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ZHU radar associate controller reported loss of separation with 3 aircraft in non radar crossover/descent incident.
| Attributes | |
| ACN | 602765 |
| Time | |
| Date | 200312 |
| Day | Thu |
| Place | |
| Locale Reference | intersection : sword |
| State Reference | FO |
| Altitude | msl bound lower : 29000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc artcc : zhu.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Harrier |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : a509.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zhu.artcc artcc : zma.artcc |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Route In Use | enroute airway : a758.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar controller : handoff position |
| Qualification | controller : radar |
| Experience | controller non radar : 15 controller radar : 10 controller time certified in position1 : 15 |
| ASRS Report | 602765 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance Aircraft |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Previous controller requested merida controller to have aircraft X cross sword at FL290 for traffic. At approximately XA30 merida called me at the ocean d-side to advise that they had lost radar and communications with HS25 (aircraft X) and that at 25 mi southwest of sword he was FL330 down to FL290. We are required to separate non radar 15 mins north at sword, eliom and frish. HS25 showed sword at XF32Z, and eliom at XF40Z. His traffic, an A320, showed eliom at XF29Z -- only 11 mins. I tried to call miami controller and stop air carrier Y, who was head on at FL310 swbound. Miami advised aircraft was 4 mins early over minon (XA40Z) and no radar and no communications. New york commercial radio was unable to reach any of these aircraft. The ocean radar was unable to reach any of these aircraft. Additional situation: air carrier, west of mydia at FL330, (XB11Z) checked on with ocean radar non radar at FL310 should have been at FL330 at XB20 (XG10Z). I got control to climb from merida controller and realized through another aircraft to climb and maintain FL330 and report reaching. Then, I coordinated with miami FL300 climbing to FL330. Very dangerous.
Original NASA ASRS Text
Title: ZHU RADAR ASSOCIATE CTLR RPTED LOSS OF SEPARATION WITH 3 ACFT IN NON RADAR CROSSOVER/DSCNT INCIDENT.
Narrative: PREVIOUS CTLR REQUESTED MERIDA CTLR TO HAVE ACFT X CROSS SWORD AT FL290 FOR TFC. AT APPROX XA30 MERIDA CALLED ME AT THE OCEAN D-SIDE TO ADVISE THAT THEY HAD LOST RADAR AND COMS WITH HS25 (ACFT X) AND THAT AT 25 MI SW OF SWORD HE WAS FL330 DOWN TO FL290. WE ARE REQUIRED TO SEPARATE NON RADAR 15 MINS N AT SWORD, ELIOM AND FRISH. HS25 SHOWED SWORD AT XF32Z, AND ELIOM AT XF40Z. HIS TFC, AN A320, SHOWED ELIOM AT XF29Z -- ONLY 11 MINS. I TRIED TO CALL MIAMI CTLR AND STOP ACR Y, WHO WAS HEAD ON AT FL310 SWBOUND. MIAMI ADVISED ACFT WAS 4 MINS EARLY OVER MINON (XA40Z) AND NO RADAR AND NO COMS. NEW YORK COMMERCIAL RADIO WAS UNABLE TO REACH ANY OF THESE ACFT. THE OCEAN RADAR WAS UNABLE TO REACH ANY OF THESE ACFT. ADDITIONAL SIT: ACR, W OF MYDIA AT FL330, (XB11Z) CHKED ON WITH OCEAN RADAR NON RADAR AT FL310 SHOULD HAVE BEEN AT FL330 AT XB20 (XG10Z). I GOT CTL TO CLB FROM MERIDA CTLR AND REALIZED THROUGH ANOTHER ACFT TO CLB AND MAINTAIN FL330 AND RPT REACHING. THEN, I COORDINATED WITH MIAMI FL300 CLBING TO FL330. VERY DANGEROUS.
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.