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Phl approach controller working en route traffic lost separation when it conflicted with a dash-8 climbing off ttn airport.
| Attributes | |
| ACN | 546832 |
| Time | |
| Date | 200205 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : rbv.vortac |
| State Reference | NJ |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Saab-Scania Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 10 controller time certified in position2 : 2 |
| ASRS Report | 546832 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : radar/arts other controllera other controllerb other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 12000 |
| Supplementary | |
| Problem Areas | ATC Human Performance Navigational Facility Flight Crew Human Performance Airspace Structure |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Unable to expect automated handoff. As a result receiving facility unable to discern aircraft in its airspace, resulting in loss of separation. Callback conversation with reporter revealed the following information: reporter said a problem exists at phl approach that does not allow the automatic handoff feature work with traffic off ttn. He said when the aircraft departs, the automatic handoff must be suppressed and then a manual handoff step is started. He said this somewhat lengthy process was a distraction that contributed to the loss of separation between the overflt and the dash-8 commuter off ttn. The reporter thinks the real problem with the automatic handoff not working is distance from the phl radar site to the mcguire radar site and the altitude of the aircraft just off ttn.
Original NASA ASRS Text
Title: PHL APCH CTLR WORKING ENRTE TFC LOST SEPARATION WHEN IT CONFLICTED WITH A DASH-8 CLBING OFF TTN ARPT.
Narrative: UNABLE TO EXPECT AUTOMATED HDOF. AS A RESULT RECEIVING FACILITY UNABLE TO DISCERN ACFT IN ITS AIRSPACE, RESULTING IN LOSS OF SEPARATION. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR SAID A PROB EXISTS AT PHL APCH THAT DOES NOT ALLOW THE AUTO HDOF FEATURE WORK WITH TFC OFF TTN. HE SAID WHEN THE ACFT DEPARTS, THE AUTO HDOF MUST BE SUPPRESSED AND THEN A MANUAL HDOF STEP IS STARTED. HE SAID THIS SOMEWHAT LENGTHY PROCESS WAS A DISTR THAT CONTRIBUTED TO THE LOSS OF SEPARATION BTWN THE OVERFLT AND THE DASH-8 COMMUTER OFF TTN. THE RPTR THINKS THE REAL PROB WITH THE AUTO HDOF NOT WORKING IS DISTANCE FROM THE PHL RADAR SITE TO THE MCGUIRE RADAR SITE AND THE ALT OF THE ACFT JUST OFF TTN.
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.