An air carrier large transport landed without clearance.

Attributes
ACN	229309
Time
Date	199212
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tower : den
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach landing other
Route In Use	approach : visual
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Light Transport
Flight Phase	descent : approach landing other
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 150 flight time total : 17000 flight time type : 1800
ASRS Report	229309
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 5000 flight time type : 1800
ASRS Report	229308
Events
Anomaly	incursion : landing without clearance non adherence : far non adherence : clearance other anomaly other
Independent Detector	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:

We were cleared for a visual to runway 26R den. As we lined up on final, an light transport was cleared for a visual to runway 26L. He reported that he had us in sight. This was relayed to us by approach control. As the light transport approached the runway 26L final, we got a TCASII TA and our scan shifted to the light transport. Our attention was diverted for a considerable time as the light transport continued his flight path toward us and the runway. We continued to get TA's. Once it became apparent there would be no conflict, we were past the point in our approach where we would have normally switched to the tower. We continued our approach and landing. We discovered we were on approach control frequency as we cleared the runway. Factors: fatigue (end of 2 long days) -- approach control failed to switch us to tower. -- Close proximity of the light transport on final approach with attendant TA's on the TCASII.

Original NASA ASRS Text

Title: AN ACR LGT LANDED WITHOUT CLRNC.

Narrative: WE WERE CLRED FOR A VISUAL TO RWY 26R DEN. AS WE LINED UP ON FINAL, AN LTT WAS CLRED FOR A VISUAL TO RWY 26L. HE RPTED THAT HE HAD US IN SIGHT. THIS WAS RELAYED TO US BY APCH CTL. AS THE LTT APCHED THE RWY 26L FINAL, WE GOT A TCASII TA AND OUR SCAN SHIFTED TO THE LTT. OUR ATTN WAS DIVERTED FOR A CONSIDERABLE TIME AS THE LTT CONTINUED HIS FLT PATH TOWARD US AND THE RWY. WE CONTINUED TO GET TA'S. ONCE IT BECAME APPARENT THERE WOULD BE NO CONFLICT, WE WERE PAST THE POINT IN OUR APCH WHERE WE WOULD HAVE NORMALLY SWITCHED TO THE TWR. WE CONTINUED OUR APCH AND LNDG. WE DISCOVERED WE WERE ON APCH CTL FREQ AS WE CLRED THE RWY. FACTORS: FATIGUE (END OF 2 LONG DAYS) -- APCH CTL FAILED TO SWITCH US TO TWR. -- CLOSE PROX OF THE LTT ON FINAL APCH WITH ATTENDANT TA'S ON THE TCASII.

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.