Air carrier widebody transport lands without clearance at sfo.

Attributes
ACN	158270
Time
Date	199009
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 3 Turbojet Eng
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 16000 flight time type : 1800
ASRS Report	157820
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8000 flight time type : 800
ASRS Report	158469
Events
Anomaly	incursion : landing without clearance non adherence : far 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:

The flight was normal with no problems except we forgot (or I forgot) to switch to tower for landing clearance. I remember approach control giving the frequency, but I really don't know if I switched or not. After landing we discovered that I apparently did not. My mind is a blank on the subject. The day started early am (body time) in dtw. We had flown to dfw and been reassigned to fly to sfo instead of lax. I had not slept well the night before. My usual schedule has been all-nighters for quite some time. I had trouble staying alert all day and apparently just blanked out on approach. I suppose this is the age-old problem of trying to be awake and alert when your body says you should be asleep. The bad thing here was that neither of the other 2 crew members caught my mistake. Supplemental information from acn 158469: I used poor judgement in assuming the captain had contacted the tower and not insisting he confirm our clearance to land.

Original NASA ASRS Text

Title: ACR WDB LANDS WITHOUT CLRNC AT SFO.

Narrative: THE FLT WAS NORMAL WITH NO PROBS EXCEPT WE FORGOT (OR I FORGOT) TO SWITCH TO TWR FOR LNDG CLRNC. I REMEMBER APCH CTL GIVING THE FREQ, BUT I REALLY DON'T KNOW IF I SWITCHED OR NOT. AFTER LNDG WE DISCOVERED THAT I APPARENTLY DID NOT. MY MIND IS A BLANK ON THE SUBJECT. THE DAY STARTED EARLY AM (BODY TIME) IN DTW. WE HAD FLOWN TO DFW AND BEEN REASSIGNED TO FLY TO SFO INSTEAD OF LAX. I HAD NOT SLEPT WELL THE NIGHT BEFORE. MY USUAL SCHEDULE HAS BEEN ALL-NIGHTERS FOR QUITE SOME TIME. I HAD TROUBLE STAYING ALERT ALL DAY AND APPARENTLY JUST BLANKED OUT ON APCH. I SUPPOSE THIS IS THE AGE-OLD PROB OF TRYING TO BE AWAKE AND ALERT WHEN YOUR BODY SAYS YOU SHOULD BE ASLEEP. THE BAD THING HERE WAS THAT NEITHER OF THE OTHER 2 CREW MEMBERS CAUGHT MY MISTAKE. SUPPLEMENTAL INFO FROM ACN 158469: I USED POOR JUDGEMENT IN ASSUMING THE CAPT HAD CONTACTED THE TWR AND NOT INSISTING HE CONFIRM OUR CLRNC TO LAND.

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.