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ATC equipment problem telephone company equipment failure caused ATCT ARTCC intrafac coordination problem. Situation no battery backup.
| Attributes | |
| ACN | 240197 |
| Time | |
| Date | 199304 |
| Day | Sun |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : cos |
| State Reference | CO |
| Aircraft 1 | |
| Controlling Facilities | tower : cos |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : non radar |
| Experience | controller radar : 7 |
| ASRS Report | 240197 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : unable |
| Consequence | faa : investigated |
| Supplementary | |
| Air Traffic Incident | Intra Facility Coordination Failure other |
| Situations | |
| ATC Facility | other physical facility |
Narrative:
A failed telephone company power supply resulted in loss of coordination and automation lines between cos ATCT and ZDV for approximately 5 hours. Traffic was light initially but increased to moderate. Radar handoffs with center were accomplished through a third party (publication ATCT) as was other flight plan and control information. Apparently, these power supplies, of which there are several in this facility, have no backup and, as occurred, are subject to fail without warning. What if this happened during busy traffic?
Original NASA ASRS Text
Title: ATC EQUIP PROB TELCO EQUIP FAILURE CAUSED ATCT ARTCC INTRAFAC COORD PROB. SIT NO BATTERY BACKUP.
Narrative: A FAILED TELCO PWR SUPPLY RESULTED IN LOSS OF COORD AND AUTOMATION LINES BTWN COS ATCT AND ZDV FOR APPROX 5 HRS. TFC WAS LIGHT INITIALLY BUT INCREASED TO MODERATE. RADAR HDOFS WITH CTR WERE ACCOMPLISHED THROUGH A THIRD PARTY (PUB ATCT) AS WAS OTHER FLT PLAN AND CTL INFO. APPARENTLY, THESE PWR SUPPLIES, OF WHICH THERE ARE SEVERAL IN THIS FACILITY, HAVE NO BACKUP AND, AS OCCURRED, ARE SUBJECT TO FAIL WITHOUT WARNING. WHAT IF THIS HAPPENED DURING BUSY 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.