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TCASII alerts flight crew of wbound B767ER of descending traffic passing through their altitude just 1 mi to the right, a B757. Lirr had given that aircraft a descent clearance through their altitude. The B767 was on a handoff from lggg, athens control and was on a different frequency from rome control. When on rome control, an apology was received from controller.
| Attributes | |
| ACN | 378502 |
| Time | |
| Date | 199708 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : lirr |
| State Reference | FO |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : lirr |
| Operator | common carrier : air carrier |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute airway : lirr |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 20000 flight time type : 3300 |
| ASRS Report | 378502 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : far non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
The above incident occurred on aug/xa/97 between bambi intersection and pokar intersection on UG8. We were flight wbound between athens and jfk at FL280. We first became aware of the incident from a TA announcing 'monitor vertical speed.' we watched a B757 descend through our altitude on our right. This aircraft was a supplemental carrier, part 121. He had received his descent clearance from rome radar. We did not hear the clearance as we were on a different frequency. When we talked to the controller on 133.25 he realized he had issued the descent clearance in error and apologized.
Original NASA ASRS Text
Title: TCASII ALERTS FLC OF WBOUND B767ER OF DSNDING TFC PASSING THROUGH THEIR ALT JUST 1 MI TO THE R, A B757. LIRR HAD GIVEN THAT ACFT A DSCNT CLRNC THROUGH THEIR ALT. THE B767 WAS ON A HDOF FROM LGGG, ATHENS CTL AND WAS ON A DIFFERENT FREQ FROM ROME CTL. WHEN ON ROME CTL, AN APOLOGY WAS RECEIVED FROM CTLR.
Narrative: THE ABOVE INCIDENT OCCURRED ON AUG/XA/97 BTWN BAMBI INTXN AND POKAR INTXN ON UG8. WE WERE FLT WBOUND BTWN ATHENS AND JFK AT FL280. WE FIRST BECAME AWARE OF THE INCIDENT FROM A TA ANNOUNCING 'MONITOR VERT SPD.' WE WATCHED A B757 DSND THROUGH OUR ALT ON OUR R. THIS ACFT WAS A SUPPLEMENTAL CARRIER, PART 121. HE HAD RECEIVED HIS DSCNT CLRNC FROM ROME RADAR. WE DID NOT HEAR THE CLRNC AS WE WERE ON A DIFFERENT FREQ. WHEN WE TALKED TO THE CTLR ON 133.25 HE REALIZED HE HAD ISSUED THE DSCNT CLRNC IN ERROR AND APOLOGIZED.
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.