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Potential conflict between opposite direction same altitude traffic. Altitude deviation altitude excursion. Heading track deviation.
| Attributes | |
| ACN | 202717 |
| Time | |
| Date | 199202 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ood airport : phl |
| State Reference | NJ |
| Altitude | msl bound lower : 2700 msl bound upper : 3100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 8500 flight time type : 2000 |
| ASRS Report | 202717 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 5000 flight time type : 2200 |
| ASRS Report | 202719 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : required legal separation other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 4500 vertical : 400 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
ATC assigned heading 075 degrees at 3100 ft. TCASII issued TA, traffic 12 O'clock, opposite direction, same altitude. At 3.5 mi visually acquired traffic. As we immediately began a left descending turn, TCASII issued an RA to descend. We notified phl approach of our deviation and when clear of conflict returned to our assigned altitude of 3100 ft on a newly assigned heading of 360 degrees. Notes. ATC never notified us of potential conflict. Incident took place inside TCA. Conflicting traffic had to have operational mode C transponder. Remarks: TCASII worked perfectly and saved the day!
Original NASA ASRS Text
Title: POTENTIAL CONFLICT BTWN OPPOSITE DIRECTION SAME ALT TFC. ALTDEV ALT EXCURSION. HDG TRACK DEV.
Narrative: ATC ASSIGNED HDG 075 DEGS AT 3100 FT. TCASII ISSUED TA, TFC 12 O'CLOCK, OPPOSITE DIRECTION, SAME ALT. AT 3.5 MI VISUALLY ACQUIRED TFC. AS WE IMMEDIATELY BEGAN A L DSNDING TURN, TCASII ISSUED AN RA TO DSND. WE NOTIFIED PHL APCH OF OUR DEV AND WHEN CLR OF CONFLICT RETURNED TO OUR ASSIGNED ALT OF 3100 FT ON A NEWLY ASSIGNED HDG OF 360 DEGS. NOTES. ATC NEVER NOTIFIED US OF POTENTIAL CONFLICT. INCIDENT TOOK PLACE INSIDE TCA. CONFLICTING TFC HAD TO HAVE OPERATIONAL MODE C TRANSPONDER. REMARKS: TCASII WORKED PERFECTLY AND SAVED THE DAY!
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.