Landing without clearance for air carrier widebody transport at dfw.

Attributes
ACN	146026
Time
Date	199004
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 3000 msl bound upper : 3000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : dfw
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 210 flight time total : 3500
ASRS Report	146026
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical incursion : landing without clearance non adherence : published procedure non adherence : clearance
Independent Detector	other controllera other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Transition to the landing confign, aircraft encountered steady stick shaker while turning final at 200 KTS, flaps 1 degree. Assuming some type of wind shear, advised approach of that fact. While trying to determine if the stick shaker was wind shear or an aircraft malfunction, no frequency switch was made to dfw tower. The captain, while analyzing aircraft systems, reported the aircraft was cleared to land, assuming the clearance was given by approach. Landing on 17L was uneventful. On rollout, a call was made to dfw tower informing them of our presence, of which they were aware.

Original NASA ASRS Text

Title: LNDG WITHOUT CLRNC FOR ACR WDB AT DFW.

Narrative: TRANSITION TO THE LNDG CONFIGN, ACFT ENCOUNTERED STEADY STICK SHAKER WHILE TURNING FINAL AT 200 KTS, FLAPS 1 DEG. ASSUMING SOME TYPE OF WIND SHEAR, ADVISED APCH OF THAT FACT. WHILE TRYING TO DETERMINE IF THE STICK SHAKER WAS WIND SHEAR OR AN ACFT MALFUNCTION, NO FREQ SWITCH WAS MADE TO DFW TWR. THE CAPT, WHILE ANALYZING ACFT SYSTEMS, RPTED THE ACFT WAS CLRED TO LAND, ASSUMING THE CLRNC WAS GIVEN BY APCH. LNDG ON 17L WAS UNEVENTFUL. ON ROLLOUT, A CALL WAS MADE TO DFW TWR INFORMING THEM OF OUR PRESENCE, OF WHICH THEY WERE AWARE.

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.