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Cpr jet climb to occupied altitude had less than standard separation from air carrier dash 8. System error.
| Attributes | |
| ACN | 269781 |
| Time | |
| Date | 199404 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : mmj |
| State Reference | PA |
| Altitude | msl bound lower : 17000 msl bound upper : 17000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct enroute airway : zob |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 8 |
| ASRS Report | 269781 |
| Person 2 | |
| Affiliation | Other |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 19200 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I was working 2 sectors combined at 1 position working 2 frequencys. Several aircraft were checking on at same time or 2 aircraft would answer for each other. This was distracting. I issued aircraft a aircraft B's altitude. Callback conversation with reporter revealed the following information: reporter stated aircraft a was cpr jet and aircraft B was air carrier dash 8. Both aircraft were climbing with dash 8 ahead and above. When the dash 8 leveled at 17000 ft the reporter meant to issue 16000 ft to the cpr jet but stated he was looking at the data tag for the dash 8 and issued 17000 ft. Separation loss 3.2 mi same altitude. Conflict alert had activated.
Original NASA ASRS Text
Title: CPR JET CLB TO OCCUPIED ALT HAD LTSS FROM ACR DASH 8. SYS ERROR.
Narrative: I WAS WORKING 2 SECTORS COMBINED AT 1 POS WORKING 2 FREQS. SEVERAL ACFT WERE CHKING ON AT SAME TIME OR 2 ACFT WOULD ANSWER FOR EACH OTHER. THIS WAS DISTRACTING. I ISSUED ACFT A ACFT B'S ALT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED ACFT A WAS CPR JET AND ACFT B WAS ACR DASH 8. BOTH ACFT WERE CLBING WITH DASH 8 AHEAD AND ABOVE. WHEN THE DASH 8 LEVELED AT 17000 FT THE RPTR MEANT TO ISSUE 16000 FT TO THE CPR JET BUT STATED HE WAS LOOKING AT THE DATA TAG FOR THE DASH 8 AND ISSUED 17000 FT. SEPARATION LOSS 3.2 MI SAME ALT. CONFLICT ALERT HAD ACTIVATED.
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.