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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Edwards approach controller fails to advise air carrier B737 of same altitude, crossing traffic, a PA46 malibu. PIC follows TCASII RA and descends, with PA46 crossing overhead, 800 ft above.
| Attributes | |
| ACN | 362765 |
| Time | |
| Date | 199703 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : hyp |
| State Reference | CA |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | cruise other |
| Route In Use | enroute other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | PA-46 Malibu |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 15000 flight time type : 9000 |
| ASRS Report | 362765 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 800 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
While flying through joshua's airspace at FL280 en route to el nido VOR, we received a TA on TCASII. We were surprised to see that the intruding aircraft was at our altitude. Within a few seconds the TA changed to an RA and at that moment we established visual contact with what appeared to be a single engine piper malibu. We began a descent as directed by TCASII and advised joshua that we were doing so. We crossed paths with the aircraft, approximately 800 ft below his altitude. Once clear of conflict we advised joshua and began climbing back to FL280. At this point our guess is the controller failed to notify us of the traffic.
Original NASA ASRS Text
Title: EDWARDS APCH CTLR FAILS TO ADVISE ACR B737 OF SAME ALT, XING TFC, A PA46 MALIBU. PIC FOLLOWS TCASII RA AND DSNDS, WITH PA46 XING OVERHEAD, 800 FT ABOVE.
Narrative: WHILE FLYING THROUGH JOSHUA'S AIRSPACE AT FL280 ENRTE TO EL NIDO VOR, WE RECEIVED A TA ON TCASII. WE WERE SURPRISED TO SEE THAT THE INTRUDING ACFT WAS AT OUR ALT. WITHIN A FEW SECONDS THE TA CHANGED TO AN RA AND AT THAT MOMENT WE ESTABLISHED VISUAL CONTACT WITH WHAT APPEARED TO BE A SINGLE ENG PIPER MALIBU. WE BEGAN A DSCNT AS DIRECTED BY TCASII AND ADVISED JOSHUA THAT WE WERE DOING SO. WE CROSSED PATHS WITH THE ACFT, APPROX 800 FT BELOW HIS ALT. ONCE CLR OF CONFLICT WE ADVISED JOSHUA AND BEGAN CLBING BACK TO FL280. AT THIS POINT OUR GUESS IS THE CTLR FAILED TO NOTIFY US OF THE TFC.
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.