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An IFR air carrier medium large transport climbed in response to a TCASII command caused by a VFR small aircraft.
| Attributes | |
| ACN | 243242 |
| Time | |
| Date | 199306 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : vcn airport : phl |
| State Reference | PA |
| Altitude | msl bound lower : 8000 msl bound upper : 8300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Small Aircraft, Low Wing, 2 Eng, Retractable Gear |
| Flight Phase | climbout : intermediate altitude |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 185 flight time total : 20000 flight time type : 3000 |
| ASRS Report | 243242 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 800 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were assigned 8000 ft MSL. Phl called traffic approximately 10 O'clock, climbing out of 6700 ft and they thought it was light twin and thought it would be leveling at 7500 ft. We saw traffic on TCASII and he went from white to yellow to red. The arrow indicated he was climbing and we received an RA. We followed the TCASII command and climbed to 8300 ft. At that time we saw the aircraft and stopped the climb as it was clear we would miss him. Approach was informed that we were following TCASII and we also called back level when the RA was over. No further problem.
Original NASA ASRS Text
Title: AN IFR ACR MLG CLBED IN RESPONSE TO A TCASII COMMAND CAUSED BY A VFR SMA.
Narrative: WE WERE ASSIGNED 8000 FT MSL. PHL CALLED TFC APPROX 10 O'CLOCK, CLBING OUT OF 6700 FT AND THEY THOUGHT IT WAS LIGHT TWIN AND THOUGHT IT WOULD BE LEVELING AT 7500 FT. WE SAW TFC ON TCASII AND HE WENT FROM WHITE TO YELLOW TO RED. THE ARROW INDICATED HE WAS CLBING AND WE RECEIVED AN RA. WE FOLLOWED THE TCASII COMMAND AND CLBED TO 8300 FT. AT THAT TIME WE SAW THE ACFT AND STOPPED THE CLB AS IT WAS CLR WE WOULD MISS HIM. APCH WAS INFORMED THAT WE WERE FOLLOWING TCASII AND WE ALSO CALLED BACK LEVEL WHEN THE RA WAS OVER. NO FURTHER PROB.
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.