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Less than standard separation between southeastbound bmb at FL230 and northeast-bound medium large transport climbing through that altitude.
| Attributes | |
| ACN | 85825 |
| Time | |
| Date | 198804 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : cty |
| State Reference | FL |
| Altitude | msl bound lower : 22400 msl bound upper : 23000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 2 controller radar : 4 |
| ASRS Report | 85825 |
| Person 2 | |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : military |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance none taken : insufficient time other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 3600 vertical : 600 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Bmb X sebnd and medium large transport big nebnd. Medium large transport big missed his clearance because I called him medium large transport bid. Callback conversation with reporter revealed the following: the bmb was sebnd, level at fl 230. The medium large transport was nebnd, climbing to an altitude above the bmb. Considerably before the conflict occurred, the controller (reporter) saw the impending problem and gave a level off command to the climbing medium large transport. Unfortunately, he used the wrong number in his call to the medium large transport. They ignored the command and continued the climb. By the time the controller discovered his error, it was too late to stop the medium large transport's climb. The facility investigation found this to be a moderate operational error. Types of aircraft and additional experience data were determined.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION BETWEEN SOUTHEASTBOUND BMB AT FL230 AND NORTHEAST-BOUND MLG CLIMBING THROUGH THAT ALT.
Narrative: BMB X SEBND AND MLG BIG NEBND. MLG BIG MISSED HIS CLRNC BECAUSE I CALLED HIM MLG BID. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: THE BMB WAS SEBND, LEVEL AT FL 230. THE MLG WAS NEBND, CLBING TO AN ALT ABOVE THE BMB. CONSIDERABLY BEFORE THE CONFLICT OCCURRED, THE CTLR (RPTR) SAW THE IMPENDING PROB AND GAVE A LEVEL OFF COMMAND TO THE CLBING MLG. UNFORTUNATELY, HE USED THE WRONG NUMBER IN HIS CALL TO THE MLG. THEY IGNORED THE COMMAND AND CONTINUED THE CLB. BY THE TIME THE CTLR DISCOVERED HIS ERROR, IT WAS TOO LATE TO STOP THE MLG'S CLB. THE FAC INVESTIGATION FOUND THIS TO BE A MODERATE OPERATIONAL ERROR. TYPES OF ACFT AND ADDITIONAL EXPERIENCE DATA WERE DETERMINED.
Data retrieved from NASA's ASRS site as of August 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.