 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
The communications network between controllers and pilots was interrupted when new equipment was being cut over.
| Attributes | |
| ACN | 148076 |
| Time | |
| Date | 199006 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zdv |
| State Reference | CO |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdv |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 148076 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
| Situations | |
| ATC Facility | other physical facility |
Narrative:
A major communications failure was caused at den ARTCC when a new equipment was cut in during peak traffic with significant WX. Radio outages, radar outages, landline outages and computer interfacility outages affected the majority of sectors in den ARTCC. During the communications outages, the following unsafe, unsatisfactory conditions occurred: 1) unqualified personnel accepting handoffs over public phone lines. 2) numerous airspace deviations were not reported/processed. 3) pilots were told to call the next air traffic facility and identify themselves and provide flight plan information the next controller. 4) departures from den were not restr adequately. 5) overflts were not rerouted around affected sectors efficiently. 6) as many as 4 sectors were combined at 1 position during this period.
Original NASA ASRS Text
Title: THE COMS NETWORK BETWEEN CTLRS AND PLTS WAS INTERRUPTED WHEN NEW EQUIPMENT WAS BEING CUT OVER.
Narrative: A MAJOR COMS FAILURE WAS CAUSED AT DEN ARTCC WHEN A NEW EQUIP WAS CUT IN DURING PEAK TFC WITH SIGNIFICANT WX. RADIO OUTAGES, RADAR OUTAGES, LANDLINE OUTAGES AND COMPUTER INTERFAC OUTAGES AFFECTED THE MAJORITY OF SECTORS IN DEN ARTCC. DURING THE COMS OUTAGES, THE FOLLOWING UNSAFE, UNSATISFACTORY CONDITIONS OCCURRED: 1) UNQUALIFIED PERSONNEL ACCEPTING HDOFS OVER PUBLIC PHONE LINES. 2) NUMEROUS AIRSPACE DEVIATIONS WERE NOT RPTED/PROCESSED. 3) PLTS WERE TOLD TO CALL THE NEXT AIR TFC FAC AND IDENT THEMSELVES AND PROVIDE FLT PLAN INFO THE NEXT CTLR. 4) DEPS FROM DEN WERE NOT RESTR ADEQUATELY. 5) OVERFLTS WERE NOT REROUTED AROUND AFFECTED SECTORS EFFICIENTLY. 6) AS MANY AS 4 SECTORS WERE COMBINED AT 1 POS DURING THIS PERIOD.
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.