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ZMA controller reports a host computer failure. System was down for approximately 20 mins. Reporter believes that a software problem caused the outage.
| Attributes | |
| ACN | 349479 |
| Time | |
| Date | 199610 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zma |
| State Reference | FL |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Daylight |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 12 |
| ASRS Report | 349479 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 14 |
| ASRS Report | 349478 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
At approximately XX30 I noticed data blocks not following the beacon targets on my radar scope. I was unable to make any computer entries during this 20 min outage. The ARTCC did switch to the last backup system (darc). First indications appear to be software related. Supplemental information from acn 349478: at approximately XX40 the NAS/host stopped processing data. I observed 3 tracked targets I had freeze, the primary continued on course. At XX56 a message appeared on the dcrd stating 'NAS/darc operational.' supplemental information from acn 349477: the 'mwp' WX display system used at ZMA failed about XX00. We already have a degraded WX display on our pvd due to the type radars used by the center.
Original NASA ASRS Text
Title: ZMA CTLR RPTS A HOST COMPUTER FAILURE. SYS WAS DOWN FOR APPROX 20 MINS. RPTR BELIEVES THAT A SOFTWARE PROB CAUSED THE OUTAGE.
Narrative: AT APPROX XX30 I NOTICED DATA BLOCKS NOT FOLLOWING THE BEACON TARGETS ON MY RADAR SCOPE. I WAS UNABLE TO MAKE ANY COMPUTER ENTRIES DURING THIS 20 MIN OUTAGE. THE ARTCC DID SWITCH TO THE LAST BACKUP SYS (DARC). FIRST INDICATIONS APPEAR TO BE SOFTWARE RELATED. SUPPLEMENTAL INFO FROM ACN 349478: AT APPROX XX40 THE NAS/HOST STOPPED PROCESSING DATA. I OBSERVED 3 TRACKED TARGETS I HAD FREEZE, THE PRIMARY CONTINUED ON COURSE. AT XX56 A MESSAGE APPEARED ON THE DCRD STATING 'NAS/DARC OPERATIONAL.' SUPPLEMENTAL INFO FROM ACN 349477: THE 'MWP' WX DISPLAY SYS USED AT ZMA FAILED ABOUT XX00. WE ALREADY HAVE A DEGRADED WX DISPLAY ON OUR PVD DUE TO THE TYPE RADARS USED BY THE CTR.
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.