Aircraft Y landed with less than standard separation behind aircraft X. System error.

Attributes
ACN	129682
Time
Date	198911
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : prc
State Reference	AZ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : clt
Operator	other
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
Experience	controller non radar : 3 controller radar : 2
ASRS Report	129682
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	conflict : ground critical non adherence : clearance non adherence : required legal separation
Independent Detector	other other : unspecified atc
Resolutory Action	none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While working ground control at prc ATC tower I observed aircraft Y land in close proximity to aircraft X that had just landed on the same runway. I attempted to alert the local controller in time to divert the situation, but was unable to reach him due to the extremely heavy workload. The local controller was occupied looking for aircraft entering the traffic pattern. Prc lacks BRITE radar in the tower cabin. With the large vol of traffic at love field is becoming impossible to safely manage west/O it. In addition, controller workload is increased greatly by management's decision to attempt to provide VFR advisory service to aircraft requesting VFR practice approachs. This is an extremely difficult task for the controllers due to the lack of BRITE radar and the already extremely heavy workload. The installation of BRITE radar in the tower cabin should be a high priority item for the FAA. Aircraft requesting practice INS approachs should be instructed to contact the approach control authority, abq ARTCC, for IFR sep in accordance with the 71210.3I, paragraph 833. This will help reduce controller workload and greatly increase the level of safety at love field, prc.

Original NASA ASRS Text

Title: ACFT Y LANDED WITH LESS THAN STANDARD SEPARATION BEHIND ACFT X. SYSTEM ERROR.

Narrative: WHILE WORKING GND CTL AT PRC ATC TWR I OBSERVED ACFT Y LAND IN CLOSE PROX TO ACFT X THAT HAD JUST LANDED ON THE SAME RWY. I ATTEMPTED TO ALERT THE LCL CTLR IN TIME TO DIVERT THE SITUATION, BUT WAS UNABLE TO REACH HIM DUE TO THE EXTREMELY HEAVY WORKLOAD. THE LCL CTLR WAS OCCUPIED LOOKING FOR ACFT ENTERING THE TFC PATTERN. PRC LACKS BRITE RADAR IN THE TWR CABIN. WITH THE LARGE VOL OF TFC AT LOVE FIELD IS BECOMING IMPOSSIBLE TO SAFELY MANAGE W/O IT. IN ADDITION, CTLR WORKLOAD IS INCREASED GREATLY BY MGMNT'S DECISION TO ATTEMPT TO PROVIDE VFR ADVISORY SVC TO ACFT REQUESTING VFR PRACTICE APCHS. THIS IS AN EXTREMELY DIFFICULT TASK FOR THE CTLRS DUE TO THE LACK OF BRITE RADAR AND THE ALREADY EXTREMELY HEAVY WORKLOAD. THE INSTALLATION OF BRITE RADAR IN THE TWR CABIN SHOULD BE A HIGH PRIORITY ITEM FOR THE FAA. ACFT REQUESTING PRACTICE INS APCHS SHOULD BE INSTRUCTED TO CONTACT THE APCH CTL AUTHORITY, ABQ ARTCC, FOR IFR SEP IN ACCORDANCE WITH THE 71210.3I, PARAGRAPH 833. THIS WILL HELP REDUCE CTLR WORKLOAD AND GREATLY INCREASE THE LEVEL OF SAFETY AT LOVE FIELD, PRC.

Data retrieved from NASA's ASRS site as of August 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.