 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
While descending into phl, an airliner crew encountered TCASII TA and RA and took evasive action.
| Attributes | |
| ACN | 404812 |
| Time | |
| Date | 199806 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : phl |
| State Reference | PA |
| Altitude | msl bound lower : 4300 msl bound upper : 4300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Skylane 182/RG Turbo Skylane/RG |
| Operating Under FAR Part | Part 91 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 15000 flight time type : 10000 |
| ASRS Report | 404812 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 210 flight time total : 8900 |
| ASRS Report | 405095 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : far non adherence : required legal separation |
| Independent Detector | atc equipment other atc equipment : unspecified aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance none taken : unable other |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 200 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Descending to 4000 ft, on heading 270 degrees assigned by ATC in IMC conditions. Turned to 180 degrees as assigned by ATC, altitude approximately 4400 ft. As we rolled out on 180 degrees, a TCASII TA was received followed almost immediately by an RA to climb. At this same time, ATC asked us what our altitude was and to 'level off.' when the TCASII RA was received, I immediately started to climb. The TCASII was set on 5 NM and showed traffic merged with our aircraft and -01. I climbed up to 4500 ft and leveled off after receiving a clear of conflict. ATC told us he had not been aware of this traffic. ATC later told us the traffic had been a C182 being worked by another controller.
Original NASA ASRS Text
Title: WHILE DSNDING INTO PHL, AN AIRLINER CREW ENCOUNTERED TCASII TA AND RA AND TOOK EVASIVE ACTION.
Narrative: DSNDING TO 4000 FT, ON HDG 270 DEGS ASSIGNED BY ATC IN IMC CONDITIONS. TURNED TO 180 DEGS AS ASSIGNED BY ATC, ALT APPROX 4400 FT. AS WE ROLLED OUT ON 180 DEGS, A TCASII TA WAS RECEIVED FOLLOWED ALMOST IMMEDIATELY BY AN RA TO CLB. AT THIS SAME TIME, ATC ASKED US WHAT OUR ALT WAS AND TO 'LEVEL OFF.' WHEN THE TCASII RA WAS RECEIVED, I IMMEDIATELY STARTED TO CLB. THE TCASII WAS SET ON 5 NM AND SHOWED TFC MERGED WITH OUR ACFT AND -01. I CLBED UP TO 4500 FT AND LEVELED OFF AFTER RECEIVING A CLR OF CONFLICT. ATC TOLD US HE HAD NOT BEEN AWARE OF THIS TFC. ATC LATER TOLD US THE TFC HAD BEEN A C182 BEING WORKED BY ANOTHER CTLR.
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.