B777 crew landed at dfw without a clearance.

Attributes
ACN	540688
Time
Date	200203
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 1500
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : d10.tracon tower : dfw.tower
Operator	common carrier : air carrier
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	descent : vacating altitude descent : approach landing : roll
Route In Use	approach : instrument precision
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	540688
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	540689
Events
Anomaly	incursion : landing without clearance non adherence : company policies non adherence : published procedure non adherence : far
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

On approach to runway 13R dfw. Captain flying. First officer doing radio. Relief pilot monitoring. Cleared for approach, not sure if told to contact tower at marker. Assumed first officer made frequency change and did not notice if we were cleared to land. After landing, I asked first officer if he switched to ground. He then realized we were still on approach frequency. We then got on the correct frequency and operations normal after that. There were no runway incursions. I didn't know we were taxiing on wrong frequency for a short time. Most fleets have techniques to FLIP a switch or other methods of reminding crew they have been cleared to land. I don't know of one on the B777, but I think there should be one (I thought this before the events of today). In the past, I have thought it a good idea to have a checklist item for cleared to land. If we had such a technique or procedure, I am sure we would have caught this error before we landed. Supplemental information from acn 540689: cleared ILS runway 13R to contact tower at fix. Set in correct frequency but did not switch to tower at fix. About that time we were talking about wind correction speed. I just forgot to make the switch. Normal no conflict landing. On the ground we realized we had not switched over.

Original NASA ASRS Text

Title: B777 CREW LANDED AT DFW WITHOUT A CLRNC.

Narrative: ON APCH TO RWY 13R DFW. CAPT FLYING. FO DOING RADIO. RELIEF PLT MONITORING. CLRED FOR APCH, NOT SURE IF TOLD TO CONTACT TWR AT MARKER. ASSUMED FO MADE FREQ CHANGE AND DID NOT NOTICE IF WE WERE CLRED TO LAND. AFTER LNDG, I ASKED FO IF HE SWITCHED TO GND. HE THEN REALIZED WE WERE STILL ON APCH FREQ. WE THEN GOT ON THE CORRECT FREQ AND OPS NORMAL AFTER THAT. THERE WERE NO RWY INCURSIONS. I DIDN'T KNOW WE WERE TAXIING ON WRONG FREQ FOR A SHORT TIME. MOST FLEETS HAVE TECHNIQUES TO FLIP A SWITCH OR OTHER METHODS OF REMINDING CREW THEY HAVE BEEN CLRED TO LAND. I DON'T KNOW OF ONE ON THE B777, BUT I THINK THERE SHOULD BE ONE (I THOUGHT THIS BEFORE THE EVENTS OF TODAY). IN THE PAST, I HAVE THOUGHT IT A GOOD IDEA TO HAVE A CHKLIST ITEM FOR CLRED TO LAND. IF WE HAD SUCH A TECHNIQUE OR PROC, I AM SURE WE WOULD HAVE CAUGHT THIS ERROR BEFORE WE LANDED. SUPPLEMENTAL INFO FROM ACN 540689: CLRED ILS RWY 13R TO CONTACT TWR AT FIX. SET IN CORRECT FREQ BUT DID NOT SWITCH TO TWR AT FIX. ABOUT THAT TIME WE WERE TALKING ABOUT WIND CORRECTION SPD. I JUST FORGOT TO MAKE THE SWITCH. NORMAL NO CONFLICT LNDG. ON THE GND WE REALIZED WE HAD NOT SWITCHED OVER.

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.