M20 pilot at non twred airport has a gear up landing.

Attributes
ACN	704901
Time
Date	200607
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : tvy.airport
State Reference	UT
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Mooney Aircraft Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 21 flight time total : 5000 flight time type : 1000
ASRS Report	704901
Events
Anomaly	aircraft equipment problem : critical ground encounters : gear up landing
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

Entering tuoela valley from northeast could not see student traffic after doing touch-and-go training. Made several calls to announce intentions. On long final saw other aircraft on left base for runway 17. I broke right to clear the area; raised gear. Discovered radio was on 122.8 not 123! Reset communication to correct frequency and re-entered pattern from northwest right base and lined up on final to land. Gear down warning did not sound and from touchdown to stop slid 600 ft. Root cause was mistake to doublechk correct frequency which was different than was accustomed to use. Then stress of other traffic and raising gear and failure to do complete gump put me in accident mode combined with belief gear warning was working.

Original NASA ASRS Text

Title: M20 PLT AT NON TWRED ARPT HAS A GEAR UP LNDG.

Narrative: ENTERING TUOELA VALLEY FROM NE COULD NOT SEE STUDENT TFC AFTER DOING TOUCH-AND-GO TRAINING. MADE SEVERAL CALLS TO ANNOUNCE INTENTIONS. ON LONG FINAL SAW OTHER ACFT ON L BASE FOR RWY 17. I BROKE R TO CLR THE AREA; RAISED GEAR. DISCOVERED RADIO WAS ON 122.8 NOT 123! RESET COM TO CORRECT FREQ AND RE-ENTERED PATTERN FROM NW R BASE AND LINED UP ON FINAL TO LAND. GEAR DOWN WARNING DID NOT SOUND AND FROM TOUCHDOWN TO STOP SLID 600 FT. ROOT CAUSE WAS MISTAKE TO DOUBLECHK CORRECT FREQ WHICH WAS DIFFERENT THAN WAS ACCUSTOMED TO USE. THEN STRESS OF OTHER TFC AND RAISING GEAR AND FAILURE TO DO COMPLETE GUMP PUT ME IN ACCIDENT MODE COMBINED WITH BELIEF GEAR WARNING WAS WORKING.

Data retrieved from NASA's ASRS site as of January 2009 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.