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Air carrier X TCASII TA non adherence to ATC clearance climb from assigned altitude. Ghost target. Aircraft equipment problem TCASII.
| Attributes | |
| ACN | 247002 |
| Time | |
| Date | 199303 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : ord |
| State Reference | IL |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | other personnel other |
| Qualification | controller : radar |
| ASRS Report | 247002 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 5 |
| Events | |
| Anomaly | aircraft equipment problem : less severe altitude deviation : excursion from assigned altitude non adherence : clearance |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X advised he was leaving assigned altitude of 5000 ft because of TA told to return to 5000 ft when possible. He stated he was still getting it. Told to level at 6000 ft and said that it must be his equipment because TA followed him up. There was a clearance deviation of 400 ft by the TCASII aircraft. Communication was initiated by the TCASII aircraft during the maneuver. The closest aircraft was 6 mi in front and 7 mi behind.
Original NASA ASRS Text
Title: ACR X TCASII TA NON ADHERENCE TO ATC CLRNC CLB FROM ASSIGNED ALT. GHOST TARGET. ACFT EQUIP PROB TCASII.
Narrative: ACR X ADVISED HE WAS LEAVING ASSIGNED ALT OF 5000 FT BECAUSE OF TA TOLD TO RETURN TO 5000 FT WHEN POSSIBLE. HE STATED HE WAS STILL GETTING IT. TOLD TO LEVEL AT 6000 FT AND SAID THAT IT MUST BE HIS EQUIP BECAUSE TA FOLLOWED HIM UP. THERE WAS A CLRNC DEV OF 400 FT BY THE TCASII ACFT. COM WAS INITIATED BY THE TCASII ACFT DURING THE MANEUVER. THE CLOSEST ACFT WAS 6 MI IN FRONT AND 7 MI BEHIND.
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.