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Less than standard separation when air carrier-widebody transport did not climb as fast as anticipated by controller. Conflict with overflt mdt at 17000'.
| Attributes | |
| ACN | 89546 |
| Time | |
| Date | 198806 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : eno airport : phl |
| State Reference | DE |
| Altitude | msl bound lower : 17000 msl bound upper : 17600 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Navigation In Use | Other Other |
| 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 : 2 |
| ASRS Report | 89546 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance none taken : insufficient time other |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 600 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Widebody transport X was a phl departure climbing southbound, issued clearance to 17000'. Mdt Y a turboprop eastbound over ewo at 17000'. I expected widebody transport X to be out in front of the turboprop and also planned to have widebody transport X well above mdt Y. The sector became inundated with traffic and I was extremely busy affecting coordination. When I got back to the situation, it was necessary for me to expedite widebody transport X's climb and descend and turn mdt Y.
Original NASA ASRS Text
Title: LESS THAN STANDARD SEPARATION WHEN ACR-WDB DID NOT CLIMB AS FAST AS ANTICIPATED BY CTLR. CONFLICT WITH OVERFLT MDT AT 17000'.
Narrative: WDB X WAS A PHL DEP CLBING SBND, ISSUED CLRNC TO 17000'. MDT Y A TURBOPROP EBND OVER EWO AT 17000'. I EXPECTED WDB X TO BE OUT IN FRONT OF THE TURBOPROP AND ALSO PLANNED TO HAVE WDB X WELL ABOVE MDT Y. THE SECTOR BECAME INUNDATED WITH TFC AND I WAS EXTREMELY BUSY AFFECTING COORD. WHEN I GOT BACK TO THE SITUATION, IT WAS NECESSARY FOR ME TO EXPEDITE WDB X'S CLB AND DSND AND TURN MDT Y.
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.