Air carrier landed on an occupied runway.

Attributes
ACN	111691
Time
Date	198905
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	ground other : taxi
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	landing other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 6000 flight time type : 2000
ASRS Report	111691
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Arriving at bos and initiated approach for runway 4R. Accomplished an approach and landed successfully. During the rollout we could not find a taxiway right away and informed the tower we were still on the active runway. Later we found out that air carrier Y had landed behind us on the same runway. The flight crew did not know if there were 2 aircraft on runway at the same time, but there is speculation that was indeed true. It appears that logan tower did not have good a handle on all aircraft movements on the airport this night.

Original NASA ASRS Text

Title: ACR LANDED ON AN OCCUPIED RWY.

Narrative: ARRIVING AT BOS AND INITIATED APCH FOR RWY 4R. ACCOMPLISHED AN APCH AND LANDED SUCCESSFULLY. DURING THE ROLLOUT WE COULD NOT FIND A TXWY RIGHT AWAY AND INFORMED THE TWR WE WERE STILL ON THE ACTIVE RWY. LATER WE FOUND OUT THAT ACR Y HAD LANDED BEHIND US ON THE SAME RWY. THE FLT CREW DID NOT KNOW IF THERE WERE 2 ACFT ON RWY AT THE SAME TIME, BUT THERE IS SPECULATION THAT WAS INDEED TRUE. IT APPEARS THAT LOGAN TWR DID NOT HAVE GOOD A HANDLE ON ALL ACFT MOVEMENTS ON THE ARPT THIS NIGHT.

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.