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T75 controller climbs unidented E145 even though radar identify has not been established. Stl tower failed to notify T75 and E145 about non operational E145 transponder.
| Attributes | |
| ACN | 517142 |
| Time | |
| Date | 200107 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : stl.airport |
| State Reference | MO |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : t75.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | pilot : private |
| Experience | controller limited radar : 4 controller military : 3 controller radar : 15 controller supervisory : 0.25 flight time total : 30 |
| ASRS Report | 517142 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure |
| Situations | |
| ATC Facility | procedure or policy : stl.tower |
Narrative:
Air carrier X departed stl and the transponder was not operating. Departure never called radar contact, but climbed aircraft to 15000 ft. Traffic flew an unknown distance before he asked for a turn south. Departure turned south and tried to identify aircraft. When air carrier X was 20 mi west of stl out of 11000 ft, he was radar idented using primary target procedures. This would not have occurred had the stl control tower done their job of insuring target acquisition on departure. They failed to notice and call the departure controller to give radar handoff on air carrier X resulting in possible violations with other aircraft in the vicinity. Whether violations occurred or not is unknown since no target (even radar) was seen until 20 mi west of stl. This happens on a regular basis but usually there is a beacon instead of nothing. The tower's failure to fulfill their obligation could have caused serious problems, even accidents, since TCASII would not have helped in this situation.
Original NASA ASRS Text
Title: T75 CTLR CLBS UNIDENTED E145 EVEN THOUGH RADAR IDENT HAS NOT BEEN ESTABLISHED. STL TWR FAILED TO NOTIFY T75 AND E145 ABOUT NON OPERATIONAL E145 XPONDER.
Narrative: ACR X DEPARTED STL AND THE XPONDER WAS NOT OPERATING. DEP NEVER CALLED RADAR CONTACT, BUT CLBED ACFT TO 15000 FT. TFC FLEW AN UNKNOWN DISTANCE BEFORE HE ASKED FOR A TURN S. DEP TURNED S AND TRIED TO IDENT ACFT. WHEN ACR X WAS 20 MI W OF STL OUT OF 11000 FT, HE WAS RADAR IDENTED USING PRIMARY TARGET PROCS. THIS WOULD NOT HAVE OCCURRED HAD THE STL CTL TWR DONE THEIR JOB OF INSURING TARGET ACQUISITION ON DEP. THEY FAILED TO NOTICE AND CALL THE DEP CTLR TO GIVE RADAR HDOF ON ACR X RESULTING IN POSSIBLE VIOLATIONS WITH OTHER ACFT IN THE VICINITY. WHETHER VIOLATIONS OCCURRED OR NOT IS UNKNOWN SINCE NO TARGET (EVEN RADAR) WAS SEEN UNTIL 20 MI W OF STL. THIS HAPPENS ON A REGULAR BASIS BUT USUALLY THERE IS A BEACON INSTEAD OF NOTHING. THE TWR'S FAILURE TO FULFILL THEIR OBLIGATION COULD HAVE CAUSED SERIOUS PROBS, EVEN ACCIDENTS, SINCE TCASII WOULD NOT HAVE HELPED IN THIS SIT.
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.