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Air carrier medium large transport altitude deviation excursion from clearance altitude in response to TCASII RA.
| Attributes | |
| ACN | 191953 |
| Time | |
| Date | 199110 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : pns |
| State Reference | FL |
| Altitude | msl bound lower : 10600 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : pns |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | cruise other descent other |
| Route In Use | enroute airway : pns |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | general aviation : personal |
| Make Model Name | Small Aircraft |
| Flight Phase | cruise other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : private pilot : instrument pilot : atp pilot : commercial pilot : flight engineer |
| Experience | flight time last 90 days : 105 flight time total : 12000 flight time type : 1100 |
| ASRS Report | 191953 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 240 flight time total : 4500 flight time type : 240 |
| ASRS Report | 191808 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 0 vertical : 1000 |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
On descent into phs we were level at 11000 ft, the assigned altitude. About 40 mi from the airport, jacksonville center called traffic at 12 O'clock. I responded that we did not see the traffic. We were then switched to 119.0 pns approach. As we dialed in the frequency we began to receive a warning on our TCASII of approaching traffic. At the moment we checked in we got an RA and followed the instructions to descend. The private aircraft was visually sighted passing over us at 11600 ft. We were probably at this time at 10600 ft. On the ground I talked with the ATC supervisor. He said we did not violate any airspace because he cleared us to 4000 ft as we checked in, but we did not hear the clearance because it was covered by another aircraft radio transmission.
Original NASA ASRS Text
Title: ACR MLG ALTDEV EXCURSION FROM CLRNC ALT IN RESPONSE TO TCASII RA.
Narrative: ON DSCNT INTO PHS WE WERE LEVEL AT 11000 FT, THE ASSIGNED ALT. ABOUT 40 MI FROM THE ARPT, JACKSONVILLE CENTER CALLED TFC AT 12 O'CLOCK. I RESPONDED THAT WE DID NOT SEE THE TFC. WE WERE THEN SWITCHED TO 119.0 PNS APCH. AS WE DIALED IN THE FREQ WE BEGAN TO RECEIVE A WARNING ON OUR TCASII OF APCHING TFC. AT THE MOMENT WE CHKED IN WE GOT AN RA AND FOLLOWED THE INSTRUCTIONS TO DSND. THE PRIVATE ACFT WAS VISUALLY SIGHTED PASSING OVER US AT 11600 FT. WE WERE PROBABLY AT THIS TIME AT 10600 FT. ON THE GND I TALKED WITH THE ATC SUPVR. HE SAID WE DID NOT VIOLATE ANY AIRSPACE BECAUSE HE CLRED US TO 4000 FT AS WE CHKED IN, BUT WE DID NOT HEAR THE CLRNC BECAUSE IT WAS COVERED BY ANOTHER ACFT RADIO XMISSION.
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.