Commuter aircraft lands without clearance.

Attributes
ACN	271922
Time
Date	199405
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : sfo
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sfo
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 135
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 255 flight time total : 5734 flight time type : 2870
ASRS Report	271922
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	incursion : landing without clearance non adherence : far
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:

Approach was quite busy and forgot to hand us off to tower. This happens at sfo. Captain (PNF -- who was handling the radios this leg) didn't notice, as he was distracted watching the airplane right next to us doing a parallel approach. I didn't catch it, as I was concerned with heavy departure traffic off both the 1 and 28 runways. We also should have caught it at our required 200 ft checklist call which includes 'cleared to land.' the captain failed to make this call and due my concentration during the last 200 ft, I missed it. If the tower did clear us to land, we didn't hear it as we didn't discover we were still on approach frequency until starting to exit 28R. No traffic conflicts occurred as a result on this incident. Solution: 1) don't become distracted if you don't have to be. 2) when crewmember is distracted, be extra conscious that normal procedures take place. 3) make sure all checklist calls are made. 4) add a mental 'cleared to land' at the 1000 ft and 500 ft checklist calls as extra backups.

Original NASA ASRS Text

Title: COMMUTER ACFT LANDS WITHOUT CLRNC.

Narrative: APCH WAS QUITE BUSY AND FORGOT TO HAND US OFF TO TWR. THIS HAPPENS AT SFO. CAPT (PNF -- WHO WAS HANDLING THE RADIOS THIS LEG) DIDN'T NOTICE, AS HE WAS DISTRACTED WATCHING THE AIRPLANE RIGHT NEXT TO US DOING A PARALLEL APCH. I DIDN'T CATCH IT, AS I WAS CONCERNED WITH HVY DEP TFC OFF BOTH THE 1 AND 28 RWYS. WE ALSO SHOULD HAVE CAUGHT IT AT OUR REQUIRED 200 FT CHKLIST CALL WHICH INCLUDES 'CLRED TO LAND.' THE CAPT FAILED TO MAKE THIS CALL AND DUE MY CONCENTRATION DURING THE LAST 200 FT, I MISSED IT. IF THE TWR DID CLR US TO LAND, WE DIDN'T HEAR IT AS WE DIDN'T DISCOVER WE WERE STILL ON APCH FREQ UNTIL STARTING TO EXIT 28R. NO TFC CONFLICTS OCCURRED AS A RESULT ON THIS INCIDENT. SOLUTION: 1) DON'T BECOME DISTRACTED IF YOU DON'T HAVE TO BE. 2) WHEN CREWMEMBER IS DISTRACTED, BE EXTRA CONSCIOUS THAT NORMAL PROCS TAKE PLACE. 3) MAKE SURE ALL CHKLIST CALLS ARE MADE. 4) ADD A MENTAL 'CLRED TO LAND' AT THE 1000 FT AND 500 FT CHKLIST CALLS AS EXTRA BACKUPS.

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.