Air carrier was turning off the runway as a second air carrier was over the threshold.

Attributes
ACN	123081
Time
Date	198909
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : ewr
State Reference	NJ
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	ground other : taxi landing other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 4 Turbojet Eng
Flight Phase	landing other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	123081
Person 2
Affiliation	government : faa
Function	controller : ground
Qualification	controller : non radar
ASRS Report	123189
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	flight crew : exited adverse environment
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

Air carrier X was cleared to land on runway 4L. Air carrier Y called and was advised he was faster than traffic ahead and to begin a speed reduction. Air carrier X landed and was told to clear at high speed taxiway Q, and continue well clear of the runway. Air carrier X was clearing the runway at high speed taxiway Q as air carrier Y was approaching the threshold. Air carrier X continued toward taxiway M, and based on my anticipation of air carrier X being clear of the runway, air carrier Y was permitted to land. It was felt by another controller that a sep error had taken place, but in fact it had not.

Original NASA ASRS Text

Title: ACR WAS TURNING OFF THE RWY AS A SECOND ACR WAS OVER THE THRESHOLD.

Narrative: ACR X WAS CLRED TO LAND ON RWY 4L. ACR Y CALLED AND WAS ADVISED HE WAS FASTER THAN TFC AHEAD AND TO BEGIN A SPD REDUCTION. ACR X LANDED AND WAS TOLD TO CLR AT HIGH SPD TXWY Q, AND CONTINUE WELL CLR OF THE RWY. ACR X WAS CLRING THE RWY AT HIGH SPD TXWY Q AS ACR Y WAS APCHING THE THRESHOLD. ACR X CONTINUED TOWARD TXWY M, AND BASED ON MY ANTICIPATION OF ACR X BEING CLR OF THE RWY, ACR Y WAS PERMITTED TO LAND. IT WAS FELT BY ANOTHER CTLR THAT A SEP ERROR HAD TAKEN PLACE, BUT IN FACT IT HAD NOT.

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.