Air carrier landing without clearance.

Attributes
ACN	189310
Time
Date	199109
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : den
State Reference	CO
Altitude	agl bound lower : 0 agl bound upper : 1200
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : den tower : lax
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach descent other landing other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent : approach landing other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 90 flight time total : 15000 flight time type : 1200
ASRS Report	189310
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	incursion : landing without clearance non adherence : clearance
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:

Our aircraft X was arriving at den from the south. Another air carrier Y was arriving from the north at the same time. Approach control vectored both aircraft to crisscross for landing. They were given south runway (26L). We were given north runway (26R). We acquired the other aircraft visually and were told to pass behind and cleared for visual to 26R, remain on approach control frequency and then change to tower frequency at marker. It became a problem doing all the checklists and keeping air carrier Y in sight all the time. We lost him in ground clutter a few times but then reacquired it visually. After landing on 26R and turning off runway onto taxiway, the first officer went to change to ground frequency and said 'oh oh!' radio was still on approach frequency (I think). We contacted ground and were cleared to gate. Think we landed without clearance from tower but nothing was said by tower. Crisscross procedure should be eliminated at denver when not needed.

Original NASA ASRS Text

Title: ACR LNDG WITHOUT CLRNC.

Narrative: OUR ACFT X WAS ARRIVING AT DEN FROM THE S. ANOTHER ACR Y WAS ARRIVING FROM THE N AT THE SAME TIME. APCH CTL VECTORED BOTH ACFT TO CRISSCROSS FOR LNDG. THEY WERE GIVEN S RWY (26L). WE WERE GIVEN N RWY (26R). WE ACQUIRED THE OTHER ACFT VISUALLY AND WERE TOLD TO PASS BEHIND AND CLRED FOR VISUAL TO 26R, REMAIN ON APCH CTL FREQ AND THEN CHANGE TO TWR FREQ AT MARKER. IT BECAME A PROBLEM DOING ALL THE CHKLISTS AND KEEPING ACR Y IN SIGHT ALL THE TIME. WE LOST HIM IN GND CLUTTER A FEW TIMES BUT THEN REACQUIRED IT VISUALLY. AFTER LNDG ON 26R AND TURNING OFF RWY ONTO TAXIWAY, THE FO WENT TO CHANGE TO GND FREQ AND SAID 'OH OH!' RADIO WAS STILL ON APCH FREQ (I THINK). WE CONTACTED GND AND WERE CLRED TO GATE. THINK WE LANDED WITHOUT CLRNC FROM TWR BUT NOTHING WAS SAID BY TWR. CRISSCROSS PROC SHOULD BE ELIMINATED AT DENVER WHEN NOT NEEDED.

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.