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Air carrier cargo aircraft on radar scope but not in radio contact is involved in loss of separation with another cargo air carrier in descent.
| Attributes | |
| ACN | 335336 |
| Time | |
| Date | 199605 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 22000 msl bound upper : 22000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid |
| Operator | common carrier : air carrier |
| Make Model Name | DC-8 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| ASRS Report | 335336 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller non radar : 9 controller radar : 7 |
| ASRS Report | 335106 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 24600 vertical : 300 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft #1 descending to FL220 called on frequency, simultaneous to aircraft #2 being displayed only (no verbal coordination) on my scope. I expedited aircraft #1 to vacate FL230 within 1 min. Aircraft #1 complied, the aircraft #2 continued to descend thus losing separation with aircraft #1. Charged me with operational error although per 7110.65 verbal coordination was never done! If verbal coordination would have been established by transferring controller, then aircraft would have been referenced each other and control actions to separate them! Supplemental information from acn 335106: I was working air carrier Y and put a (point out) on another sector, got busy and did not verbally call on point out. Controller in another sector saw aircraft on his scope and still ran another aircraft closer than the minimum separation needed.
Original NASA ASRS Text
Title: ACR CARGO ACFT ON RADAR SCOPE BUT NOT IN RADIO CONTACT IS INVOLVED IN LOSS OF SEPARATION WITH ANOTHER CARGO ACR IN DSCNT.
Narrative: ACFT #1 DSNDING TO FL220 CALLED ON FREQ, SIMULTANEOUS TO ACFT #2 BEING DISPLAYED ONLY (NO VERBAL COORD) ON MY SCOPE. I EXPEDITED ACFT #1 TO VACATE FL230 WITHIN 1 MIN. ACFT #1 COMPLIED, THE ACFT #2 CONTINUED TO DSND THUS LOSING SEPARATION WITH ACFT #1. CHARGED ME WITH OPERROR ALTHOUGH PER 7110.65 VERBAL COORD WAS NEVER DONE! IF VERBAL COORD WOULD HAVE BEEN ESTABLISHED BY TRANSFERRING CTLR, THEN ACFT WOULD HAVE BEEN REFED EACH OTHER AND CTL ACTIONS TO SEPARATE THEM! SUPPLEMENTAL INFO FROM ACN 335106: I WAS WORKING ACR Y AND PUT A (POINT OUT) ON ANOTHER SECTOR, GOT BUSY AND DID NOT VERBALLY CALL ON POINT OUT. CTLR IN ANOTHER SECTOR SAW ACFT ON HIS SCOPE AND STILL RAN ANOTHER ACFT CLOSER THAN THE MINIMUM SEPARATION NEEDED.
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.