Sfo controller described amass event when equipment failed to display all normal information.

Attributes
ACN	751273
Time
Date	200708
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo.airport
State Reference	CA
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	landing : roll
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller time certified in position1 : 9
ASRS Report	751273
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	FAA
Primary Problem	FAA

Narrative:

Amass did not display 'gates' for landing aircraft (air carrier X) and did not have a tag on the aircraft. Supervisor was informed of the malfunction. Supervisor came over and watched as equipment was malfunctioning. No further actions were taken maintenance. Was not notified. No corrective actions taken.

Original NASA ASRS Text

Title: SFO CTLR DESCRIBED AMASS EVENT WHEN EQUIP FAILED TO DISPLAY ALL NORMAL INFO.

Narrative: AMASS DID NOT DISPLAY 'GATES' FOR LNDG ACFT (ACR X) AND DID NOT HAVE A TAG ON THE ACFT. SUPVR WAS INFORMED OF THE MALFUNCTION. SUPVR CAME OVER AND WATCHED AS EQUIP WAS MALFUNCTIONING. NO FURTHER ACTIONS WERE TAKEN MAINT. WAS NOT NOTIFIED. NO CORRECTIVE ACTIONS TAKEN.

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.