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Less than standard separation between 3 air carrier aircraft in trail on final approach. Operational error.
| Attributes | |
| ACN | 80898 |
| Time | |
| Date | 198801 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ewr |
| State Reference | NJ |
| Altitude | msl bound lower : 600 msl bound upper : 1200 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90 tower : ewr artcc : zoa |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach landing other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | descent : approach landing : go around landing : missed approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| ASRS Report | 80898 |
| Person 2 | |
| Function | controller : approach |
| Qualification | controller : radar |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure Operational Error |
Narrative:
Aircraft was transferred to local control at ewr tower with less than standard sep. I took action to ensure sep of aircraft and transferred them back to ny TRACON. Callback conversation with reporter revealed the following: reporter says that all 3 aircraft were air carrier. When they came on his tower frequency medium large transport X was permitted to land. Medium large transport Y was about 1 mi behind X and 300' higher. Air carrier Y was given climbing right turn to a heading and change back to N90 controller. This aircraft was late in coming to tower frequency. The third air carrier was large transport and it was about 1 mi behind air carrier Y and approximately 300' higher. This air carrier Z was given climbing left turn for sep and change back to N90. WX at time was ceiling 400 and visibility 1 mi. N90 bought 2 operation errors.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION BETWEEN 3 ACR ACFT IN TRAIL ON FINAL APCH. OPERATIONAL ERROR.
Narrative: ACFT WAS TRANSFERRED TO LCL CTL AT EWR TWR WITH LESS THAN STANDARD SEP. I TOOK ACTION TO ENSURE SEP OF ACFT AND TRANSFERRED THEM BACK TO NY TRACON. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: REPORTER SAYS THAT ALL 3 ACFT WERE ACR. WHEN THEY CAME ON HIS TWR FREQ MLG X WAS PERMITTED TO LAND. MLG Y WAS ABOUT 1 MI BEHIND X AND 300' HIGHER. ACR Y WAS GIVEN CLBING RIGHT TURN TO A HDG AND CHANGE BACK TO N90 CTLR. THIS ACFT WAS LATE IN COMING TO TWR FREQ. THE THIRD ACR WAS LGT AND IT WAS ABOUT 1 MI BEHIND ACR Y AND APPROX 300' HIGHER. THIS ACR Z WAS GIVEN CLBING LEFT TURN FOR SEP AND CHANGE BACK TO N90. WX AT TIME WAS CEILING 400 AND VIS 1 MI. N90 BOUGHT 2 OP ERRORS.
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.