Unauthorized landing. Misident of radio frequency.

Attributes
ACN	293560
Time
Date	199501
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : sjc
State Reference	CA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sjc tracon : alb
Operator	common carrier : air carrier
Make Model Name	MD-11
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
ASRS Report	293560
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	293559
Events
Anomaly	incursion : landing without clearance non adherence : clearance non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Cleared for visual runway 12R and the captain. Acknowledged this clearance. On base to final I had not heard the cleared to land and ask the captain if in fact we had been given landing clearance. The captain said yes and we proceeded to a normal landing. Upon clearing the runway the captain then realized that he had not contacted the tower prior to touchdown. Ground was notified as we cleared the runway. Supplemental information from acn 293559: I was doing an IOE for a new first officer. We were told to change to tower and given the frequency and I accidentally hit the change button twice and ended up on approach control again. I then looked quickly at the approach page frequency and saw the approach control frequency in big numbers, not noticing the tower frequency in small numbers. I thought I was on tower and didn't get switched to the approach frequency.

Original NASA ASRS Text

Title: UNAUTH LNDG. MISIDENT OF RADIO FREQ.

Narrative: CLRED FOR VISUAL RWY 12R AND THE CAPT. ACKNOWLEDGED THIS CLRNC. ON BASE TO FINAL I HAD NOT HEARD THE CLRED TO LAND AND ASK THE CAPT IF IN FACT WE HAD BEEN GIVEN LNDG CLRNC. THE CAPT SAID YES AND WE PROCEEDED TO A NORMAL LNDG. UPON CLRING THE RWY THE CAPT THEN REALIZED THAT HE HAD NOT CONTACTED THE TWR PRIOR TO TOUCHDOWN. GND WAS NOTIFIED AS WE CLRED THE RWY. SUPPLEMENTAL INFO FROM ACN 293559: I WAS DOING AN IOE FOR A NEW FO. WE WERE TOLD TO CHANGE TO TWR AND GIVEN THE FREQ AND I ACCIDENTALLY HIT THE CHANGE BUTTON TWICE AND ENDED UP ON APCH CTL AGAIN. I THEN LOOKED QUICKLY AT THE APCH PAGE FREQ AND SAW THE APCH CTL FREQ IN BIG NUMBERS, NOT NOTICING THE TWR FREQ IN SMALL NUMBERS. I THOUGHT I WAS ON TWR AND DIDN'T GET SWITCHED TO THE APCH FREQ.

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.