Acy TRACON controller reports multiple anomalies with the ASR-9 radar system.

Attributes
ACN	699695
Time
Date	200606
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : acy.tracon
State Reference	NJ
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 18
ASRS Report	699695
Events
Independent Detector	other controllera
Resolutory Action	none taken : unable
Supplementary
Problem Areas	Navigational Facility
Primary Problem	Navigational Facility
Situations
ATC Facility	radar equipment : acy.tracon

Narrative:

There has been a chronic ongoing problem with the atlantic city ATC tower ASR 9 radar system. The problem includes alpha numeric tags going into coast and eventually dropping off targets; mode C readouts disappearing; and aircraft going into conflict alert with themselves. The problem has existed for an extended period and was cited as a contributing factor in a recent operational deviation. If this unsafe condition is allowed to continue; it will contribute to more than an operational deviation. An unsafe condition report FAA form 1800-1 was filed in early 2006. A previous ucr was filed in 2004 for the same condition.

Original NASA ASRS Text

Title: ACY TRACON CTLR RPTS MULTIPLE ANOMALIES WITH THE ASR-9 RADAR SYS.

Narrative: THERE HAS BEEN A CHRONIC ONGOING PROB WITH THE ATLANTIC CITY ATC TWR ASR 9 RADAR SYS. THE PROB INCLUDES ALPHA NUMERIC TAGS GOING INTO COAST AND EVENTUALLY DROPPING OFF TARGETS; MODE C READOUTS DISAPPEARING; AND ACFT GOING INTO CONFLICT ALERT WITH THEMSELVES. THE PROB HAS EXISTED FOR AN EXTENDED PERIOD AND WAS CITED AS A CONTRIBUTING FACTOR IN A RECENT OPDEV. IF THIS UNSAFE CONDITION IS ALLOWED TO CONTINUE; IT WILL CONTRIBUTE TO MORE THAN AN OPDEV. AN UNSAFE CONDITION RPT FAA FORM 1800-1 WAS FILED IN EARLY 2006. A PREVIOUS UCR WAS FILED IN 2004 FOR THE SAME CONDITION.

Data retrieved from NASA's ASRS site as of January 2009 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.