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Carj flight crew advise ZLA controller they have initiated an evasive TCASII maneuver due to an alert. Neither ZLA nor the flight crew observe or track the event initiator.
| Attributes | |
| ACN | 586847 |
| Time | |
| Date | 200307 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : dag.vortac |
| State Reference | CA |
| Altitude | msl single value : 23300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zla.artcc tower : vabb.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Route In Use | departure sid : loop |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller time certified in position1 : 3 |
| ASRS Report | 586847 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne critical other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | flight crew : returned to original clearance flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Airspace Structure ATC Facility Aircraft |
| Primary Problem | Aircraft |
| Situations | |
| ATC Facility | radar equipment : zla.artcc |
Narrative:
Aircraft X departed lax on loop departure over dag-las-slc. Aircraft X was west of dag climbing to FL330 out of FL233. Pilot stated he was descending for an 'RA.' pilot also asked if I had traffic for him. I stated, 'no one in your general area.' pilot descended approximately 500 ft. Pilot later stated he had 11:30 O'clock position traffic converging and descending towards him. At one time, his TCASII showed 2 targets. Separation was not lost with any aircraft.
Original NASA ASRS Text
Title: CARJ FLT CREW ADVISE ZLA CTLR THEY HAVE INITIATED AN EVASIVE TCASII MANEUVER DUE TO AN ALERT. NEITHER ZLA NOR THE FLT CREW OBSERVE OR TRACK THE EVENT INITIATOR.
Narrative: ACFT X DEPARTED LAX ON LOOP DEP OVER DAG-LAS-SLC. ACFT X WAS W OF DAG CLBING TO FL330 OUT OF FL233. PLT STATED HE WAS DSNDING FOR AN 'RA.' PLT ALSO ASKED IF I HAD TFC FOR HIM. I STATED, 'NO ONE IN YOUR GENERAL AREA.' PLT DSNDED APPROX 500 FT. PLT LATER STATED HE HAD 11:30 O'CLOCK POS TFC CONVERGING AND DSNDING TOWARDS HIM. AT ONE TIME, HIS TCASII SHOWED 2 TARGETS. SEPARATION WAS NOT LOST WITH ANY ACFT.
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.