Mem final monitor controller advised supervisor that aircraft targets were dropping off on short fin...

Attributes
ACN	628364
Time
Date	200408
Day	Sat
Place
Locale Reference	atc facility : mem.tracon
Aircraft 1
Controlling Facilities	tracon : mem.tracon
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach
Aircraft 2
Flight Phase	descent : approach
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 24
ASRS Report	628364
Person 2
Function	controller : supervisor
Events
Anomaly	other anomaly other
Independent Detector	other controllera other controllerb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

While working final monitor west, I brought to the attention of the on-duty supervisor, the fact that aircraft were dropping off radar on short final. I asked him how we could provide separation to the trailing aircraft and comply with the 7110.65. I did not get an answer. Also, I and the other final monitor (AME) also complained that every aircraft joining the runway 36R localizer at approximately 15 NM was showing well left off course and each aircraft was touching the ntz. They would rejoin the localizer centerline at approximately 2 NM inside the step-down fix. All aircraft except one reported on the centerline of the localizer. We may have a map alignment problem. No action was taken by the on-duty supervisor.

Original NASA ASRS Text

Title: MEM FINAL MONITOR CTLR ADVISED SUPVR THAT ACFT TARGETS WERE DROPPING OFF ON SHORT FINAL AND, IN ADDITION, THAT THERE MAY BE A MAP ALIGNMENT PROB.

Narrative: WHILE WORKING FINAL MONITOR W, I BROUGHT TO THE ATTN OF THE ON-DUTY SUPVR, THE FACT THAT ACFT WERE DROPPING OFF RADAR ON SHORT FINAL. I ASKED HIM HOW WE COULD PROVIDE SEPARATION TO THE TRAILING ACFT AND COMPLY WITH THE 7110.65. I DID NOT GET AN ANSWER. ALSO, I AND THE OTHER FINAL MONITOR (AME) ALSO COMPLAINED THAT EVERY ACFT JOINING THE RWY 36R LOC AT APPROX 15 NM WAS SHOWING WELL L OFF COURSE AND EACH ACFT WAS TOUCHING THE NTZ. THEY WOULD REJOIN THE LOC CTRLINE AT APPROX 2 NM INSIDE THE STEP-DOWN FIX. ALL ACFT EXCEPT ONE RPTED ON THE CTRLINE OF THE LOC. WE MAY HAVE A MAP ALIGNMENT PROB. NO ACTION WAS TAKEN BY THE ON-DUTY SUPVR.

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.

Mem final monitor controller advised supervisor that aircraft targets were dropping off on short final and, in addition, that there may be a map alignment problem.