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Reporter states lost all communications -- primary, backup and emergency for 5-10 mins. The 3 radio system appear to be on the same power supply.
| Attributes | |
| ACN | 370504 |
| Time | |
| Date | 199705 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : sna |
| State Reference | CA |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar pilot : instrument pilot : private |
| Experience | controller radar : 10 flight time total : 3000 |
| ASRS Report | 370504 |
| Person 2 | |
| Affiliation | government : faa |
| Function | oversight : supervisor |
| Qualification | controller : radar |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | none taken : detected after the fact |
| Consequence | faa : investigated |
| Supplementary | |
| Primary Problem | Navigational Facility |
| Air Traffic Incident | other |
Narrative:
Coast area of sct lost all communications, primary, backup and emergency for 5-10 mins. It appears that all 3 radio system are on the same power supply. Callback conversation with reporter revealed the following information: reporter stated he filed a ucr on the outage and recently received word that the ucr is open and that problem will continue to be investigated. Reporter indicated that reference was made to a switch in the power supply which might be the problem. Reporter also indicated that no mention was made to separate the frequencys from the same power supply.
Original NASA ASRS Text
Title: RPTR STATES LOST ALL COMS -- PRIMARY, BACKUP AND EMER FOR 5-10 MINS. THE 3 RADIO SYS APPEAR TO BE ON THE SAME PWR SUPPLY.
Narrative: COAST AREA OF SCT LOST ALL COMS, PRIMARY, BACKUP AND EMER FOR 5-10 MINS. IT APPEARS THAT ALL 3 RADIO SYS ARE ON THE SAME PWR SUPPLY. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED HE FILED A UCR ON THE OUTAGE AND RECENTLY RECEIVED WORD THAT THE UCR IS OPEN AND THAT PROB WILL CONTINUE TO BE INVESTIGATED. RPTR INDICATED THAT REF WAS MADE TO A SWITCH IN THE PWR SUPPLY WHICH MIGHT BE THE PROB. RPTR ALSO INDICATED THAT NO MENTION WAS MADE TO SEPARATE THE FREQS FROM THE SAME PWR SUPPLY.
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.