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B752 received TCASII RA while descending to 10000 ft IFR flight plan into phl in VMC. Conflicting aircraft was VFR at 10500.
| Attributes | |
| ACN | 580244 |
| Time | |
| Date | 200304 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : dqo.vortac |
| State Reference | DE |
| Altitude | msl bound lower : 9400 msl bound upper : 10500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc tracon : phl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : holding descent : approach descent : intermediate altitude |
| Route In Use | arrival star : dupont |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc tracon : phl.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 180 flight time total : 13204 flight time type : 2000 |
| ASRS Report | 580244 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Human Performance |
| Primary Problem | Airspace Structure |
Narrative:
Descending into phl on dupont arrival, approaching intersection T (dqo 195 degree radial/14 DME). ZDC cleared us to slow to 250 KTS and descend from 11000-10000 ft and to contact philadelphia approach. Approach called out traffic at 10500 as we descended through that altitude. We got a TA, followed rapidly by a RA, commanding an immediate descent. We descended to 9400 ft following the RA, and a 30 degree left turn given by approach. We notified approach of the deviation due to the RA. Approach said the traffic appeared to be at 10300 ft. Traffic never appeared to be closer than 2 mi.
Original NASA ASRS Text
Title: B752 RECEIVED TCASII RA WHILE DSNDING TO 10000 FT IFR FLT PLAN INTO PHL IN VMC. CONFLICTING ACFT WAS VFR AT 10500.
Narrative: DSNDING INTO PHL ON DUPONT ARR, APCHING INTXN T (DQO 195 DEG RADIAL/14 DME). ZDC CLRED US TO SLOW TO 250 KTS AND DSND FROM 11000-10000 FT AND TO CONTACT PHILADELPHIA APCH. APCH CALLED OUT TFC AT 10500 AS WE DSNDED THROUGH THAT ALT. WE GOT A TA, FOLLOWED RAPIDLY BY A RA, COMMANDING AN IMMEDIATE DSCNT. WE DSNDED TO 9400 FT FOLLOWING THE RA, AND A 30 DEG L TURN GIVEN BY APCH. WE NOTIFIED APCH OF THE DEV DUE TO THE RA. APCH SAID THE TFC APPEARED TO BE AT 10300 FT. TFC NEVER APPEARED TO BE CLOSER THAN 2 MI.
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.