAINEE MISJUDGED VECTOR DISTANCE. I INSTRUCTED TRAINEE TO TURN ACFT Y 30 DEGS L. SEPARATION WAS ACHIEVED. AWARENESS THAT 2 F-18'S WAS A FORMATION FLT WAS RECOGNIZED TOO LATE TO ACHIEVE ADDITIONAL SEPARATION REQUIRED FOR FORMATION FLT. ENHANCEMENT TO OUR DISPLAY COULD HAVE HELPED. MY TRAINEE DISPLAYS THE TYPE OF ACFT IN THE DATA BLOCK. SIMPLY ALLOWING THIS DISPLAY TO SHOW NUMBER OF ACFT WHEN APPLICABLE WOULD HAVE AVOIDED THIS ERROR.
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.