|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||atc facility : mia|
|Controlling Facilities||tower : sfb|
|Affiliation||government : faa|
|Function||controller : approach|
|Qualification||controller : radar|
|Experience||controller military : 4|
controller non radar : 1
controller radar : 15
|Anomaly||other anomaly other|
|Independent Detector||other controllera|
|Resolutory Action||none taken : anomaly accepted|
|Consequence||faa : investigated|
|Primary Problem||Navigational Facility|
|Air Traffic Incident||other|
Much WX in the area, just came out of holding due to unsuitable WX at the airport for approachs, consequently, very busy. I was working approximately 15 aircraft in the terminal area at my scope. The miami ASR-9 radar failed, and it took more than 1 min and 30 seconds for the backup (fll) radar to come up at my scope. This was very scary and could have resulted in disastrous consequences. As of this date the mia radar system (ASR-9) has failed 11 times since may/95. The fll system has failed 3 times. If mia and fll failed simultaneously at a very busy air traffic time, imagine the possible consequences! No matter what anyone says, we are not prepared to go into an emergency non-radar situation. Callback conversation with reporter revealed the following information: reporter stated because of the number of radar failures an FAA investigative team was brought in. Failures were happening during inclement WX. Problem was found to be the mode south. Mode south has been disabled and to the reporter's knowledge the mia ASR 9 has not failed. Reporter was told the reason fll radar would not come up was too many position were making keyboard entries and his was being rejected. Cenrap is now available by keyboard entry.
Original NASA ASRS Text
Title: ATC EQUIP PROB RADAR ASR 9 ONGOING FAILURES.
Narrative: MUCH WX IN THE AREA, JUST CAME OUT OF HOLDING DUE TO UNSUITABLE WX AT THE ARPT FOR APCHS, CONSEQUENTLY, VERY BUSY. I WAS WORKING APPROX 15 ACFT IN THE TERMINAL AREA AT MY SCOPE. THE MIAMI ASR-9 RADAR FAILED, AND IT TOOK MORE THAN 1 MIN AND 30 SECONDS FOR THE BACKUP (FLL) RADAR TO COME UP AT MY SCOPE. THIS WAS VERY SCARY AND COULD HAVE RESULTED IN DISASTROUS CONSEQUENCES. AS OF THIS DATE THE MIA RADAR SYS (ASR-9) HAS FAILED 11 TIMES SINCE MAY/95. THE FLL SYS HAS FAILED 3 TIMES. IF MIA AND FLL FAILED SIMULTANEOUSLY AT A VERY BUSY AIR TFC TIME, IMAGINE THE POSSIBLE CONSEQUENCES! NO MATTER WHAT ANYONE SAYS, WE ARE NOT PREPARED TO GO INTO AN EMER NON-RADAR SIT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED BECAUSE OF THE NUMBER OF RADAR FAILURES AN FAA INVESTIGATIVE TEAM WAS BROUGHT IN. FAILURES WERE HAPPENING DURING INCLEMENT WX. PROB WAS FOUND TO BE THE MODE S. MODE S HAS BEEN DISABLED AND TO THE RPTR'S KNOWLEDGE THE MIA ASR 9 HAS NOT FAILED. RPTR WAS TOLD THE REASON FLL RADAR WOULD NOT COME UP WAS TOO MANY POS WERE MAKING KEYBOARD ENTRIES AND HIS WAS BEING REJECTED. CENRAP IS NOW AVAILABLE BY KEYBOARD ENTRY.
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.