Narrative:

Logan international airport, boston approach control. Our ASR 9 mode south has been failing resulting in our secondary radar failing. Our immediate fix has been to utilize 'cenrap plus.' this provides us with some altitude information (although unreliable) and enables us to utilize our ARTS tags. During the maintenance of this problem, we have had to go to full cenrap which has no primary radar. Our capacity has been lowered while our workload has increased while working a level V airport. This problem has been with us for 2 weeks now. Some special technicians are here, yet no end is in sight. Is this a national or local problem? And can it be fixed in the near future? I have not been able to find the answers to these questions.

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Original NASA ASRS Text

Title: CTLR AT BOS CLAIMS THAT THEIR ASR 9 SECRA (MODE S) HAS FAILED SEVERAL TIMES FORCING THE FACILITY TO RELY ON CENRAP.

Narrative: LOGAN INTL ARPT, BOSTON APCH CTL. OUR ASR 9 MODE S HAS BEEN FAILING RESULTING IN OUR SECONDARY RADAR FAILING. OUR IMMEDIATE FIX HAS BEEN TO UTILIZE 'CENRAP PLUS.' THIS PROVIDES US WITH SOME ALT INFO (ALTHOUGH UNRELIABLE) AND ENABLES US TO UTILIZE OUR ARTS TAGS. DURING THE MAINT OF THIS PROB, WE HAVE HAD TO GO TO FULL CENRAP WHICH HAS NO PRIMARY RADAR. OUR CAPACITY HAS BEEN LOWERED WHILE OUR WORKLOAD HAS INCREASED WHILE WORKING A LEVEL V ARPT. THIS PROB HAS BEEN WITH US FOR 2 WKS NOW. SOME SPECIAL TECHNICIANS ARE HERE, YET NO END IS IN SIGHT. IS THIS A NATIONAL OR LCL PROB? AND CAN IT BE FIXED IN THE NEAR FUTURE? I HAVE NOT BEEN ABLE TO FIND THE ANSWERS TO THESE QUESTIONS.

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.